diff --git a/scripts/sounds/gen_sounds.py b/scripts/sounds/gen_sounds.py
new file mode 100644
index 0000000..374b601
--- /dev/null
+++ b/scripts/sounds/gen_sounds.py
@@ -0,0 +1,262 @@
+"""Procedural, original sound effects and music for Israel Simulator (no samples, no recordings)."""
+import numpy as np, subprocess, os, sys
+from scipy import signal
+SR = 44100
+OUT = sys.argv[1]
+rng = np.random.default_rng(777)
+
+def t_(d): return np.arange(int(SR*d))/SR
+def env(n, a=0.01, r=0.1, d=None):
+    e = np.ones(n); A=int(a*SR); R=int(r*SR)
+    if A: e[:A] = np.linspace(0,1,A)
+    if R: e[-R:] *= np.linspace(1,0,R)
+    return e
+def adsr_exp(n, decay):  # percussive
+    return np.exp(-np.arange(n)/SR/decay)
+def bp(x, lo, hi, order=2):
+    b,a = signal.butter(order, [lo/(SR/2), hi/(SR/2)], 'band'); return signal.lfilter(b,a,x)
+def lp(x, f, order=2):
+    b,a = signal.butter(order, f/(SR/2), 'low'); return signal.lfilter(b,a,x)
+def hp(x, f, order=2):
+    b,a = signal.butter(order, f/(SR/2), 'high'); return signal.lfilter(b,a,x)
+def noise(d): return rng.standard_normal(int(SR*d))
+def norm(x, peak=0.89):
+    m = np.max(np.abs(x)); return x*(peak/m) if m>0 else x
+def fade(x, a=0.005, r=0.05):
+    if x.ndim==1: return x*env(len(x),a,r)
+    return x*env(x.shape[0],a,r)[:,None]
+def write(name, x, q=3):
+    path = os.path.join(OUT, name + '.ogg'); os.makedirs(os.path.dirname(path), exist_ok=True)
+    x = np.clip(x, -1, 1); ch = 1 if x.ndim==1 else 2
+    pcm = (x*32767).astype('<i2').tobytes()
+    subprocess.run(['ffmpeg','-v','error','-y','-f','s16le','-ar',str(SR),'-ac',str(ch),'-i','-',
+                    '-c:a','libvorbis','-q:a',str(q),'-map_metadata','-1',path], input=pcm, check=True)
+    print(name, ch, round(len(x)/SR,2), os.path.getsize(path))
+def place(buf, x, at):
+    i=int(at*SR); n=min(len(x), len(buf)-i)
+    if n>0: buf[i:i+n]+=x[:n]
+def bell(f, d, partials=((1,1),(2.0,.5),(2.76,.35),(4.07,.2),(5.4,.1)), decay=0.8):
+    t=t_(d); y=sum(a*np.sin(2*np.pi*f*r*t)*np.exp(-t/(decay/ r**0.5)) for r,a in partials); return y
+def mtof(m): return 440*2**((m-69)/12)
+
+# ---------- voices (formant synthesis, no real speech) ----------
+VOW = {'a':(800,1200,2500),'o':(500,850,2400),'u':(350,700,2300),'e':(450,1900,2600),'i':(300,2200,2900)}
+def voice(d, f0, vowels, rough=0.0, breath=0.05):
+    n=int(SR*d); t=np.arange(n)/SR
+    f0c = f0 if np.ndim(f0) else np.full(n,f0)
+    vib = 1+0.01*np.sin(2*np.pi*5.5*t)
+    ph = 2*np.cumsum(f0c*vib)/SR*np.pi
+    src = signal.sawtooth(ph)+ breath*rng.standard_normal(n)
+    if rough: src *= 1+rough*rng.standard_normal(n).clip(-2,2)*0.5
+    # split in segments per vowel
+    seg = np.array_split(np.arange(n), len(vowels)); out=np.zeros(n)
+    for idx,v in zip(seg, vowels):
+        s = src[idx]; y=np.zeros(len(idx))
+        for k,F in enumerate(VOW[v]):
+            y += bp(s, F*0.85, F*1.15)*(1.0,0.6,0.3)[k]
+        w = np.hanning(len(idx)+800)[400:-400] if len(idx)>800 else np.ones(len(idx))
+        out[idx] += y*np.maximum(w,0.35)
+    return out
+
+def bibi():
+    # ambient: two low mumbles
+    for i,(f,v) in enumerate([(105,'ou a'),(98,'e o')],1):
+        d=1.3; f0=np.linspace(f, f*0.9, int(SR*d))
+        write(f'entity/bibi/ambient{i}', norm(fade(voice(d,f0,[c for c in v if c!=' '], breath=0.03),0.05,0.25),0.7))
+    for i,(f,v) in enumerate([(150,'a'),(165,'e')],1):
+        d=0.45; f0=np.linspace(f*1.2, f*0.8, int(SR*d))
+        write(f'entity/bibi/hurt{i}', norm(fade(voice(d,f0,[v], rough=0.4),0.005,0.12),0.85))
+    d=2.2; f0=np.geomspace(170,55,int(SR*d))
+    x=voice(d,f0,['a','o','u'],rough=0.3)*np.linspace(1,0.3,int(SR*d))
+    write('entity/bibi/death', norm(fade(x,0.01,0.6),0.85))
+    # speech: syllable-rhythm babble, rising intonation, never real words
+    d=2.6; n=int(SR*d); t=np.arange(n)/SR
+    f0=120+18*np.sin(2*np.pi*0.9*t)+10*np.sin(2*np.pi*2.3*t)
+    x=voice(d,f0,list('aeoiaeuoae'))
+    syl=0.55+0.45*np.clip(np.sin(2*np.pi*4.2*t),0,1)
+    write('entity/bibi/speech', norm(fade(x*syl,0.02,0.3),0.8))
+    # enrage: layered roar with growl and noise
+    d=2.4; n=int(SR*d); f0=np.concatenate([np.geomspace(70,140,n//3), np.full(n-n//3,140)])
+    x=voice(d,f0,['o','a','a'],rough=0.9,breath=0.3)
+    x+= 0.5*voice(d,f0*0.5,['o','a','a'],rough=0.9)
+    x+= 0.3*lp(noise(d),900)*np.linspace(0.2,1,n)
+    x=np.tanh(2.5*norm(x))
+    write('entity/bibi/enrage', norm(fade(x,0.05,0.5),0.9))
+
+def transport():
+    # bicycle bell: two rings
+    b=np.zeros(int(SR*1.3)); r=bell(2650,1.0,((1,1),(1.52,.4),(2.43,.3)),decay=0.25)
+    place(b,r,0.0); place(b,r*0.9,0.28)
+    write('transport/bicycle_bell', norm(fade(b,0.001,0.15),0.8))
+    # bus horn: two-tone, square-ish, slightly detuned
+    d=1.1; t=t_(d); e=env(len(t),0.02,0.08)
+    x=sum(signal.square(2*np.pi*f*t, 0.4)*a for f,a in ((330,1),(415,0.9),(332,0.4)))
+    x=lp(x,2500)*e; x=np.tanh(1.5*x)
+    write('transport/bus_horn', norm(x,0.5))
+    # train whistle: chord of breathy pipes, two blasts
+    def blast(d):
+        t=t_(d); y=sum(np.sin(2*np.pi*f*t*(1+0.003*np.sin(2*np.pi*6*t))) for f in (523,659,784))
+        y+=0.25*bp(noise(d),500,1600)
+        return y*env(len(t),0.06,0.15)
+    w=np.zeros(int(SR*2.6)); place(w,blast(0.55),0); place(w,blast(1.7),0.8)
+    write('transport/train_whistle', norm(w,0.8))
+    # travel: whoosh with filter sweep
+    d=2.0; n=int(SR*d); x=noise(d); k=np.sin(np.pi*np.arange(n)/n)**2
+    y=bp(x,250,900)*(1-k)+bp(x,900,4500)*k
+    y=lp(y,6000)*np.sin(np.pi*np.arange(n)/n)**1.5
+    write('transport/travel', norm(y,0.7))
+
+def events():
+    # air-raid siren: wailing rise/fall, mono, 5 s
+    d=5.0; n=int(SR*d); t=np.arange(n)/SR
+    f=420+300*(0.5-0.5*np.cos(2*np.pi*t/2.5))
+    ph=2*np.pi*np.cumsum(f)/SR
+    x=np.sin(ph)+0.5*np.sin(2*ph)+0.25*np.sin(3*ph)+0.1*signal.square(ph)
+    x=lp(x,3000)*env(n,0.3,0.6)
+    write('event/air_raid_siren', norm(x,0.6))
+    # plane jet: broadband roar + whine, doppler-ish pitch drop
+    d=5.0; n=int(SR*d); t=np.arange(n)/SR
+    roar=lp(noise(d),1800)+0.4*bp(noise(d),2000,5000)
+    whine_f=np.where(t<2.5,3100,3100*0.82)+0*t; whine_f=signal.savgol_filter(whine_f,40001,1)
+    whine=0.08*np.sin(2*np.pi*np.cumsum(whine_f)/SR)
+    swell=np.exp(-((t-2.5)/1.4)**2)*0.85+0.15
+    x=(roar+whine)*swell
+    write('event/plane_jet', norm(fade(x,0.3,0.6),0.85))
+
+def ui_festival():
+    # landmark fanfare: bright brass-like arpeggio C E G C'
+    d=2.0; b=np.zeros(int(SR*d))
+    for i,m in enumerate((60,64,67,72)):
+        nd=0.9 if i==3 else 0.35; t=t_(nd); f=mtof(m+12)
+        y=sum(np.sin(2*np.pi*f*k*t)/k**1.3 for k in range(1,7))*np.exp(-t/0.5)*env(len(t),0.01,0.08)
+        place(b,y,i*0.16)
+    write('ui/landmark_discovered', norm(fade(b,0.002,0.3),0.75))
+    # hanukkah chime: 8 small bells rising (one per night) + shamash
+    b=np.zeros(int(SR*3.0))
+    for i,m in enumerate((74,76,77,79,81,82,84,86)):
+        place(b, bell(mtof(m),1.6,decay=0.6)*0.5, i*0.13)
+    place(b, bell(mtof(91),1.8,decay=0.9)*0.6, 8*0.13+0.1)
+    write('festival/hanukkah_chime', norm(fade(b,0.001,0.4),0.7))
+    # shabbat candle: match strike + soft warm double chime
+    b=np.zeros(int(SR*2.6))
+    strike=bp(noise(0.25),1500,7000)*np.exp(-t_(0.25)/0.05)
+    flame=lp(noise(0.9),600)*np.sin(np.pi*np.arange(int(SR*0.9))/int(SR*0.9))*0.3
+    place(b,strike*0.6,0); place(b,flame,0.12)
+    place(b,bell(mtof(79),2.0,decay=0.9)*0.6,0.45); place(b,bell(mtof(86),1.8,decay=0.8)*0.4,0.75)
+    write('festival/shabbat_candle', norm(fade(b,0.001,0.4),0.65))
+
+def babble(d, voices=10, base=0.6):
+    n=int(SR*d); out=np.zeros(n)
+    for k in range(voices):
+        f0=rng.uniform(95,230); seg=rng.uniform(0.6,1.6); st=rng.uniform(0,d-0.3)
+        L=min(seg,d-st); vs=list(rng.choice(list('aeiou'),5))
+        tt=np.arange(int(SR*L))/SR
+        x=voice(L,f0*(1+0.08*np.sin(2*np.pi*rng.uniform(1,3)*tt)),vs)*(0.6+0.4*np.clip(np.sin(2*np.pi*rng.uniform(3,5)*tt),0,1))
+        x=fade(x,0.05,0.15); place(out,x*rng.uniform(0.4,1.0),st)
+    room=lp(noise(d),400)*0.15
+    return lp(out,3000)+room
+
+def ambience():
+    d=6.0; n=int(SR*d); t=np.arange(n)/SR
+    # Tel Aviv: sea waves + distant traffic + a scooter pass
+    waves=lp(noise(d),900)*(0.5+0.5*np.sin(2*np.pi*t/3.0-1)**2)
+    traffic=lp(noise(d),250)*0.6
+    scooter_f=180+20*np.sin(2*np.pi*t*0.4); sc=signal.sawtooth(2*np.pi*np.cumsum(scooter_f)/SR)*np.exp(-((t-3.8)/0.9)**2)*0.12
+    write('ambient/tel_aviv', norm(fade(waves+traffic+lp(sc,1500),0.5,0.8),0.55))
+    # Jerusalem: wind over stone, distant low bell and soft birds
+    wind=bp(noise(d),200,1200)*(0.6+0.4*np.sin(2*np.pi*t/4.0))
+    b=np.zeros(n); place(b,bell(mtof(50),3.5,decay=1.6)*0.35,1.0)
+    for st in (0.6,2.2,4.5):
+        L=0.12; tt=t_(L); place(b,np.sin(2*np.pi*(3200+1500*tt/L)*tt)*np.hanning(len(tt))*0.08,st)
+    write('ambient/jerusalem', norm(fade(wind+b,0.5,0.8),0.5))
+    # Jaffa: harbor lapping water, creaking rope, ship bell
+    lap=bp(noise(d),150,700)*(0.5+0.5*np.abs(np.sin(2*np.pi*t/1.7)))
+    b=np.zeros(n); place(b,bell(mtof(81),2.5,decay=0.7)*0.25,1.5); place(b,bell(mtof(81),2.5,decay=0.7)*0.2,1.85)
+    creak=np.zeros(n); L=0.5; tt=t_(L); place(creak,bp(signal.sawtooth(2*np.pi*(140+40*tt)*tt),300,1500)*np.hanning(len(tt))*0.1,4.0)
+    write('ambient/jaffa', norm(fade(lap+b+creak,0.5,0.8),0.55))
+    # crowd at a speech: murmur
+    write('ambient/speech_crowd', norm(fade(babble(5.0,14),0.6,0.8),0.55))
+    # market: murmur + coin clinks + crates
+    x=babble(5.0,10); b=np.zeros(len(x))
+    for st in rng.uniform(0.2,4.6,6): place(b,bell(rng.uniform(3500,5200),0.3,((1,1),(2.3,.5)),decay=0.05)*0.15,st)
+    for st in (1.3,3.4): place(b,lp(noise(0.08),1500)*np.exp(-t_(0.08)/0.02)*0.4,st)
+    write('ambient/market_bustle', norm(fade(x+b,0.5,0.8),0.55))
+
+# ---------- music (stereo, original melodies) ----------
+def inst_clarinet(f, d, vel=1.0):
+    t=t_(d); vib=1+0.006*np.sin(2*np.pi*5.2*t)*np.clip(t*3,0,1)
+    ph=2*np.pi*np.cumsum(f*vib)/SR
+    y=sum(np.sin(k*ph)/k for k in (1,3,5,7,9))+0.04*rng.standard_normal(len(t))
+    return lp(y,3500)*env(len(t),0.03,min(0.08,d/3))*vel
+def inst_pluck(f,d,vel=1.0):
+    t=t_(d); y=sum(np.sin(2*np.pi*f*k*t)*np.exp(-t*k*3)/k for k in range(1,6)); return y*env(len(t),0.003,0.03)*vel
+def inst_pad(f,d,vel=1.0):
+    t=t_(d); y=sum(np.sin(2*np.pi*f*r*t+ k) for k,r in enumerate((1,1.003,0.997,2.001)))/4
+    return lp(y,1800)*env(len(t),min(0.6,d/3),min(0.8,d/3))*vel
+def inst_kick(d=0.25):
+    t=t_(d); return np.sin(2*np.pi*np.cumsum(np.geomspace(120,45,len(t)))/SR)*np.exp(-t/0.12)
+def inst_snare(d=0.15):
+    t=t_(d); return hp(noise(d),1500)*np.exp(-t/0.05)*0.6
+def mix_stereo(n): return np.zeros((n,2))
+def put(buf,x,at,pan=0.0,g=1.0):
+    i=int(at*SR); m=min(len(x),buf.shape[0]-i)
+    if m<=0: return
+    l=np.cos((pan+1)*np.pi/4); r=np.sin((pan+1)*np.pi/4)
+    buf[i:i+m,0]+=x[:m]*l*g; buf[i:i+m,1]+=x[:m]*r*g
+def reverb(x, wet=0.25):
+    out=x.copy()
+    for dl,g in ((0.031,0.5),(0.047,0.4),(0.071,0.3),(0.113,0.22),(0.163,0.15)):
+        k=int(dl*SR)
+        out[k:,0]+=x[:-k,1]*g*wet*2; out[k:,1]+=x[:-k,0]*g*wet*2
+    return out
+
+def klezmer():
+    # original freygish (D Ahava Rabbah: D Eb F# G A Bb C) bulgar, 132 bpm, 32 bars ~58 s
+    bpm=132; beat=60/bpm; bars=32; n=int(SR*(bars*4*beat+1.0)); buf=mix_stereo(n)
+    sc=[62,63,66,67,69,70,72,74,75,78]
+    phrase_a=[(0,1),(2,.5),(3,.5),(4,1),(3,.5),(2,.5),(1,1.5),(0,.5),(2,1),(4,1),(5,.5),(4,.5),(3,.5),(2,.5),(0,2),(-1,0)]
+    phrase_b=[(4,.5),(5,.5),(6,1),(5,.5),(4,.5),(3,1),(4,.5),(3,.5),(2,1),(1,.5),(2,.5),(3,1),(2,.5),(1,.5),(0,2)]
+    phrase_c=[(7,1),(6,.5),(5,.5),(4,1),(6,.5),(5,.5),(4,.5),(3,.5),(2,1),(4,1.5),(3,.5),(2,.5),(1,.5),(0,2)]
+    def play_phrase(ph, start, octave=0):
+        tt=start
+        for deg,dur in ph:
+            if dur==0: continue
+            put(buf, inst_clarinet(mtof(sc[deg]+octave), dur*beat*0.95, 0.5), tt, -0.2)
+            tt+=dur*beat
+        return tt
+    tt=0.0; seq=[phrase_a,phrase_a,phrase_b,phrase_c]*4
+    for i,p in enumerate(seq):
+        if tt>=bars*4*beat-2*beat: break
+        tt=play_phrase(p, tt, 12 if i>=8 and p is phrase_c else 0)
+    # oom-pah: bass on 1/3, chords on 2/4 (D major / C minor / G minor style freygish harmony)
+    prog=[(50,[62,66,69]),(50,[62,66,69]),(48,[63,67,72]),(50,[62,66,69])]
+    for bar in range(bars):
+        root,ch=prog[(bar//2)%4]
+        for b in range(4):
+            at=(bar*4+b)*beat
+            if b%2==0: put(buf, inst_pluck(mtof(root-12 if b==0 else root-5), beat*0.9, 0.7), at, 0.0)
+            else:
+                for m in ch: put(buf, inst_pluck(mtof(m-12), beat*0.5, 0.18), at, 0.35)
+            put(buf, inst_kick(), at, 0, 0.35 if b%2==0 else 0)
+            if b%2==1: put(buf, inst_snare(), at, 0.1, 0.25)
+    write('music/klezmer', norm(fade(reverb(buf,0.2),0.05,1.0),0.85), q=3)
+
+def shabbat():
+    # original calm piece in D major, 72 bpm, 16 bars ~53 s: pads + gentle pluck melody
+    bpm=72; beat=60/bpm; bars=16; n=int(SR*(bars*4*beat+3)); buf=mix_stereo(n)
+    chords=[[50,57,62,66],[47,54,59,62],[43,55,59,62],[45,52,57,61]]  # D Bm G A
+    for bar in range(bars):
+        ch=chords[bar%4]
+        for i,m in enumerate(ch): put(buf, inst_pad(mtof(m),4*beat+0.6,0.16), bar*4*beat, -0.5+i*0.33)
+    mel=[(74,2),(76,1),(78,1),(76,3),(74,1),(71,2),(73,1),(74,1),(76,4),
+         (78,2),(81,1),(78,1),(76,2),(74,2),(73,2),(71,1),(73,1),(74,4),
+         (69,1),(71,1),(74,2),(76,2),(78,2),(79,2),(78,1),(76,1),(74,4),
+         (76,2),(74,1),(73,1),(71,2),(69,2),(71,1),(73,1),(74,6)]
+    tt=0.0
+    for m,dd in mel:
+        put(buf, inst_pluck(mtof(m), dd*beat+0.4, 0.35), tt, 0.25)
+        put(buf, bell(mtof(m+12), dd*beat+0.4, decay=0.6)*0.04, tt, -0.3)
+        tt+=dd*beat
+    write('music/shabbat_shalom', norm(fade(reverb(buf,0.35),0.8,2.5),0.8), q=3)
+
+bibi(); transport(); events(); ui_festival(); ambience(); klezmer(); shabbat()
diff --git a/src/main/resources/assets/israel_simulator/sounds.json b/src/main/resources/assets/israel_simulator/sounds.json
index 7eef297..8516a11 100644
--- a/src/main/resources/assets/israel_simulator/sounds.json
+++ b/src/main/resources/assets/israel_simulator/sounds.json
@@ -10,7 +10,7 @@
   "music.cultural.klezmer": {
     "sounds": [
       {
-        "name": "minecraft:music/game/creative/biome_fest",
+        "name": "israel_simulator:music/klezmer",
         "stream": true
       }
     ]
@@ -18,71 +18,71 @@
   "music.cultural.shabbat_shalom": {
     "sounds": [
       {
-        "name": "minecraft:music/game/clark",
+        "name": "israel_simulator:music/shabbat_shalom",
         "stream": true
       }
     ]
   },
   "ambient.city.tel_aviv": {
     "sounds": [
-      "minecraft:ambient/underwater/underwater_ambience"
+      "israel_simulator:ambient/tel_aviv"
     ]
   },
   "ambient.city.jerusalem": {
     "sounds": [
-      "minecraft:ambient/cave/cave1"
+      "israel_simulator:ambient/jerusalem"
     ]
   },
   "ambient.city.jaffa": {
     "sounds": [
-      "minecraft:block/bell/bell_use01"
+      "israel_simulator:ambient/jaffa"
     ]
   },
   "ambient.event.speech_crowd": {
     "sounds": [
-      "minecraft:mob/villager/idle1"
+      "israel_simulator:ambient/speech_crowd"
     ]
   },
   "ambient.event.market_bustle": {
     "sounds": [
-      "minecraft:mob/villager/haggle1"
+      "israel_simulator:ambient/market_bustle"
     ]
   },
   "audio.festival.hanukkah_chime": {
     "sounds": [
-      "minecraft:block/bell/resonate"
+      "israel_simulator:festival/hanukkah_chime"
     ]
   },
   "audio.festival.shabbat_candle": {
     "sounds": [
-      "minecraft:block/amethyst/shimmer"
+      "israel_simulator:festival/shabbat_candle"
     ]
   },
   "entity.bibi_boss.ambient": {
     "sounds": [
-      "minecraft:mob/villager/idle1",
-      "minecraft:mob/villager/idle2"
+      "israel_simulator:entity/bibi/ambient1",
+      "israel_simulator:entity/bibi/ambient2"
     ]
   },
   "entity.bibi_boss.hurt": {
     "sounds": [
-      "minecraft:mob/villager/hit1",
-      "minecraft:mob/villager/hit2"
+      "israel_simulator:entity/bibi/hurt1",
+      "israel_simulator:entity/bibi/hurt2"
     ]
   },
   "entity.bibi_boss.death": {
     "sounds": [
-      "minecraft:mob/villager/death"
+      "israel_simulator:entity/bibi/death"
     ]
   },
   "entity.bibi_boss.speech": {
     "sounds": [
-      "minecraft:mob/evocation_illager/prepare_attack1"
+      "israel_simulator:entity/bibi/speech"
     ]
   },
   "entity.bibi_boss.enrage": {
     "sounds": [
-      "minecraft:mob/wither/idle1"
+      "israel_simulator:entity/bibi/enrage"
     ]
   },
   "music.boss.bibi_theme": {
@@ -103,40 +103,37 @@
   },
   "entity.bicycle.bell": {
     "sounds": [
-      "minecraft:block/bell/bell_use01"
+      "israel_simulator:transport/bicycle_bell"
     ]
   },
   "entity.bus.horn": {
     "sounds": [
-      "minecraft:item/goat_horn/call0"
+      "israel_simulator:transport/bus_horn"
     ]
   },
   "entity.train.whistle": {
     "sounds": [
-      "minecraft:item/goat_horn/call1"
+      "israel_simulator:transport/train_whistle"
     ]
   },
   "entity.transport.travel": {
     "sounds": [
-      "minecraft:mob/endermen/portal"
+      "israel_simulator:transport/travel"
     ]
   },
   "ui.landmark_discovered": {
     "sounds": [
-      "minecraft:ui/toast/challenge_complete"
+      "israel_simulator:ui/landmark_discovered"
     ]
   },
   "event.air_raid_siren": {
     "sounds": [
-      "minecraft:block/bell/resonate",
-      "minecraft:mob/warden/sonic_boom1",
-      "minecraft:block/sculk_shrieker/shriek1"
+      "israel_simulator:event/air_raid_siren"
     ]
   },
   "event.plane_jet": {
     "sounds": [
-      "minecraft:mob/enderdragon/growl1",
-      "minecraft:ambient/underwater/underwater_ambience"
+      "israel_simulator:event/plane_jet"
     ]
   }
-}
\ No newline at end of file
+}
diff --git a/src/main/resources/assets/israel_simulator/sounds/ambient/jaffa.ogg b/src/main/resources/assets/israel_simulator/sounds/ambient/jaffa.ogg
new file mode 100644
index 0000000..404c315
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/ambient/jaffa.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/ambient/jerusalem.ogg b/src/main/resources/assets/israel_simulator/sounds/ambient/jerusalem.ogg
new file mode 100644
index 0000000..f060e1c
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/ambient/jerusalem.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/ambient/market_bustle.ogg b/src/main/resources/assets/israel_simulator/sounds/ambient/market_bustle.ogg
new file mode 100644
index 0000000..d8c8466
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/ambient/market_bustle.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/ambient/speech_crowd.ogg b/src/main/resources/assets/israel_simulator/sounds/ambient/speech_crowd.ogg
new file mode 100644
index 0000000..c0d7079
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/ambient/speech_crowd.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/ambient/tel_aviv.ogg b/src/main/resources/assets/israel_simulator/sounds/ambient/tel_aviv.ogg
new file mode 100644
index 0000000..c9913bc
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/ambient/tel_aviv.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/entity/bibi/ambient1.ogg b/src/main/resources/assets/israel_simulator/sounds/entity/bibi/ambient1.ogg
new file mode 100644
index 0000000..1c6ab5c
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/entity/bibi/ambient1.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/entity/bibi/ambient2.ogg b/src/main/resources/assets/israel_simulator/sounds/entity/bibi/ambient2.ogg
new file mode 100644
index 0000000..a24c8b1
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/entity/bibi/ambient2.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/entity/bibi/death.ogg b/src/main/resources/assets/israel_simulator/sounds/entity/bibi/death.ogg
new file mode 100644
index 0000000..5d367ed
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/entity/bibi/death.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/entity/bibi/enrage.ogg b/src/main/resources/assets/israel_simulator/sounds/entity/bibi/enrage.ogg
new file mode 100644
index 0000000..c23b7a0
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/entity/bibi/enrage.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/entity/bibi/hurt1.ogg b/src/main/resources/assets/israel_simulator/sounds/entity/bibi/hurt1.ogg
new file mode 100644
index 0000000..645957a
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/entity/bibi/hurt1.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/entity/bibi/hurt2.ogg b/src/main/resources/assets/israel_simulator/sounds/entity/bibi/hurt2.ogg
new file mode 100644
index 0000000..e18a7e7
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/entity/bibi/hurt2.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/entity/bibi/speech.ogg b/src/main/resources/assets/israel_simulator/sounds/entity/bibi/speech.ogg
new file mode 100644
index 0000000..0b5a656
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/entity/bibi/speech.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/event/air_raid_siren.ogg b/src/main/resources/assets/israel_simulator/sounds/event/air_raid_siren.ogg
new file mode 100644
index 0000000..c11cf28
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/event/air_raid_siren.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/event/plane_jet.ogg b/src/main/resources/assets/israel_simulator/sounds/event/plane_jet.ogg
new file mode 100644
index 0000000..fd52c91
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/event/plane_jet.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/festival/hanukkah_chime.ogg b/src/main/resources/assets/israel_simulator/sounds/festival/hanukkah_chime.ogg
new file mode 100644
index 0000000..2c4965c
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/festival/hanukkah_chime.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/festival/shabbat_candle.ogg b/src/main/resources/assets/israel_simulator/sounds/festival/shabbat_candle.ogg
new file mode 100644
index 0000000..3415c85
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/festival/shabbat_candle.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/music/klezmer.ogg b/src/main/resources/assets/israel_simulator/sounds/music/klezmer.ogg
new file mode 100644
index 0000000..138f28b
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/music/klezmer.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/music/shabbat_shalom.ogg b/src/main/resources/assets/israel_simulator/sounds/music/shabbat_shalom.ogg
new file mode 100644
index 0000000..2dfc836
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/music/shabbat_shalom.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/transport/bicycle_bell.ogg b/src/main/resources/assets/israel_simulator/sounds/transport/bicycle_bell.ogg
new file mode 100644
index 0000000..6a36deb
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/transport/bicycle_bell.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/transport/bus_horn.ogg b/src/main/resources/assets/israel_simulator/sounds/transport/bus_horn.ogg
new file mode 100644
index 0000000..fa48ece
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/transport/bus_horn.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/transport/train_whistle.ogg b/src/main/resources/assets/israel_simulator/sounds/transport/train_whistle.ogg
new file mode 100644
index 0000000..6d54295
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/transport/train_whistle.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/transport/travel.ogg b/src/main/resources/assets/israel_simulator/sounds/transport/travel.ogg
new file mode 100644
index 0000000..83cb6cf
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/transport/travel.ogg differ
diff --git a/src/main/resources/assets/israel_simulator/sounds/ui/landmark_discovered.ogg b/src/main/resources/assets/israel_simulator/sounds/ui/landmark_discovered.ogg
new file mode 100644
index 0000000..3aef2a4
Binary files /dev/null and b/src/main/resources/assets/israel_simulator/sounds/ui/landmark_discovered.ogg differ
diff --git a/src/test/java/com/israelsimulator/validation/DataAndResourceValidationTest.java b/src/test/java/com/israelsimulator/validation/DataAndResourceValidationTest.java
index 9415173..76d6871 100644
--- a/src/test/java/com/israelsimulator/validation/DataAndResourceValidationTest.java
+++ b/src/test/java/com/israelsimulator/validation/DataAndResourceValidationTest.java
@@ -355,6 +355,42 @@ void testVanillaSoundFilesExist() throws IOException {
         }
     }
 
+    @Test
+    @DisplayName("Every custom sound in sounds.json has a bundled, non-empty Ogg file")
+    void testCustomSoundFilesExist() throws IOException {
+        Path soundsJsonPath = RESOURCES_PATH.resolve(Paths.get("assets", IsraelSimulator.MOD_ID, "sounds.json"));
+        Path soundsDir = RESOURCES_PATH.resolve(Paths.get("assets", IsraelSimulator.MOD_ID, "sounds"));
+        List<String> missing = new ArrayList<>();
+        try (FileReader reader = new FileReader(soundsJsonPath.toFile())) {
+            JsonObject soundsJson = GSON.fromJson(reader, JsonObject.class);
+            for (Map.Entry<String, JsonElement> event : soundsJson.entrySet()) {
+                var sounds = event.getValue().getAsJsonObject().getAsJsonArray("sounds");
+                assertFalse(sounds.isEmpty(), event.getKey() + " has no sounds");
+                for (JsonElement entry : sounds) {
+                    String name = entry.isJsonObject()
+                            ? entry.getAsJsonObject().get("name").getAsString()
+                            : entry.getAsString();
+                    if (name.startsWith("minecraft:")) continue;
+                    if (entry.isJsonObject() && entry.getAsJsonObject().has("type")
+                            && "event".equals(entry.getAsJsonObject().get("type").getAsString())) continue;
+                    String relative = name.contains(":") ? name.substring(name.indexOf(':') + 1) : name;
+                    Path ogg = soundsDir.resolve(relative + ".ogg");
+                    if (!Files.exists(ogg) || Files.size(ogg) < 64) {
+                        missing.add(event.getKey() + " -> " + ogg);
+                        continue;
+                    }
+                    byte[] head = new byte[4];
+                    try (var in = Files.newInputStream(ogg)) {
+                        assertEquals(4, in.read(head), "Cannot read " + ogg);
+                    }
+                    assertEquals("OggS", new String(head, java.nio.charset.StandardCharsets.US_ASCII),
+                            ogg + " is not an Ogg file");
+                }
+            }
+        }
+        assertTrue(missing.isEmpty(), "Custom sound files missing or empty: " + missing);
+    }
+
     @Test
     @DisplayName("Hava Nagila disc sound is a non-empty bundled ogg, not a vanilla fallback")
     void testHavaNagilaDiscOggPresent() throws IOException {
diff --git a/test.md b/test.md
index 4b9bb38..1e6601a 100644
--- a/test.md
+++ b/test.md
@@ -939,3 +939,12 @@ Non provato dall'utente in gioco.
 ## Betatesting in gioco del 2 novembre 2026 (seed 777, build CI di main 532fbe5)
 - Superati: Welcome to Israel, Tel Aviv, Tel Aviv di notte, Gerusalemme e Muro del Pianto, preghiera al Kotel (5 diamanti, biglietto consumato), Kippah al gatto, Dead Sea Tourist (galleggiare e fango), Blessed Trader (scambio con la Corona del Rabbino), hummus che lascia la ciotola, sabich che lascia nella griglia la ciotola della tahini, Menorah (modello, candele 1 e 2 accese con l'acciarino, spenta con shift + click), aereo sulle Torri Gemelle (arriva entro un minuto, impatto, "Brace for Impact"), Shabbat (annuncio, rigenerazione a riposo, "Shabbat Shalom", avviso quando si lavora e niente bonus).
 - Nota: i bioma sono in celle 4×4×4. Il fango messo a mano in una cella di bioma diversa dal Mar Morto non conta. Non è un bug: nel terreno vero il fango è nella cella del Mar Morto.
+
+## Suoni custom mancanti: 21 eventi usavano suoni vanilla di ripiego
+- Problema riscontrato: in `sounds.json` mancava un suono proprio per 21 eventi della mod. Usavano suoni vanilla di ripiego, per esempio un villager per il boss Bibi, un corno di capra per bus e treno, un warden per la sirena e le musiche vanilla per klezmer e Shabbat. I file custom esistenti (Hava Nagila, temi dei boss) c'erano già.
+- Funzionamento atteso: ogni evento della mod ha un suo file `.ogg` in `assets/israel_simulator/sounds/`.
+- Soluzione: 23 file originali generati al computer con `scripts/sounds/gen_sounds.py` (numpy/scipy, Ogg Vorbis). Non ci sono registrazioni né melodie prese da altri.
+  - Effetti mono: Bibi (2 versi d'ambiente, 2 di dolore, morte, discorso, furia), campanello della bici, clacson del bus, fischio del treno, viaggio, sirena antiaerea, jet dell'aereo, fanfara del luogo scoperto, campanelli di Hanukkah, candela dello Shabbat. Gli ambienti di Tel Aviv, Gerusalemme, Giaffa, la folla e il mercato durano 5–6 s.
+  - Musica stereo: `music/klezmer` (59 s, bulgar originale in modo freygish) e `music/shabbat_shalom` (56 s, brano calmo in re maggiore).
+  - Il nuovo test `testCustomSoundFilesExist` fallisce se un suono custom di `sounds.json` non ha il suo file Ogg o se il file è vuoto.
+- Da sapere: `kirk_boss_theme.ogg` è identico byte per byte a `bibi_boss_theme.ogg`, cioè i due boss hanno la stessa musica.