"Last Breath" is a two-player underwater survival and combat game developed for the Global Game Jam 2025 at Lusófona University, under the theme “Bubble”.
After an ecological catastrophe, humanity fled beneath the waves — but greed and rivalry followed them down.
Two cities struggle for oxygen, resources, and dominance in the deep.
Last Breath is a couch-competitive arena game where two players pilot submarines, gather resources, and fight to keep their underwater cities alive.
Each choice matters: do you mine oxygen or steal it? Do you strike or retreat?
- 2-player local play — either two gamepads, or one gamepad + keyboard.
- Goal: keep your city supplied with oxygen. When your base runs out, you can no longer respawn.
- Gather, fight, and survive: resources affect your submarine while carried, and can be used to replenish your city.
- Respawning: destroyed subs return after a delay, but only while their city has oxygen.
- Recover the city: if the city runs of of oxygen, you can recover it by delivering two resources of the same type to the base.
- Victory: the match ends when one city runs out of oxygen and its pilot is dead.
| Action | Gamepad | Keyboard |
|---|---|---|
| Move | Left Analog | WASD / Cursors |
| Fire Torpedoes | West Button | Ctrl |
| Gather Resources | South Button | Space |
| Drop Resources | East Button | C |
- Enhanced logo and intro animation (bubble effect)
- New tile art (reference)
- 3–4 player mode and AI bots
- City upgrades and power-ups
- City attacks
- Underwater volcano and algae zones
- Additional enemy types (moray, shark, worm)
- Expanded narrative / open-world mode
- UI Pack Sci-Fi by Kenney, licensed through the CC0 license.
- Font Optimus by Pixel Sagas, free for non-commercial use.
- Crosshair icon by Pixa_icons, from Flat Icon, free for personal and commercial purpose with attribution.
- Propeler icon by Freepik, from Flat Icon, free for personal and commercial purpose with attribution.
- Rudder icon by IwitoStudio, from Flat Icon, free for personal and commercial purpose with attribution.
- Shield icon by Good Ware, from Flat Icon, free for personal and commercial purpose with attribution.
- Star icon by Pixel perfect, from Flat Icon, free for personal and commercial purpose with attribution.
- Stock photos from pexels.com, free to use.
- Everything else done by Diogo de Andrade, licensed through the CC0 license.
- Music by Wilson Almeida
- Game Start Sound by plasterbrain, CC0 license.
- Synthetic Submarine Rotor by urbanmatter, licensed through the CC-BY 3.0
- Depth Charges Kaboom SFX by Renovatio871, licensed through the CC0 license.
- S21-24 Underwater metal clanking by craigsmith, licensed through the CC0 license.
- SFX Electric ACtuator Under Load 1 by mpuffenbarger, licensed through the CC0 license.
- metal store rideau métallique #2 by arnaud coutancier, licensed through the CC-BY-NC 3.0 license.
- m4a1 or m16 reload sound by GFL7, licensed through the CC0 license.
- SONAR_830Hz_synthesized by MURAY, licensed through the CC0 license.
- Geiger Counter Hotspot (Extreme 2) by cookies+policy, licensed through the CC0 license.
- 8 morse channels simultaneously 230805 21018.3kHz by klankbeeld, licensed through the CC-BY 4.0 license.
- item_respawn by Silencer1337, licensed through the CC0 license.
- 150209 Trevor Webb Air Cyclinder by Bleachbear, licensed through the CC-BY-NC 3.0 license.
- Complex Minigun Spin-Up Firing by Hybrid_V, licensed through the CC-BY-NC 4.0 license.
- Electricity Game Sound Pack by faxcorp, licensed through the CC0 license.
- Ice & Electricity Magic by qubodup, licensed through the CC-BY 3.0 license.
- 007 - Squish 02 by Trashcan_Studios, licensed through the CC-BY 4.0 license.
- Gooey Squish by editor_adp, licensed through the CC0 license.
- Everything else done by Diogo de Andrade, licensed through the CC0 license.
- Uses Unity Common, MIT license.
- All remaining game source code by Diogo de Andrade is licensed under the MIT license.
- Autor: Diogo de Andrade