Yokaiste’s Sandbox Mod

Break the limits. Build the battle you want.

Play on Steam · Source package · YSM Community · Yuri’s WARNO Toolkit

YSM expands WARNO into a bigger, customizable sandbox: field vast armies, pick a ready-made deck, or face something stranger.

Features

• Expanded divisions and decks. Country, coalition, and all-unit rosters, with Unlimited variants for spectacle and Balanced variants for a more restrained match.
• Zombie Horde. Seven custom zombie threats bring a different fight to the battlefield.
• Extraordinary firepower and support. Nuclear bombers, oversized supply units, fortified support, and the Illegal Cannon.
• Bigger battles. Expanded match lengths, income choices, resources, and aircraft limits.
• Room to build. Generated decks, a larger deck creator, and armory improvements make large armies practical.
• A clearer battlefield interface. A dark charcoal HUD with soft white text, subtle borders, and light selection accents across match controls, aircraft, and unit panels.
• YSM × ANY MOD. Bring the sandbox to a mod you love with YWT. Compatibility varies by mod.

Work with the source

1. Create a WARNO mod with Mods/CreateNewMod.bat YourModName. Put Deploy-YSM.bat in the new folder beside GameData and CommonData, then run it to install YMB and YSM. It asks before applying changes.
2. Keep local overrides in YMB/ymb.config.yaml under mods.ysm.variables or mods.ysm.patches. For source development, edit mod settings and the owning feature in config/patch. Installer updates preserve local overrides but replace downloaded mod configs; keep authored changes in your own checkout.
3. From the WARNO mod folder, preview with YMB\YMB.bat build --mod ysm. Inspect YMB/.ymb-build/output, apply with YMB\YMB.bat sync --mod ysm, then compile using WARNO’s generation tools.

Keep YMB/.ymb-state for recovery, and preserve modTag and both generated-decks.*.store.json files for saved-deck identity. See YMB’s configuration guide for overrides and feature selection, and workflow guide for updates and recovery.

License

Custom non-commercial attribution + source-link license — see LICENSE and NOTICE.

• ✅ Play it, edit it, share it for free
• ✅ Upload it to a workshop or a code host at no charge
• 📣 Credit Yokaiste, link the source, say what you changed, pass the same license on
• ❌ No selling, paywalls, or monetized redistribution without written permission

This list is a summary. The LICENSE is what actually applies.

YSM contains no WARNO game data — it describes changes applied to your own copy of the game, and those files stay subject to Eugen Systems' terms.