b3.games developer docs

For humans + AIs building games on b3.games.

Start here · /dev/build

Mental model + traps before you write code. What you're building (single-HTML game), how it runs (iframe shell + geo-redirect), single-player-first, loading patterns, MP-ready design choices, common traps. Synthesized from CR.16-CR.21 lessons.

Read first →

Multiplayer dev tools · /dev/multiplayer

Canonical contract spec (AI-optimized), upload validator, test harness, reference games. Read /dev/build first; use this section once you're ready to write MP code.

Open MP tools →