28 tagged game engine, measured the same way as everything else here.
Browse within: game-development 8
Instructions file CodexOpenCode
Instructions for iamlukethedev/Claw3D, covering agent instructions, cursor cloud specific instructions, service overview, running the app and lint, typecheck, and tests.
community-shaders/skyrim-community-shaders
Instructions file GitHub Copilot
Copilot instructions for community-shaders/skyrim-community-shaders, covering github copilot instructions, primary documentation, project overview, environment and build essentials and windows-only requirements.
Instructions file CodexOpenCode
Instructions for InvadingOctopus/comedot, covering agents.md, guidelines for the comedot project and repository, project overview, folder structure & module organization and subsystems.
Instructions file CodexOpenCode
Instructions for cvet/fonline, covering fonline engine — ai maintainer guide, scope, before changing anything, documentation map and validation routing.
Instructions file
Instructions for cvet/fonline, a project described as: FOnline Engine is a flexible cross-platform isometric game engine.
Instructions file CodexOpenCode
Instructions for iamlukethedev/Hermes3D, covering agent instructions, development environment instructions, service overview, running the app and lint, typecheck, and tests.
Instructions file CodexOpenCode
Instructions for Sisyphe42/ReignsAgent, covering reignsagent system specification & agent guidelines, 0. project goal, 1. core architecture (decoupled design), 2. extensibility specification and 3. maintenance protocols.
Instructions file CodexOpenCode
Instructions for phase-rs/phase, a project described as: A rules engine and game client — Rust + WASM + React.
Instructions file
Instructions for phase-rs/phase, covering claude.md, project overview, design principles — read this first, when in doubt and agent team orchestration standards.
Instructions file Gemini CLI
Instructions for phase-rs/phase, a project described as: A rules engine and game client — Rust + WASM + React.
Instructions file CodexOpenCode
AGENTS.md instructions for gameknife/gkNextEngine, covering agents.md, communication preference, project overview, build commands and run commands.
Instructions file
Claude Code instructions for gameknife/gkNextEngine, a project described as: gkNextEngine: cross platform 3D game engine written in modern c++ and vulkan with modern rendering features.
Instructions file
Instructions for KilledByAPixel/LittleJS-AI: You are a helpful assistant for building playable LittleJS games with Claude.
SummerEngine/summer-engine-agent
Instructions file CodexOpenCode
Instructions for SummerEngine/summer-engine-agent, covering summer — agent context, what you're working with, critical rules, skill priority and mcp tool palette (project-matched local editor).
SummerEngine/summer-engine-agent
Instructions file
Instructions for SummerEngine/summer-engine-agent: This file primes Claude Code on Summer when it loads from this repo. The full agent workflow lives in skills/workflow/using-summer/SKILL.md; activate that skill on every fresh session.
SummerEngine/summer-engine-agent
Instructions file Gemini CLI
Instructions for SummerEngine/summer-engine-agent, covering summer — context primer for gemini, what summer engine is, how to behave, skill priority and type-system traps.
Instructions file CodexOpenCode
AGENTS.md instructions for lxsolutions/studio-foundation: Follow docs/agents/WORKINGAGREEMENTS.md — it is the source of truth. Summary of the non-negotiables.
Instructions file
Claude Code instructions for lxsolutions/studio-foundation, covering claude.md, quick facts and godotprompter.
Instructions file CodexOpenCode
AGENTS.md instructions for electricsheephq/WorldOS, covering worldos agent instructions, codex desktop local-resource policy, worldos takeover truth, support vm and gex44 gpu host (evaos-gpu-gex44-1).
Instructions file
Instructions for kamwoh/yume, covering yume (夢) — json-driven game framework on godot, quick start, framework structure, how the engine works and tick rate is the engine's heartbeat (2026-05-16).
Instructions file CodexOpenCode
AGENTS.md instructions for Fantety/next-engine, a project described as: Next Engine – Multi-platform 2D and 3D game engine with AI.
Instructions file CodexOpenCode
AGENTS.md instructions for nickschuetz/o3de-mcp, covering agent guide — o3de-mcp, quick start decision tree, token efficiency rules, 1. batch over individual calls and 2. query before modifying.
Instructions file
Claude Code instructions for nickschuetz/o3de-mcp, covering claude.md, what this is, commands, install (editable, with dev tools) and run the mcp server.
Instructions file CodexOpenCode
AGENTS.md instructions for s-nems/open-northland, covering agents.md: open northland project contract, repository and legal boundary, non-negotiable rules, code quality and working with content.