Open source. Open possibilities.

Tokamak is a C# engine designed for creating games and virtual worlds, providing a modular set of building blocks for application development.

A deterministic, turn-based ASCII roguelike built on .NET 10 featuring shadowcasting FOV, A* pathfinding, and seeded dungeon generation.

Arknights: Wasteland Outpost Protocol is a top-down hardcore survival building game blending Roguelike and tower defense elements, where players command operators to survive the wasteland with permadeath mechanics.

Nexus Unity is an open-source automation package that runs a local JSON-RPC server inside the Unity Editor to enable AI tools and developer workflows to control the editor.

A complete, playable C# port of Infocom's Zork I (release 119), rebuilt from decompiled Inform 6 source with a rewritten parser and fixes for original-game bugs.

OpenRA is a free/libre real-time strategy game engine for early Westwood classics like Command & Conquer: Red Alert, Tiberian Dawn and Dune 2000. It is written in C# with SDL/OpenGL, runs on Windows, Linux, BSD and macOS, and offers mapping, modding and dedicated server tools.

Nakama is an open-source game backend server from Heroic Labs. It provides users, storage, social graph, chat, realtime and turn-based multiplayer, leaderboards, tournaments, parties, purchase validation, notifications and runtime code.

Band BoomBox is a free, open-source 2D rhythm game built with Unity, focused on controller-friendly cooperative multiplayer. It offers over ten songs with multiple difficulties, local play for up to six players, experimental LAN multiplayer, and a built-in editor for custom songs.

An MCP server that integrates the Godot game engine into AI assistants, enabling scene authoring, type-checked scripting, and live debugging.

rzeka is a single-threaded reactive event bus for C# built on Rx.NET that features automatic causality tracking and a real-time browser-based debugger.

A lightweight .NET library for building text-based adventure games, with rooms, NPCs, items, commands, conversations, maps, rendering frames and save support.