Open source. Open possibilities.

A standalone, type-aware GDScript language server for Godot 4.6 and 4.7, implemented as a faithful Rust port of the GDScript frontend.

Logseq is a privacy-first, open-source knowledge management and collaboration platform designed for organizing notes and managing tasks.

Z-machine interpreter for C64, C128, Plus/4, MEGA65, and Commander X16; supports Z-code versions 1-8, custom fonts/colors, undo, scrollback, d81 builds, and REU caching.

Polyfish is an open-source AI player for the strategy game Polytopia, combining Alpha-Zero-style MCTS with a neural network trained via self-play in Rust. It includes a full game engine simulator, a web UI, and a C++ memory-reader that extracts live game states from the Steam version.

A rogue-like game built with C#/Blazor, featuring procedural dungeons, tileset/ASCII rendering toggle, and data-driven content via JSON.

Irreden Engine is an isometric voxel game engine supporting C++23 with OpenGL/Metal backends, featuring modular ECS, audio, rendering, and scripting.

Ambition is an experimental, ECS-native 2D platformer engine built on Rust and Bevy. It features a headless-testable architecture, agent-native authoring tools for sprites and music, and a data-driven design focused on long-term elegance and reusability.

ALPURIS OS is a Python-based open-source engine that simulates a metropolis of 100 autonomous AI citizens using PIANO dual-speed cognition, an ECS event bus, a 3D WebGL voxel city and procedural Web Audio.

A native Windows application that converts text into 3D meshes with real-time extrusion, PBR materials, and dynamic lighting.

INSTEAD is a simple text adventure interpreter written in C++ and licensed under MIT. It allows users to run interactive fiction games from zip archives or installed directories, with support for a GTK-based file dialog.

OpenSearch is an open-source, enterprise-grade distributed search and observability suite designed to manage unstructured data at scale.

PlayCanvas is an open-source 3D game engine for browsers, supporting WebGL2/WebGPU, XR, physics, and glTF assets. Ideal for games, visualizations, and interactive apps.

Bevy is a data-driven, open-source game engine built in Rust, utilizing an Entity Component System (ECS) architecture for 2D and 3D game development.

Valkey is a high-performance, distributed key-value data structure server optimized for caching and real-time workloads, forked from the open-source Redis project.

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

A revamp of the NewAge Engine for creating interactive fiction, text adventures, visual novels, CYOA and dialogue games; early engine work uses JavaScript and HTML scripting.

Pyxel is a retro game engine for Python with simple, console-inspired limits such as 16 colors and four sound channels. It is MIT-licensed, free to use, and aimed at making pixel-art-style game creation approachable.

A real-time GPU-driven renderer built with C++20 and Vulkan 1.4, featuring mesh shaders, bindless rendering, and advanced ray-traced lighting effects.

AirSim is Microsoft's open-source simulator for drones and cars, built as an Unreal Engine plugin with an experimental Unity release. It supports software- and hardware-in-the-loop simulation with PX4 and ArduPilot, and exposes cross-language APIs for collecting images and controlling vehicles for AI research.

FreeCAD is a free, open-source, multiplatform 3D parametric modeler designed for designing real-life objects, supporting mechanical engineering, product design, and architecture.