
Fio
Quake/Hammer-style level editor with built-in game engine.
What it does
A real-time liminal Quake/Hammer-style level editor with built-in game engine. Optimised for mobile CPUs * Build a level, hit play, and walk around instantly * Real-time lighting with stencil shadows * Unified Forward Renderer * Classic brush-based workflow * Fog, glass & water shaders * Entity I/O system (logic, triggers, lights, speakers) * Terrain generation * OBJ model support * Supports Quake-style nodraw surfaces * Fully modular and open source (MIT License)
Does the same job
all alternatives →- F3Fio: 3D World editor/game engine – inspired by Radiant and HammerMar 2026 · github.com · ▲96
A liminal brush-based CSG editor and game engine with unified (forward) renderer inspired by Radiant and Worldcraft/Hammer Compact and lightweight (target: Snapdragon 8CX, OpenGL 3.3) Real-time lighting with stencil shadows without the need for pre-baked compilation
- IMI'm open-sourcing my game engine2023 · github.com · ▲318
Modd.io is a collaborative game editor that runs in browser. It's kind of like Figma for game dev. We made this engine low-code and multiplayer-first, so developeres can quickly prototype casual multiplayer games. I hope some of you guys will find this useful. Would love to hear feedback also. Thank you. Engine Demo: https://www.modd.io
- QEQ3Edit – Edit and play Quake 3 maps in the browserJul 2026 · q3edit.com · ▲106
I've been building a level editor for Quake 3 that runs entirely in the browser: Radiant-style layout, brush and patch editing, CSG, terrain sculpting, and entity editing. It opens and saves .map file and you can play the maps you build directly in the browser using a webassembly build of ioquake3.
- ULUnity like game editor running in pure WASM2023 · raverie-us.github.io · ▲644
In the wake of all the Unity nonsense, just wanted to toss the Raverie engine into this mix :) We’re building off a previous engine that we worked on for DigiPen Institute of Technology called the Zero Engine with a similar component based design architecture to Unity. Our engine had a unique feature called Spaces: separate worlds/levels that you can instantiate and run at the same time, which became super useful for creating UI overlays using only game objects, running multiple simulations, etc. The lighting and rendering engine is scriptable, and the default deferred rendering…
- AMA Marble Madness-inspired WebGL game we built for Netlify2024 · 5-million-devs.netlify.com · ▲616
Hello HN! We’re a small creative studio specializing in real-time 3D experiences. Netlify approached us to design and build an interactive experience to celebrate reaching 5 million developers. Inspired by the classic game Marble Madness, we created a gamified experience where users control a ball through playful, interactive levels. The goal was to blend marketing content with the look and feel of a game to engage users. The app is built with Three.js [1], using our custom render pipeline and shaders, and uses Rapier for physics simulation [2]. The 2D content is overlaid on the WebGL view…
- ADA DOS-like hobby OS written in Rust and x86 assembly2025 · github.com · ▲207
To try it out, simply build the project yourself from source, or use attached bootable ISO image of the system (in Releases on Github) and run it in QEMU. https://blog.vxn.dev/rou2exos-rusted-edition
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