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Life & fun · alternatives · 2026

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24 alternatives to Unity like game editor running in pure WASM

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…

Raverie is a game editor built entirely in WebAssembly that runs in web browsers. Based on the Zero Engine developed for DigiPen Institute of Technology, it uses a component-based architecture similar to Unity. The… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Unity like game editor running in pure WASM launched in 2023; newer entries below may have overtaken it.

  1. 1

    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

    2023 · github.com · its alternatives →

  2. 2

    Hello HN, Just wanted to show this little 2D game engine that I've been working on for some time (around 2 years on the editor part, longer on some of the components). It's quite full featured but obviously this a project of such magnitude already that the work never really ends. That being said it's definitely already at a point where games can made and published. The editor runs natively on Windows and Linux using Qt5. The games can run on both Win and Linux as well as on WASM with WebGL. Feature wise there's a bunch of the stuff you'd expect. Audio, graphics, scripting,…

    2022 · github.com · its alternatives →

  3. 3

    An OpenGL RTS game engine written in C. Contribute to eduard-permyakov/permafrost-engine development by creating an account on GitHub.

    2021 · github.com · its alternatives →

  4. 4TS

    Hello everyone, I would like to see if there is any interest in this little project that I have been working on for the past few years. Could be relevant, seeing the direction in which the mainstream game engines are going. I didn't really like any of the already existing options, so I tried to make my own and it turned out to be easier than expected. It's sort of like a low-budget Unreal/Source, but with open-world streaming support and it is free and open source. Very old-school. But optimized for more modern hardware. Very fast too. Still not production ready, but it seems like it is…

    2025 · racenis.github.io · its alternatives →

  5. 5

    Earlier this year, we released our open-source game engine [0] built with Rust, WebAssembly, and WebGPU. Today, we’re happy to announce the Ambient platform, which brings web deployment, server hosting, and more to the runtime. With Ambient, you can make a game, deploy it to the browser in one command, share your URL and instantly play with others, no downloads or installs needed. Our WASM use is innovative; it is being used as both a sandboxed runtime for user code, and as a way to run the entire Ambient runtime in the browser. This, paired with our ECS data model, enables a highly modular…

    2023 · ambient.run · its alternatives →

  6. 6
    Mirage▲278

    Where you co-create the game as you play it

    2025 · its alternatives →

  7. 7

    GitHub repo: https://github.com/ArcadeMakerSources/ArcadeMaker (first of all, i want to say that I made this project for fun and challenge. I always wanted to create my own language. This has no business goal or something.) So the project is a 2D game engine (MonoGame backend) inspired by GameMaker 8. It includes its own IDE (built with WinForms) and an interpreted programming language that I wrote myself. The language—definitely the biggest challenge in the project—is a simple dynamically typed language. When I started, I had zero knowledge of how to build something like…

    Aug 2026 · github.com · its alternatives →

  8. 8CP

    Hi HN! 2d spritesheets for game development are often distributed as a PNG image, sometimes with a separate JSON or XML metadata document describing the layout, including any animation sequences within the sheet. Sometimes there is no metadata document and you have to work it out and manually write custom code to chop up the spritesheet and reference the sprites you want. I think it would be good if it became standard practice to distribute spritesheet PNGs with the metadata inline inside a PNG "chunk" so the whole thing is self-contained. That way artists can just distribute one file, and…

    2019 · mccormick.cx · its alternatives →

  9. 9

    Friendly web-based IDE for making HTML5 games

    2021 · phasereditor2d.com · its alternatives →

  10. 10

    We’ve been building GladeKit, an AI agent for Unity game development that works directly inside the editor. Instead of just generating code, it reads the actual project state: scene hierarchy, scripts, selected objects, component values, installed packages, and compiler errors - then takes actions inside Unity. What it does today: - 150+ native Unity actions (create prefabs, wire components, configure Animator Controllers, build UI, set up physics, lighting, and NavMeshes) - Reads real editor context before taking action - Project-aware modes for Agent, Debug, and Ask workflows -…

    Apr 2026 · gladekit.com · its alternatives →

  11. 11IB

    I've been working on an MMORPG that is now in alpha as a solo developer. Here are the major open source technologies that I use: Blender - 3D modeling software for creating the overall environment and every game object. I've gotten a lot of CC and Public Domain assets from https://poly.pizza GLTF - I export assets from blender to the GLTF asset format JSON - I write a JSON config for every game object that describes things like its name, its interactions, its collisions, etc. Node.js exporter - I iterate over the environment and every asset to create a scene hierarchy. I use…

    2024 · alpha.reconquer.online · its alternatives →

  12. 12

    I open sourced my HTML5 multiplayer 3D voxel browser game engine.

    2023 · kevzettler.com · its alternatives →

  13. 13

    Docker container for Unity. Contribute to nenadg/docker-unity3d development by creating an account on GitHub.

    2017 · github.com · its alternatives →

  14. 14
    Fusion▲297

    One codebase for engineers, designers, PMs, and marketers. Everyone works from one source of truth, on brand and in code, with no handoffs to clean up.

    2025 · builder.io · its alternatives →

  15. 15

    With all the turmoil in the game engine world recently, I thought I'd quickly post to show progress on our game platform dotbigbang.com. It's a fully integrated game platform where the multiplayer game editor and games all run on the web. You can make multiplayer games and share them with just a link with no setup at all. Breakdown of major features here: https://twitter.com/bobbydigitales/status/152647067103481856... We have comprehensive docs at http://docs.dotbigbang.com and a cosy Discord server at https://dotbigbang.com/discord All…

    2023 · dotbigbang.com · its alternatives →

  16. 16CA

    I usually build web games in C++, but using Emscripten always felt like overkill for what I was doing. I don't need full POSIX emulation or a massive standard library just to render some stuff to a canvas and handle basic UI. The main thing I wanted to solve was the JS/WASM interop bottleneck. Instead of using the standard glue code for every call, I moved everything to a Shared Memory architecture using Command and Event buffers. The way it works is that I batch all the instructions in WASM and then just send a single "flush" signal to JS. The JS side then reads everything directly out…

    Jan 2026 · its alternatives →

  17. 17

    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

    Mar 2026 · github.com · its alternatives →

  18. 18

    Render multiple moving rectangles to compare a number of canvas engines.

    2020 · benchmarks.slaylines.io · its alternatives →

  19. 19

    A top-down 2d game engine, written from scratch in under 1000 lines of C. Development of the game based on this engine is streamed on Twitch: https://www.twitch.tv/ryanpcmcquen - ryanpcmcquen/basque

    2020 · github.com · its alternatives →

  20. 20

    Hi all This has been my hobby project for quite a few years now It started as a small engine to serve as a sandbox to try out new 3d graphics ideas After adding many features through out the years and re-writing the entire engine a few times, this is the latest state It currently supports loading models with animations, textures, lights, shadow maps, normal maps, and some other goodies I've also recently added voxel raymarching as an alternative renderer, along with a fun physics simulation :)

    2024 · github.com · its alternatives →

  21. 21

    A WebAssembly runtime embedded in Godot game engine projects. Interact with Wasm modules from GDScript. Accessing Wasm modules via GDScript provides the following benefits. - Sandboxed environment allows safely loading zero-trust mods/extensions to a project. - Single target means that Wasm modules can be built from any language e.g. Rust, Go, AssemblyScript and the single binary can be run on all platforms. - Fast execution compared to GDScript allows for offloading compute-heavy operations or running bots/mods/etc. at high FPS. This might be useful for loading mods, bot AI,…

    2023 · github.com · its alternatives →

  22. 22

    A retro game engine for Python. Contribute to kitao/pyxel development by creating an account on GitHub.

    19d ago · github.com · its alternatives →

  23. 23

    I've spent 30 years making games as both a hobby and profession, working with Unity, Unreal, GameMaker, RPG Maker, Ren'Py, Godot, and many others. A few years ago, I attended a game dev meetup and met dozens of people with incredible passion for making games – but they were struggling because they lacked technical knowledge. That's when I decided to build a tool that anyone could use to create games. I started developing this as a side project, eventually raised ~$100K through crowdfunding in Korea, then secured ~$200K in angel investment. I assembled a team, and we've been building this…

    Oct 2025 · play-maker.io · its alternatives →

  24. 24

    Write and execute code in an intuitive "shell" with autocompletion, for the Unity Editor. - GitHub - marijnz/unity-shell: Write and execute code in an intuitive "shell" with autocompletion, for the Unity Editor.

    2018 · github.com · its alternatives →

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