Life & fun · alternatives · 2026
24 alternatives to ST World Engine
Player-created Virtual World
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. ST World Engine launched in 2022; newer entries below may have overtaken it.
- 1
I open sourced my HTML5 multiplayer 3D voxel browser game engine.
2023 · kevzettler.com · its alternatives →
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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 →
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Hi HN community! We want to share AI-town, a deployable starter kit for building and customizing your own version of AI simulation - a virtual town where AI characters live, chat and socialize. Inspired by great work from the Stanford Generative Agent paper (https://arxiv.org/abs/2304.03442). A few features: - Includes a convex.dev backed server-side game engine that handles global state - Multiplayer ready. Deployment ready - 100% Typescript - Easily customizable. You can fork it, change character memories, add new sprites/tiles and you have a custom AI simulation…
2023 · github.com · its alternatives →
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A social creator platform & true sandbox style creator tools
2023 · worldsbeyondnft.com · its alternatives →
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SIMA 2▲204Google's most capable AI agent for virtual 3D worlds
Nov 2025 · deepmind.google · its alternatives →
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toy is a thin and modular c++ game engine that also runs on the web.
2018 · hugoam.github.io · its alternatives →
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HunyuanWorld 1.0▲145From a word or image to an explorable 3D scene
2025 · 3d-models.hunyuan.tencent.com · its alternatives →
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Unreal Engine 5▲316New imaging technology Transforms Movies Into Video Games
2022 · unrealengine.com · its alternatives →
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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 →
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Virtuall.PRO▲156Bring your 3D projects to life, faster than ever
2025 · virtuall.pro · its alternatives →
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An engine for easily creating virtual worlds. Contribute to Net5F/AmalgamEngine development by creating an account on GitHub.
2022 · github.com · its alternatives →
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Easily create 3D models in virtual reality
2017 · arvr.google.com · its alternatives →
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Exists▲132Generate your own 3D worlds and team-deathmatch in minutes
2025 · exists.ai · its alternatives →
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Free Real-World Intelligence: Give Your AI Real-Time Access to the Physical World. Grassland lets developers give their software an API for accessing real life environments regardless of economic, geographic or political barriers.
2019 · grassland.network · its alternatives →
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Waypoint-1.5▲110Real-time generative worlds on everyday GPUs
Apr 2026 · over.world · its alternatives →
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Cryptovoxels▲73Voxel-based virtual world on the ethereum blockchain
2018 · voxels.com · its alternatives →
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- 24IM
I've posted this game here before, hopefully a repost is fine as the game has changed quite a bit (improved AI, improved mapeditor, much quicker gameplay, etc). Game is based on JavaScript/Canvas and WebSockets. On the browser side the map is pre-rendered (as a background image), just the mobile units/buildings and animations are dynamically rendered. The lobby server is made in node.js, but the game server is C++ for performance reasons (mainly the pathfinding). I found the C++ WebSocket libraries out there to be too difficult to use so I made my own based on the rfc. Overall I…
2022 · battle-of-flags.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →