head to head · open source
three.js vs OpenRA
three.js has 115,727 GitHub stars, 36,557 forks, 386 open issues and last shipped today. OpenRA has 17,408 stars, 3,048 forks, 1,598 open issues and last shipped 8 days ago. three.js leads on adoption by 565% (115,727 vs 17,408 stars). three.js is written in JavaScript under MIT; OpenRA is written in C# under GPL-3.0. three.js has attracted 32% as many forks as stars, OpenRA 18%. three.js was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| three.js | OpenRA | |
|---|---|---|
| GitHub stars | ★ 116K | ★ 17K |
| License | MIT | GPL-3.0 |
| Written in | JavaScript | C# |
| Last push | 2026-09-22 | 2026-09-14 |
| Forks | ⑂ 37K | ⑂ 3.0K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick three.js if
- You weight community size — 116K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick OpenRA if
- You want the OpenRA feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches C#
- You evaluated both and OpenRA fits your workflow better
About three.js
three.js is an MIT licensed JavaScript 3D library that provides an easy to use, lightweight, cross browser, general purpose layer for rendering interactive 3D graphics in the browser, aimed at JavaScript developers who need 3D scenes on the web without writing raw GPU code.
read the full three.js overview →
About OpenRA
OpenRA is a libre, free and open source real time strategy game engine written in C with SDL and OpenGL, built for players, mappers and modders who want to run and extend early Westwood classics such as Command & Conquer: Red Alert, Command & Conquer: Tiberian Dawn and Dune 2000 on Windows, Linux, BSD and Mac OS X.
read the full OpenRA overview →
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Frequently asked questions
Is three.js or OpenRA more popular?
three.js has 115,727 GitHub stars and OpenRA has 17,408. three.js has the larger community by that measure.
Are three.js and OpenRA free?
Both are open source. three.js is licensed under MIT and OpenRA under GPL-3.0. Neither carries a licence fee.
What is the difference between three.js and OpenRA?
three.js is written in JavaScript and OpenRA in C#. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, three.js or OpenRA?
Choose three.js if you want the larger community (115,727 stars) or its MIT licence terms. Choose OpenRA if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.