head to head · open source
colyseus vs zfoo
colyseus has 7,318 GitHub stars, 665 forks, 19 open issues and last shipped yesterday. zfoo has 2,015 stars, 415 forks, 19 open issues and last shipped 4 months ago. colyseus leads on adoption by 263% (7,318 vs 2,015 stars). colyseus is written in TypeScript under MIT; zfoo is written in Java under Apache-2.0. colyseus has attracted 9% as many forks as stars, zfoo 21%. colyseus was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (game-server), so they are genuine substitutes rather than adjacent tools.
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
| colyseus | zfoo | |
|---|---|---|
| GitHub stars | ★ 7.3K | ★ 2.0K |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | Java |
| Last push | 2026-09-24 | 2026-05-29 |
| Forks | ⑂ 665 | ⑂ 415 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick colyseus if
- You weight community size — 7.3K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick zfoo if
- You want the zfoo feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and zfoo fits your workflow better
About colyseus
Colyseus is an MIT licensed authoritative multiplayer framework for Node.js that provides synchronizable data structures, room based matchmaking, and client SDKs for TypeScript, React, Unity, Godot, GameMaker, Defold, Construct, Haxe, and C, aimed at developers building realtime and turn based multiplayer games.
read the full colyseus overview →
About zfoo
zfoo is an Apache 2.0 licensed Java server framework for RPC, game servers and web servers, aimed at teams that need very high throughput and want to keep server configuration small and simple.
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Frequently asked questions
Is colyseus or zfoo more popular?
colyseus has 7,318 GitHub stars and zfoo has 2,015. colyseus has the larger community by that measure.
Are colyseus and zfoo free?
Both are open source. colyseus is licensed under MIT and zfoo under Apache-2.0. Neither carries a licence fee.
What is the difference between colyseus and zfoo?
colyseus is written in TypeScript and zfoo in Java. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, colyseus or zfoo?
Choose colyseus if you want the larger community (7,318 stars) or its MIT licence terms. Choose zfoo if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.