head to head · open source
azerothcore-wotlk vs colyseus
azerothcore-wotlk has 9,142 GitHub stars, 3,943 forks, 2,445 open issues and last shipped yesterday. colyseus has 7,511 stars, 683 forks, 19 open issues and last shipped yesterday. azerothcore-wotlk leads on adoption by 22% (9,142 vs 7,511 stars). azerothcore-wotlk is written in C++ under GPL-2.0; colyseus is written in TypeScript under MIT. azerothcore-wotlk has attracted 43% as many forks as stars, colyseus 9%. 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.
← all 20902 open source comparisons
Side by side
| azerothcore-wotlk | colyseus | |
|---|---|---|
| GitHub stars | ★ 9.1K | ★ 7.5K |
| License | GPL-2.0 | MIT |
| Written in | C++ | TypeScript |
| Last push | 2026-11-04 | 2026-11-04 |
| Forks | ⑂ 3.9K | ⑂ 683 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick azerothcore-wotlk if
- You weight community size — 9.1K stars and counting
- You want the GPL-2.0 license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick colyseus if
- You want the colyseus feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and colyseus fits your workflow better
About azerothcore-wotlk
AzerothCore Build Status Introduction AzerothCore is an open source game server application and framework designed for hosting massively multiplayer online role playing games (MMORPGs). It is based on the popular MMORPG World of Warcraft (WoW) and seeks to recreate the gameplay experience of the original game from patch 3.3.5a. The original code is based on MaNGOS, TrinityCore, and SunwellCore and has since then had extensive development to improve stability, in game mechanics, and modularity to the game. AC has also grown into a community driven project with a significant number of contributors and developers…
read the full azerothcore-wotlk overview →
About colyseus
Multiplayer Framework for Node.js. View documentation Colyseus is an Authoritative Multiplayer Framework for Node.js, with SDKs available for all major platforms and engines. Client SDKs The project focuses on providing synchronizable data structures for realtime and turn based games, matchmaking, and ease of usage both on the server side and client side. The mission of the framework is to be a standard netcode & matchmaking solution for any kind of project you can think of! Why developers choose Colyseus: ⚡️ Real time state sync that just works → Define your state on the server and it automatically synchronizes…
read the full colyseus overview →
More in Miscellaneous
Related comparisons
More Gaming projects
Compare either of these against the rest of the Gaming field.
Frequently asked questions
Is azerothcore-wotlk or colyseus more popular?
azerothcore-wotlk has 9,142 GitHub stars and colyseus has 7,511. azerothcore-wotlk has the larger community by that measure.
Are azerothcore-wotlk and colyseus free?
Both are open source. azerothcore-wotlk is licensed under GPL-2.0 and colyseus under MIT. Neither carries a licence fee.
What is the difference between azerothcore-wotlk and colyseus?
azerothcore-wotlk is written in C++ and colyseus in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, azerothcore-wotlk or colyseus?
Choose azerothcore-wotlk if you want the larger community (9,142 stars) or its GPL-2.0 licence terms. Choose colyseus if its feature set, stack or MIT licence fits better. Both are self-hostable.