Cocos Engine vs Retrom
A side-by-side comparison of two self-hosted game engines & frameworks options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Cocos Engine
Open-source cross-platform 2D and 3D game engine
VS
Retrom
Self-hosted game library server with launcher clients
| Feature | Cocos Engine | Retrom |
|---|---|---|
| Category | Game Engines & Frameworks | Game Engines & Frameworks |
| License | MIT | GPL-3.0 |
| Language | C++ | TypeScript |
| Setup difficulty | Medium | Medium |
| Min. RAM | 512 MB | 512 MB |
| Deployment | source, binary | docker, source |
| GitHub stars | ★ 9,735 | ★ 2,032 |
| First released | 2010 | 2024 |
| Replaces | Unity | Playnite, Steam library |
Why pick each one
Choose Cocos Engine if…
- Released under the MIT license
- Mature project with 9.7k GitHub stars
- Written in C++
- Lightweight — runs in 512 MB RAM
Frequently asked questions
Is Cocos Engine or Retrom better?
Neither is universally better. Cocos Engine has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Cocos Engine and Retrom free and open-source?
Yes. Cocos Engine is licensed under MIT and Retrom under GPL-3.0. Both can be self-hosted at no software cost.
Can I run Cocos Engine and Retrom with Docker?
Cocos Engine: check the project docs for container support. Retrom: yes.