flecs

The premium Open Source alternative to EnTT

🎯 Best for:Developers building custom engines or high-performance simulations
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What is flecs?

Replaces heavy game engine frameworks with a lightweight, zero-dependency ECS library. Implements a custom query language for efficient entity filtering and manipulation.

Tech Stack
CGame Development

Why flecs?

  • Minimal memory footprint
  • Extremely fast entity iteration
  • Built-in web dashboard for debugging

Limitations

  • Manual memory management
  • No built-in rendering
  • Requires deep ECS knowledge
3/5/2026
Last Update
582
Forks
39
Issues
Other
License
Financial Leak Detected

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Competitor Cost
-$1,440
/ year (est. based on EnTT)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%

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