Arch

The premium Open Source alternative to Unity DOTS

🎯 Best for:Developers needing to process hundreds of thousands of entities per frame.
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Apache-2.0License

What is Arch?

A data-oriented alternative to object-oriented programming for C# developers, focusing on archetype-based memory layout. It enables massive multithreaded simulations by organizing data into contiguous chunks for CPU cache optimization.

Tech Stack
C#Game Development

Why Arch?

  • Extreme cache efficiency
  • No engine lock-in
  • Low allocation/GC pressure

Limitations

  • Steep architectural shift
  • Boilerplate heavy
  • Smaller community than Unity DOTS
3/5/2026
Last Update
157
Forks
35
Issues
Apache-2.0
License
Financial Leak Detected

Stop the "SaaS Tax"

Your team could be burning cash. Switching to Arch instantly boosts your runway.

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

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