BRUTAL game framework goes source-available
Ahwoo and RocketWerkz published the C# framework's source code under a custom licence with attribution and no royalties.
Ahwoo and RocketWerkz released the source code of the BRUTAL C# framework as source-available software on October 16, 2026. The framework is published under a custom licence that requires attribution.
BRUTAL is free to use and carries no royalties, but it is not open source. GamingOnLinux reported the release.
The framework currently powers six game projects across three studios. Among them is RocketWerkz's Kitten Space Agency, and the studio is also using BRUTAL for Art of the Rail and Torpedia, both in development.
Felipe Falanghe, creator of Kerbal Space Program, is using BRUTAL for his next game. Dean Hall is founder and CEO of both Ahwoo and RocketWerkz, while Rian Drake is Head of Engineering of BRUTAL at Ahwoo.
Engine changes elsewhere
In separate context, RimWorld recently moved off Unity to its own engine, Waylith. Kitten Space Agency won the Most Innovative Hi-Tech Creative Technology Solution at the 2026 NZ Hi-Tech Awards.
Quick answers
Is BRUTAL open source?
No. BRUTAL is source-available under a custom licence requiring attribution, and it is free to use with no royalties.
Which games use BRUTAL?
The framework powers six projects across three studios, including Kitten Space Agency, Art of the Rail and Torpedia, plus Felipe Falanghe's next game.