Thank you for the info. ;)
Cube MetalHeart 2 - Combat Squared
A downloadable game for Windows, macOS, and Linux
Cube MetalHeart is back! Get ready for an intense battle experience featuring Tesseract Engine! 3 new game modes dedicated to advanced FPS players. 24 maps in different themes all optimized for Tesseract Engine and stunning Drum & Bass and Dubstep soundtrack by UK's xKore!
As of 12th April 2021, the online servers are discontinued
Mac version requires XQuartz