This game uses an in-house engine by Avalanche Studios and the Linux release is a few days away from the Windows version. It’s likely that the port has been done in-house, or more precisely, it’s not a port and has been developed with multi-platform in mind from the start. If that’s the case then nice job!
Also, many people on twitter say that the game is very well optimised, hope that’s also the case with the Linux version.
