Hello!
Slumberer's Universe is now available on MacOS 11+, with native Apple Silicon builds!
MacOS builds used to exist on the demo version, but were later removed due to the lack of testing support. However, the game has now been tested again on MacOS. Due to Apple's way of handling applications, the game will only be released on Steam, at least for now. Also, the MacOS build has been updated to run natively on Apple Silicon chips (M1 onwards), instead of the older x86 builds.
There is no difference compared to the Windows / Linux versions.
Thanks once again and if you are on a Mac, then please try Slumberer's Universe out!