Forever Skies 1.4.2 is the first version where I can honestly tell a Linux gamer, "Buy it. It works." The dust clouds of the broken Earth are unforgiving, but your operating system doesn't have to be.
Install wine-ge-custom from the AUR and set VKD3D_CONFIG=dxr11 for the best ray tracing performance on AMD cards.
Here is where the community magic happens. Out of the box, version 1.4.2 can stutter. Apply these tweaks:
Karya Umum 
Filsafat 
Agama 
Ilmu-ilmu Sosial 
Bahasa 
Ilmu-ilmu Murni 
Ilmu-ilmu Terapan 
Kesenian, Hiburan, dan Olahraga 
Kesusastraan 
Geografi dan Sejarah