Two rival tribes, the cannibalistic Udam and the fire-worshipping Izlia, are your antagonists.
Motion blur and post FX can be disabled if your FPS is low. Settings Textures, shadows, geometry, terrain, and water are all adjustable, and you can choose between FXAA or SMAA anti-aliasing. Performance With a GTX 970, 16GB of RAM, and an i5 CPU clocked at 3.40GHz I got a steady 60FPS at 1440p on max settings, with the occasional dip to 40-50 when things got really busy.