toribash has a weird tendancy to crash when changing settings. mind crashes when i change it automatically to medium. there's no way to fix it, aside from updating or waiting for a patch.

if you want the maximum graphics, go to setup>options>Advanced, and tick everything there except remember game rules, lower frame rate cap, autosave replays, fullscreen, and disable graphic reloading. those are all just optional things. the most important toggle to tick is shaders, ray tracing, and soft shadows and ambient oculation.