vkQuake is a Quake 1 port using Vulkan instead of OpenGL for rendering. It is based on the popular QuakeSpasm port and runs all mods compatible with it like Arcane Dimensions or In The Shadows. Compared to QuakeSpasm vkQuake also features a software Quake like underwater effect, has better color precision, generates mipmap for water surfaces at runtime and has native support for anti-aliasing and AF. Your video card must support the vulkan graphics API for this port to work. You can check video card compatibility here https://en.wikipedia.org/wiki/Vulkan_(API)#Compatibility vkQuake is only a game engine modification; you still need the original quake *.pak game files to play vkQuake. vkQuake is supported on x86_64 systems only.