I remember Quake, excellent FPS of the time with excellent graphics of the time, then glQuake happened and it became even better. Now thanks to Novum we have vkQuake! A totally vulkanized version based off of the QuakeSpasm sourceport. Someone made a video showcasing the OpenGL (QuakeSpasm) version vs the Vulkan version.
The Vulkan version sports a nice performance increase (not that you really need it for Quake in this day and age, but still very nice. 😛 ) and it has a nice sharper look to it. I may have to retire Darkplaces and switch to this version, which can be downloaded here.