>>299422476
Stand-alone game. Existing owners of regular Superhot should be getting a free couple in a couple days. I grabbed it during early access years ago since it was cheap and I needed a fix.

It's Superhot gameplay with randomly selected levels, with gameplay modifiers you can select, such as always starting with a katana, having an extra hit (normally 3 hits and you have to restart your overall progression on that series of levels), richochet bullets, etc.