Apparently UE5.5 has nanite for skeletal meshes now. The question is how performant will it be? He's getting like 25 fps, but that's on a laptop of unknown make, and with several dozen characters on screen. https://www.youtube.com/watch?v=-I1Y0s_tZa0
Is Audiosurf still available? Unfortunately, all I have to give away is 25% off Valve and 25% off DeepSilver. Steam: http://steamcommunity.com/id/Vercinger