>>714284530It's hard to articulate without telling you to just go play it, but the quick summary is that if SRB2Kart is just "faster Mario Kart" (by default, without gameplay mods) then Ring Racers is its own fucked up 3rd thing that doesn't really play like any other Kart Racer out there.
Also, unlike SRB2K, it has a solid singleplayer mode.
>>714284609It started as an update for SRB2K and then they separated it into its own game when it got too weird. It's also allegedly getting voice chat in an upcoming update, which is pretty funny.