Slipface
A free browser-based off-road racing game where the terrain is simulated in real time: truck wheels dig ruts into sand that persist on later laps, and up to nine AI rivals carve the line you have to follow. It includes seven tracks, sixteen vehicles, a demolition derby, leaderboards and an in-browser level editor. WebGPU is required (recent Chrome/Edge, or Safari on current macOS/iOS), no download or sign-up.