No revenue estimate for EPIC — its rating/review counts don't calibrate to sales the way Steam's do. The Steam version is estimated at $5.8M — a different platform, not this one.

Unrailed!

Unrailed! is a co-op multiplayer game where you have to work together with your friends to build a train track across endless procedurally generated worlds. Master random encounters with its inhabitants, upgrade your train and keep it from derailing!