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 $450K — a different platform, not this one.

Vaporum

Vaporum is a grid-based dungeon crawler RPG in an original steampunk setting, inspired by the genre classics. Stranded in the middle of an ocean, in front of a gigantic tower, the hero has to find out what the place is, what happened there, and most importantly, who he is.