No revenue estimate for GOG — its rating/review counts don't calibrate to sales the way Steam's do. Reviews and prices only.

Flipon

Flipon is a juicy and fun arcade puzzle game full of surprises!  Mine flipoblocks by aligning them to make combos, solve puzzles and defeat the (cute) bad guys!  STORY Join Kat and her crew of flipoblock miners in an epic quest in the Flipon solar system!  Embark your ship and visit 75 differents levels though 5 planets. But beware, each planet is owned by a powerful guardian and each level is a new challenge.  FEATURES CAMPAIGN: 75 levels mixing 5 game modes: objectives, survival, boss fights, puzzles and challenges!  SCORE ATTACK: an infinite scoring mode with online leaderboards  CHALLENGE: a procedural puzzle generator  VERSUS: local multiplayer fights, up to 4 players!  POWERS: discover and use wisely 6 different powers during your fights!