A game called Paint Chips, which is currently free-to-play, will transition to a paid game on 1st October (exact time unclear).
If you grab the game before 1st October, you can keep that copy for free forever.
Paint Chips is a free-to-play online 2D multiplayer top-down shooter where you splatter your foes with paint! Unlock character customization options as you play and choose a look that suits your style. You can go solo or group up with your friends and paint it up together!