The very popular racing game Riptide GP2 has just gone free to celebrate the game’s 4 year aniversary. This game is normally $1.99 and has a great 4.5 star rating from over 1,000 reviews. The sequal to that game, Riptide GP: Renegade, is also celebrating the aniversary with a sale. Riptide GP: Renegade is normally $2.99 but is currently down to $0.99, which is the new lowest price it has ever been. Both of these games are compatible with all Fire TV devices except the 1st-gen Fire TV Stick. They are both playable with either a remote control or game controller.