Flats is a popular first person shooter game that just made its debut on the Amazon Fire TV and Fire TV Stick. The game features both singleplayer and online multiplayer modes. It’s cross-platform compatible, which means you can play against players on other devices like iOS, Android, and Windows phones. You can change game states at any time, so if you’re playing multiplayer and there aren’t interesting opponents, you can instantly switch to singlplayer to battle it out against the AI. Flats is compatible with all Fire TV models, including the Fire TV Stick, but does require a game controller to play. Best of all, the game is free.