If the ".exe" refers to a utility, it is most likely TFTactics, a popular desktop overlay program.

If you are looking for the game itself, it is a strategic "auto-battler" from Riot Games set in the League of Legends universe.

The game uses a "set" system, rotating champions and mechanics every few months to keep the strategy fresh. 2. TFTactics Companion App

Eight players compete in a round-based free-for-all. You draft champions, combine them to level up (up to 3 stars), and equip them with items.