I like Garry's Mod because it allows the player to build anything they want and share it with everyone and even download mods and play with them.
I like Team Fortress 2 because it is a game of two teams fighting for victory. You fight against other players and try to win the fight.
I like Crossout because it is a game where you can build your own car and fight other players in a post apocalyptic future and all the cars look like they came out of Mad Max.