What are some games you could spend hundreds of hours on? Some of my worthy mentions would be: Astroneer - A very different kind of a game. It is set in about a hundred years from now and focuses on space exploration. Especially fun with friends when you can fly together to different planets. Terraria - Well known already, but modding community is constantly creating amazing content that makes the game refreshing to play even to people like me who have spent 400hrs+ on the game. Subnautica - Plot is literally about exploring depths of the water. There's also a multiplayer mod coming out in december called Nitrox.