Deep Rock Galactic is better than any triple A title nowadays, so why not get it? It's an awesome co-op game where you play as dwarves and kill bugs and mine minerals.

Very fun and grindy game.

Really fun co-op game to play with your friends!

Dishonored 2 is not as good as the first Dishonored in terms of story, but its combat system is better compared to its predecessor

The binding of Isaac can be seen as difficult for beginners, but once you start to learn about it's multiple items and enemies, it becomes a lot more fun.

Really fun and competitive.

Team Fortress 2, with its art style, humor, nine characters versatile in their own ways, and a wide variety of gamemodes and weapons, along with an active playerbase, is still fun despite its age.