These are some games I know about (games that I have played, games that I can recommend)
And these are some games that I think multiple people would want
I know Terraria is a great game, which you can buy in a 4-pack. (so if there’s a sale, terraria is very cheap)
Risk of Rain also proves to be a very nice game, with the same situation as Terraria.
Deathspank is a great, funny, yet old game.
Shank is a game about a man who loses his wife and has to fight to get her back, a beat-em-up like gameplay style with variation in fighting and satisfying bosses.
Duckgame is a great co-op game loved by many, but the problem is that not as much people have it.
(To play online mode and such)
Starbound and Stardew valley are quite popular, people would still like those games as well.