free pc games that are actually good?

Those are all live service ones that eat hundreds of hours. For something you can actually finish: Doki Doki Literature Club, the first two chapters of Deltarune, and the original freeware Cave Story. Also keep an eye on the Epic store, it gives a game away every week and some are really good.

warframe, path of exile, dota 2, team fortress 2, rocket league, apex. what genre are you after though? that list is all over the place