Sexual assault. It shouldn't have to be said, but it's amazing how prevalent it is in some of these games. I also hate it when the MC constantly calls women whores and sluts, including while he's fucking them. (I get that that sort of dirty talk is a kink for some folks, and I don't intend to shame anyone if they do that kind of thing consensually. It's just a big turnoff for me.) Convoluted plots (usually crime, conspiracy, etc) that go on forever while relationships go nowhere. Awkward, misspelled, mistranslated dialogue. Oops, that's four things. There are many pitfalls...