I'd better give my own list soon! The following excellent games could use a mouthful of soap:
Resident Evil 2 (Remake): To answer Zero's question, RE has had the F-word since RE5 but RE7 really cranked it into overdrive (a little too much IMO). This makes for an especially tough question since the M-rated go-to GOAT for Nintendo fans is RE4, but Leon watches his mouth a little more in that one. Perhaps to avoid offending the president's daughter, or that little dude who runs the castle. Anyway, he's more of a sailor in RE2make and we get a few effers in here. Remake or not, I thought this was the best RE since RE4.
Resident Evil 4 (Remake): They may have taken out the ballistics line but they added in bombs of a different sort. RE4make is the best RE since RE2make which was the best RE since RE4 which itself was even better than the previous best RE game, RE2. You with me?
999 and
Virtue's Last Reward: I'm inclined to agree with NW's top sweary pick but 999 is no slouch either. The heavy language kind of enhances the dramatic, life-or-death scenarios in these games.
Danganronpa: Like Ace Attorney if everyone was super high-strung and tweaked out and murderous. Another great and intense game.
South Park: The Stick of Truth: The only game on this list that largely uses swearing for comedic purposes. This is an almost-great Paper Mario-like that is one of the best uses of a license I've seen. The late-game Canada section is a pitch-perfect blend of RPG and South Park. But there's plenty of colorful language to go around either way, your F-bombs can hang out with all their other friends.
Resident Evil Requiem: Hey, a newcomer! This one's an honorable mention since I think it's not quite there with the remakes, but it's a great time and there's plenty of moments for the main characters (and presumably the player) to fire off some salty cusses in fear.
All in all, it's kind of a toss-up between the two RE remakes and VLR. They're all pretty close.
@Secret_TunnelHaven't tried those but it's interesting that none of them quite reach greatness for you.
@ShadowlinkF****n Punch!