u/Funny-Fig8307

Premise: Sinkholes appeared all over the world and you had to go down floors. Guy became a defender or tank or something and beat it but the rest of his party died so he wasn’t able to beat the final boss because he was a tank, no dmg. He regresses and proceeds to get all three of the major gods as sponsors; god of time, death, and something else I think. He also breaks every record for every floor and just becomes a Mary Stu, but that’s pretty much every tower/dungeon slop novel. So if anyone can remember what this is I’d appreciate it.