MC is a relic thief in a dungeon filled world, after a near-death experience he finds himself back in his past with all of his knowledge. Now he can become powerful and get revenge on those who had screwed him over. He's full of himself, but he knows the most about relics. Time-traveling to the day the very first dungeon appears may be the best thing that's ever happened to him.
MC gets a message from his missing twin brother. He died in a tower, literally stabbed in the back by the people he climbed the tower with. With his will, all of his memories and knowledge is given to his living brother in the real world. MC enters the tower and dominates, unlocking secret quests and such. MC is waiting for a chance to exact revenge and is biding his time, gaining power as a masked ranker-b/c he has the same face as his dead twin.
MC was best swordsman king in alternate world. reborn in a magic system world, is a magical prodigy + can use all types of magic. Watch him grow up and become more powerful.
MC lives in a world with dungeons and awakened ppl. He was a knight with the best group until they betrayed him during the final boss battle. He time travels to when he first awakened and chooses a different profession. My fav MC snarky, quick witted, and a little evil for good reason. Now he's out to get revenge.
Tomb Raider King