make the levelling system go backwards
so you start off at some absurd number of exp at level 99
and you work your way up, getting progressively less and less exp from enemies, which LOWERS your exp score, until the final hardest mobs in the game give you 1, and you have to kill 1000 of them to get to the hallowed level 1.
so you start off at some absurd number of exp at level 99
and you work your way up, getting progressively less and less exp from enemies, which LOWERS your exp score, until the final hardest mobs in the game give you 1, and you have to kill 1000 of them to get to the hallowed level 1.