It has a bit of resemblance, in that it’s a dark fantasy action game in which the player character fights a very large number of enemy units in order to level up and increase their power while fighting bosses interspersed throughout, occasionally upgrading abilities and acquiring gear. and of course the art style is directly cribbing Diablo 1.

But in the nitty gritty of how the combat works, how the gear and abilities work, the format of the levels and win condition of the game and pretty much everything else, it’s very different from Diablo.