Vampire Survivors, but free and the characters distinct. A later update added Holo House, a game mode I don't much care for.

Thanks to the fact that unlike in Vampire Survivors who start out with a predefined loadout you can randomly chance on as a character, in Holocure, each character has their own weapon which you can invest in and each weapon operates differently. You have Mumei and her homing feathers when they hit a target. You have Kronii who uses her clock swords to stab at the nearest enemy (and another one to stab at a random enemy).

The game falls apart at high level play, because the game is much easier when you ditch all the other weapon slots to limit rng and just invest in your starter weapon, plus a few combos which provide you heals or enemy slowdown.

Some combos are actively detrimental versus their base weapons too.

Then again, for the price of free, the game is incredibly polished. You won't lose anything but your time if you play this game.