WOMBO!

It’s an action roguelike / horde survivor where the main mechanic is that rather than acquiring permanent upgrades over the run, you equip temporary powerups that affect your gun’s stats. Each powerup can only be used ONCE, so it’s important to plan ahead while also considering what you’ll need to use to stay alive.
The powerups only last a short time, but their time can be extended through the other core mechanic: COMBO. Killing enemies in a chain increases your combo, and based on how many powerups you have equipped and how powerful they are, you’ll get time back on all of them. This rewards experimenting and making powerful builds, while weaker ones are quickly brought to an end.
Every 5 waves, you gain one new combo slot, allowing for more powerful combos.

Controls:
WASD/ Left stick - move
Mouse / Right stick - aim
Click / Right trigger - shoot
Q / Top button (Y on xbox) - discard current powerups
Ctrl / Press right stick - Toggle auto aim