If you only see a video for vampire survivors, I think the tiny art style doesn't do a good job of showing how chaotic and fun the game is. You play as one of four fighters and move around an open area with a top-down view. The game is clearly based on Castlevania. There are no attack buttons because everything is done automatically. All you have to do is move around and hope that your weapon hits one of the many zombies that come at you in groups. And I mean waves.