Ultrakill is a fast very violent retro shooting game. It's like the games that created this genre, Quake, Doom and the more recent Devil May Cry. You must use quick reactions to move and shoot before you yourself are shot. You can find weapons to help, but this is a game mainly focused on shooting prowess. If you get splattered in blood you regain health.

As you get more proficient at the shooting and movement you can rack up combos and gain points that can be used on weapon variations between missions. There are many levels to master. As you do you can work you way up the high score ranks and take on unique optional challenges.

There's also a varied campaign environments mode inspired by Dante's Inferno with many hidden secrets to find.