Storywise, I’m surprised this turned out to be a vigilante story. Junkies killed your older brother, and now you and your mysterious Accomplice are out for revenge.
The game has all the aesthetics of Hotline Miami, with hard-top-down view, but most of the mechanics from Splinter Cell: light indicator, noise indicator, five move speeds, night vision goggles.
The enemies are also very aware of their surroundings. Leave a door open, and they’ll investigate. Try to close a door while you block it, though, and it won’t. So you end up learning very quickly to close the doors carefully.
You also get to choose from three types of armor, and in general, the more stuff you carry, the more noisy you are, and the slower you move.