After their story focused games, the team at Frictional Games went all-in on "systems-driven" gameplay and created this gem. Amnesia: The Bunker is a superbly crafted, stealth focused survival-horror mainly, with some immersive sim elements which promote emergent gameplay, experimenting, and great replayability. After their previous games this was a welcome surprise, and as an immersive sim fan, I loved every minute of it.
The graphics are servicable, it does a good job of presenting the atmospheric setting, but the sound design is outright excellent here as well, similarly to every other Frictional game. The addition of New Game + with added customizable difficulties and some new systems are a big bonus as well.
If you loved Alien: Isolation there is a higher chance you'll enjoy this, but even if you like stealth focused survival horrors in general, I'd recommend to give this one a try.

You are trapped in a hole filled with rats and corpses, holding only a hand-cranked flashlight and a revolver with one bullet, and there is something else with you in the dark.

The game smothers you in the tension of its premise immediately, and to much great effect than most horror movies I've seen of late, every aspect of presentation and the mechanics of gameplay conducive to keeping every minute, moment-to-moment, interaction seeped in that same dread.

Your controls are intentionally clunky and floaty, the physics of assets are deliberately designed to encourage careful movement when your haphzard steps can loudly jostle detritus, and every action you might need to take in dire circumstances - such as opening and locking a door, reloading a gun, throwing an object - requires a precise series of inputs that will be difficult to rush through in panic. You are very much made weak and clumsy and staggering as something much more adroit stalks you through crampt hallways, and barrels through the barricades you can assemble.

In all of that, there is a mastery of creating fear through how you're made to interface with the game that is really only comparable to games like Alien: Isolation, survival-horror where everything you *have* to do is loud and slow when quiet and quick keeps you the safest.

The game is not the longest, or the *most* obstructively difficult once you've stumbled through the basics and figure out your objectives, nor especially withholding of tools (on the 'Normal' difficulty anyway - 'Hard' seems much more like the intended experience in terms of scarcity of items and the omnipresent threat of the beast that stalks you the entire runtime); but the atmosphere is impeccable throughout, undeniably honed despite the comparatively small scale and budget afforded to the devs.

whack a mole had enough and hunt you down instead