I just finished Signalis, which was recommended by a friend. Overall, I enjoyed it and thought it was well made. The atmosphere and aesthetics are cool, though by the time I finished the game I had little idea of what was actually happening anymore. Very intentional, and I'm sure there are dozens of YouTube videos analyzing it.
The only thing I really disliked is the inventory system. And by disliked, I mean hated. You can only carry 6 items at a time, and you cannot drop things. That means that very frequently you'll find yourself in a room with a key item and no way to pick it up. You then have to either destroy ammo, which is pretty scarce and thus a bad idea, or you have to run back to the save point to dump stuff in your safe box. Oh, and you have to hope that no enemies come back to life in the process. The flashlight you get takes up an inventory spot too, and after you get it you need it frequently enough that you never want to put it away, so you sort of have 5 slots. Since ammo is rare and enemies can be tough, I usually carried 2 guns and ammo for them. 2 guns + ammo + flashlight is 5 slots, leaving just 1 for key items or a healing item. Thankfully, the healing items are pretty generously scattered around and you're fairly tough yourself, so I eventually learned to just not carry them with me.
The limited inventory capacity means the game asks you if you're sure you want to pick something up before you do. I eventually learned to not pick up most of the healing items I found because I'd be stuck with no way to pick up a keycard, but this has a side effect: you can't just grab stuff while running away from enemies. A few times there are items on tables that you'd like to just grab and run, since fighting is bad whenever you can avoid it. But... the game pops up a modal window asking if you're sure you want to grab a thing, while it is not paused, meaning you frequently take a hit before you can confirm or cancel. My personal best was 3 hits from this. The final boss fight was more than a little frustrating because of this.