It has been a while since I played a game that sucked me in as much as Signalis has, but here I am to recommend it to everyone. If you are looking for a classic survival horror game in the same vein as OG Resident Evil and Silent Hill, then you really need to play it.
Stylistically it is very much inspired by Alien and Dead Space (taking place in a retro-futuristic space station conquered by eldritch horrors beyond our comprehension), with anime-inspired character designs reminiscent of Ergo Proxy and the style of Tsutomu Nihei (the Blame!/Biomega/Knights of Sidonia guy), all presented through the heavily pixelated character models and backgrounds of PS1-era graphics.
Again, gameplay is very reminiscent of RE's 'search all the rooms and get keys to other rooms while solving puzzles and fighting/avoiding enemies with a limited amount of resources' formula. The enemies and later environments are shameless SH rip-offs in the best way possible (the way being 'ewww the fuck is that get it away from me'). Puzzles are really creative and engaging and all the guns are really satisfying to use.
The story is very Lynchian and Silent Hill-esque in that it is very dreamlike and conveyed through several disjointed perspectives and flashbacks, as well as cryptic scenes of jumbled (but still decypherable) information. It gives you enough to piece together the most important, character-related aspects of the story (when you get to the ending, at least the one I got, the emotional gut punch really hits), but it leaves enough open to interpretation so that not everythings is clear cut even after you're done with a first walkthrough. It is very much like NGE in that sense. The world building about the setting that you get through all the documents is also really interesting and worth reading through.
Overall, it's amazing. It's a case where a piece of media is unabashedly influenced by its predecesors, yet still manages to combine all those influences in a unique and inspired way, wrapping it all up in a tight, 9-hour package. Again, highly recommended.