Extremely difficult, old school point-and-click mystery/horror adventure puzzler, that's only worth playing by using a guide (there's a really good one available). Corrosion feels very outdated, it came out in 2015 but it feels like a 90s point-and-click game. Personally I actually kind of like it, but it's tough to sell this kind of game to players in 2024.

The game is hard for all the wrong reasons:
- You can only move by clicking arrows on your screen
- You can only access items through certain angles while you see them clearly from clearer/other angles
- Puzzles range from obscure to outright nonsensical
- Items clog your inventory and some of them stay there forever while useless (of course you don't know which until you finish the game)
- Random doors unlock after certain actions/events without you ever knowing which ones and when
- You are often left clueless about to do next

In short, without a guide you will definitely get stuck very often, without having a clue about what to do next, how, or why. This ruins the experience, because there are positive aspects to the game but those can't compensate for the frustrating movement and absurd puzzles.

I willed myself to the end of the game using a guide, because I really liked the claustrophobic, cold and eerie atmosphere (graphics are cool, background music is fitting, audio logs are nicely done and journals are creepy), and although the story is far-fetched and kinda ridiculous, I liked it and wanted to see how it all ends.

If the mystery is appealing to you, if you can get past the clunky and frustrating navigation mechanic and if you use a guide to get through the numerous nonsensical puzzles, then you could give this a try, since the asking price is pretty low. Still, too many 'ifs' to really recommend this, although I do value story and atmosphere and the game really shines in those departments.