Kairo

The Good
Everything I could name.

The Bad
Nothing I can think of.

The Bottom Line
Absolutely no one knows about this game and it's the best first-person game I've ever seen. Made by this one single English guy Richard Perrin. Exploration, architecture, puzzles, unfathomable alien beauty. The way the musical elements resonate against the visual ones is beyond belief. I don't know where else in life I've experienced depths like this. Some world lost for ever and beyond all hope of retrieving.

There are a few brief glimpses of some sort of a history buried in the game's more secret corners, but they're extremely cryptic and I still haven't been able to piece much of it together myself. Most of the puzzles are of pretty reasonable difficulty and a lot of them are quite easy, but there are a few exceptions. Fortunately there's a hint system you can consult.

Everyone in the entire world has to play this game.