It's called Iji and it reminds me tremendously of Out of This World and Flashback (if you don't know those games, shame on you), except without the constant instant-death and memorization bits. Give it a whirl, I lost a good hour and a half to it without even noticing, just this morning. Also, side note, can we make links a leeeeetle more obvious, Intus? I have to keep underlining mine because the text colour difference is so minute.