I'm a little bit confused about desktop dungeons. Are there any permanent upgrades, or do I have to somehow get through all the game types using the base characters? Especially the snake pit seems completely impossible with weakened effect.
Maybe I'm totally missing something trivial but it took me huge amount of tries beat the normal mode with a fighter and since other classes can't see the positions of same or lower level enemies I have no idea how to beat the boss (while searching for suitable enemies I uncover the entire map and have no health recovery for the high level enemies).