I thought it might be a deep dive into psychology and dreams but its just a boring game, in my opinion. You have 4 different dream types which can "attack" your crew and you can defend against them. You have some Resource Management included because in the underground they are scarce, people get sick, you have to upgrade stuff/your defenses etc. Also some Politics involved because of Ideologies of your passengers. Maybe i didnt get the game but it just didnt catch me. It holds nice ideas, though.
The skill system: I played the so called battlemage and the skill choices are small and my playstyle was mostly pressing Magic missile and dodging. 4/10 Items: Nice with a lot of flavor text, set pieces and possible customization with charms and auras 9/10 Story and Dialogue: The overarching story was cliche and felt forced to me(why dialogue choices if the outcome is the same) though the dialogue is very well written(often goofy) and some side characters excel. 6/10 Music: Its good and sometimes very fitting though the engine made sometimes unpleasant switches 7/10 graphics: good, sometimes too shiny for my gusto 7/10 conclusion: i played the main game with the addone in one go because it was well reviewed here on gog. i was somewhat disappointed but its an ok game.also, the massive cliffhanger between the main game and the addon isnt a positive mark in my book, though i was unaffected.