For me the game was bugged, whenever I tried to pick a hero the screen would deform and not load any hero but still charge me money. Besides that, the atmosphere is excellent and the 3D art fits the narrative well.
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Interesting bug I can't be sure what caused it, you probably thought that the purchased hero immediately gets on the list of those who go to the dungeon however this is not the case and they need to be selected to go to the dungeon. If the model is not loading, it will probably throw an error about it in the console.