Book of Demons is a deck-building hack and slash adventure game, where players can decide the length of quests. The game is the first installment of Return 2 Games - a series of original mid-core titles, inspired by the early golden days of PC gaming.Have only 5 minutes for a game? No problem! Book of Demons allows you to set the length of each quest, thanks to our Flexiscope™ system. It learns your way of playing and always gives you the best experience, making Book of Demons the first truly accessible hack & slash!