In this third installment in the popular RHEM series of intricate pure-puzzle first-person adventure games for PC and Mac, the adventures of brothers Kales and Zetais continue in the mysterious land of RHEM. Like its predecessors, RHEM 3 features non-linear gameplay, non-violent story, and mind-bending puzzles. Set in a labyrinthine world of hidden rooms and secret passages, strange vehicles and odd machines, RHEM 3 opens the door to a new journey of mystery and adventure. In search of a certain black gem, hints hidden in a secret library and clues offered by the peculiar inhabitants of RHEM will assist you in your quest. With an adventurous spirit, logical thinking, and keen puzzle-solving, you will slowly but surely divine the location of this curious treasure and unveil the secret it holds.