RHEM IV takes you into a huge, fantastic world full of strange vehicles and buildings, secret passages and doorways. A sense of adventure, logic, attentiveness and the ability to solve puzzles will help the player to slowly but surely unveil the mystery of this latest adventure on the island RHEM. Features: - Non linear gameplay: a fascinating world full of riddles and enigmas - an abundance of exciting secret rooms and hidden paths - new „album“ feature allowing you to collect and use hints - family friendly and non-violent gameplay - color picker feature allowing the color-blind to solve puzzles - SE edition features several unseen areas