The main character Liber A young historian named Alex is introduced. He was studying the theoretical part in the library, where he accidentally came across a strange book. It was leather-bound and gave off an ancient feel. Opening it, he unexpectedly overcame space and time. The guy found himself in the time of the Vikings, who took him prisoner. A bearded cowboy named Nick helped him get out. As it turned out, he found exactly the same artifact when he robbed a stagecoach. Now the new comrades will have to go on a dangerous adventure to get out of trouble and return home.

During the passage of Liber, the user will have to visit many eras and worlds. In each of them, enemies and foes will be waiting. You will have to fight cannibals, Indians, knights. The character uses weapons typical of the time in which he found himself. The arsenal of techniques includes jumping and running. Sometimes you should climb steep rocks, quickly move around the territory. In addition, you can become invisible, which allows you to get through the guards. On the hike, the young man will be accompanied by a new friend. You can rely on him. Periodically, you will have to interact with the environment to get objects and things. They will help solve spatial and logical puzzles. For example, you need to rush on a boat along a seething river. From old manuscripts and notes, you can learn how to use a magic book. This will help return to your era.