Ceville, the tyrant ruler of the fairyland Faeryanis, had a great day until rebels decided to finally end his tyranny and surrounded his castle. As Ceville tries to escape the castle, he finds out that Basilius, his former right hand, is the real enemy who wants to take over the throne and rule the land with daemonic help. In the end Ceville is overwhelmed by the rebel forces in an unfortunate turn of events and send to prison where he meets the little girl Lilly who decides to help Ceville get his throne back - or at least that's what Ceville thinks.
Ceville is a classic Point & Click-Adventure in a fully 3D-environment. Every action is accomplished by using the context-sensitive mouse pointer. This way the characters pick up items, interact with the backgrounds and talk with many different characters in humorous multiple-choice dialogues in order to solve the many riddles that otherwise prevent the story from moving on. To help the player find every clue and item to solve the countless riddles, a key press shows every hotspot in the room and as an additional, disengageable help the pop-up-text turns orange if a currently selected item can be used with the item on screen the cursor is currently pointing at.
During the course of the game the player will not only take over the control of Ceville, but also over Ambrosius and Lilly - often even over all three at the same time to overcome some of the obstacles in their way. Similar to Maniac Mansion: Day of the Tentacle, the player can switch between all the characters at any time.