Castle Builder™

Castle Builder™ by Rabcat Gambling is a five-reel online slot with 25 paylines and an RTP of 96.47%. The game uses a level-based structure set in a medieval fantasy world, where players collect construction material symbols to progress through three kingdoms and complete a total of 10 castles in each one.

As the castles grow, the building requirements increase, with each new stage demanding more materials. When a castle is finished, a bonus sequence follows in which the king’s daughter chooses among three admirers, each linked to a different win level: small, medium or high. The game also awards achievements, higher ranks and service medals as milestones are reached.

This Castle Builder™ demo version is available to play for free, allowing users to practice before playing for real money. The slot runs on a five-reel format with bets from 0.01 to 50, and after the kingdoms are completed and the highest rank is reached, the game continues in an endless mode.