A difficult open world puzzle game about plumbing.
The core gameplay revolves around manipulating pipes to connect water sources to outlets. Unlike traditional Sokoban-style puzzlers, players must carefully plan how to push and rotate the pipes in three dimensions to get the water flowing properly. This adds a significant layer of complexity compared to sliding blocks around on a flat plane.
The difficulty progressively ramps up as the game introduces new elements. Early puzzles focus on basic pipe-pushing mechanics, but later ones require mastering abilities like rotating pipes with buttons, positioning them in underground sections, and aligning magnetically-connected pieces. Many reviewers note that while initial levels can be solved through trial-and-error, the later ones demand careful planning and spatial reasoning to overcome.
As players work through the increasingly complex challenges, they encounter a wide variety of puzzle mechanics that build upon the core pipe-pushing. Reviewers praise the ingenuity of these new additions, which force them to continuously adapt their strategies and think outside the box.
Rather than presenting puzzles linearly, the game organizes its levels into an open-world island setting. Players can freely explore and tackle challenges in whatever order they choose, with difficulty indicators providing guidance. This non-linear structure allows them to take breaks from particularly difficult puzzles and come back to them later with fresh perspectives.
Many reviewers highlight the profound sense of progression and mastery they felt as they worked through the game's intricate challenges. What starts off deceptively simple quickly evolves, forcing players to learn how to manipulate the pipes in three dimensions. Overcoming seemingly impossible puzzles and experiencing "aha" moments of discovery is cited as a major source of enjoyment.