Treat the worlds as a network
Steam confirms four handcrafted worlds, free exploration, and the ability to revisit places. It also describes puzzles as interconnected. The safest approach is to record where a clue appears and what other areas it might relate to, rather than assuming every world is a separate chapter.
The official page does not provide a complete route map. This guide therefore avoids naming a required order or claiming that a particular puzzle gates progression.
When to revisit
Return when you have a new observation, character, or puzzle rule to test. Revisit with a question in mind—such as whether a symbol, color, shape, or object appears elsewhere—instead of repeating every room at random.
Mark areas as ‘unexplored’, ‘understood’, or ‘revisit with clue’. This simple list can reduce backtracking without turning exploration into a checklist of invented objectives.
Official source: Steam — Order of the Sinking Star