Rainbow Train is a small independent developer focused on compact, idea-driven mobile games. The studio’s portfolio—featuring HOOK, HOOK 2, Klocki, No.9, PUSH and Up Left Out—leans heavily on minimalist presentation and tightly designed puzzle mechanics. Rather than rely on flashy graphics or complex systems, Rainbow Train explores how a single elegant rule or interaction can create deep, satisfying gameplay.
Their work favors clarity and restraint: levels and visuals are pared back so that gameplay ideas take center stage. Several titles, including the original HOOK and its follow-up, have found an audience among players who enjoy short, carefully tuned puzzles that respect the player’s time. With six apps available on our site, Rainbow Train has built a consistent identity around thoughtful level design and deliberate pacing.
If you want to reach them for support or partnership, Rainbow Train lists contact via [email protected] and maintains information and links at https://www.rainbowtrain.eu/. The studio’s catalog is a useful case study for designers interested in how constraints—limited controls, simple aesthetics—can be used to produce memorable interactions in mobile games.
