ReThink

A calm, minimalist laboratory setting turns laser-routing into a demanding series of logic problems in ReThink 3.5. Positioned between the third and fourth entries, it carries the deliberate, solitary mood the series is known for: clean architecture, glowing beams, and no distractions from the puzzle at hand. Each room asks players to read the available machinery, understand how its parts interact, and find the one sequence that opens the way forward. The tone is peaceful rather than oppressive, but the solutions can be satisfyingly exacting.

Players tackle more than 40 first-person chambers built around redirecting lasers and manipulating logical systems. Progress comes from observing beam paths, activating devices in the correct order, and learning how individual mechanisms combine into increasingly layered setups. Rather than relying on reflexes or combat, success depends on patience, spatial awareness, and the willingness to reconsider an assumption when a promising route fails. ReThink 3.5 also benefits from its Unreal Engine 5 rebuild, with smoother performance intended to make the experience more accessible on modest CPUs and graphics hardware without abandoning its crisp visual style.

Its strongest quality is the focused design: rooms are compact, readable, and constructed to test reasoning instead of burying players in an enormous world or a story-heavy campaign. The game introduces a feature distinct from the later installments, giving this recovered entry a reason to exist beyond simply filling a gap in the series timeline. Visual settings let it retain the restrained look of the earlier ReThink titles on lower presets while offering more polished lighting and detail on stronger systems. Fans of Portal’s environmental problem-solving or The Talos Principle’s laser-based challenges should feel at home, while series veterans get a worthwhile bridge between ReThink 3 and ReThink 4.