Prismwright

Prismwright is a grid puzzle about light. Emitters fire beams, and you place the optics: mirrors bend them, splitters fork them, filters let only one colour through, combiners mix red, green and blue, prisms fan white light into colour, and portals send a beam across the board. Light every target in the right colour, avoid the mines, and find the clever route to the bonus crystal for the third star.

Two campaigns and 24 painted worlds introduce one idea at a time, from crystal caverns to the heart of a nebula. Campaign II adds ten new mechanics: bounce-back mirrors, scatter crystals, fibre cables, pulsing emitters and burnables, switches, bombs and balloons, rotating and sliding mirrors, Precision move limits and labyrinth chapters.

Every level proven solvable

A solver checks every level: each one has a single intended solution and an “aha”, and the obvious greedy route never works. Alongside the campaigns, a new puzzle arrives every day, with the new mechanics at weekends, and Infinite mode keeps generating harder ones. No timers, no lives, no ads.