Silversphere

You guide the sphere across a board of colored tiles. Stepping on a tile changes its color, and you often need to cycle through a sequence to create a path or trigger a switch. Some tiles are one-way, others crumble after a single use. The challenge comes from figuring out the order of moves so you don't trap yourself. The pace is slow and thoughtful; a wrong move usually means restarting the level. It feels like working through a quiet, logical problem where every step has a consequence.