Unravel

Unravel is a puzzle game where you move blocks around to clear a path for the gem block to reach a gate key. Upon reaching the gate key, you collect gems while escaping the puzzle board. There are 25 Levels in the Windows version. it is 32bit so it should be able to play on all Windows version as well on Linux and Mac as long as you have Wine on those platforms.

Those familiar with the popular game  'Unblocked me' will recognise it uses the same mechanics. However, unlike being restricted to only Windows OS, you have the option to play something similar on other platforms as well.