Just thought I'd point out that a demo for Lazy 8 Studio's puzzler Cogs has been out for a while now, and the game is also on sale at 50% off ($4.95) on Direct2Drive until this Sunday. Both the demo and D2D version are DRM-free.

The demo allows you to sample the first eight levels (from a total of fifty), but you can also replay the same number of levels (with small variations) in the Time and Move Challenge modes.

Review: Cogs (IndieGames)