Steam has our 'easy to learn, hard to master' puzzler Tidalis at 50% off today only as part of their Daily Deal promotion. With the game's recent price drop that brings the PC/Mac title down to just $2.50.
If you know much about our games, you know that's quite a bit of content for around the cost of a cup of coffee. Plus no calories (directly).
The sale ends tomorrow (Monday, March 26th) at 10:00 AM PT. Reluctant? Demo. Tidalis Lite (browser version).