Here is Hexachains, it's a small puzzle game similar to Tetris with 15 levels. The goal is to create chains of 3 or more hexagons of the same color.
The game rules :
- link 3 or more hexagons of the same color together
- Hexagons that are not link to one of the starting point will disappear (and count as more points)
- Use left and right arrow to rotate the platform- Press "space" to accelerate Hexagons
I have a gameplay video that should give you a good idea of what the game is like:
Hope you will enjoy it, let me know if you have any issues 
Have fun!