Blocks that Matter is a good game if you like puzzle type games and I'd recommend it. I've put almost 4 hours into it but got frustrated and took a break. I've stopped and started about 4 times and haven't got that error anymore.

There are a bunch of levels other than the main game. Its got 26 community built levels and 10 more under Humble Bundle update. I think there are 42 levels in the adventure mode and 20 bonus levels also.