Iced In

There's a beautiful simplicity to Iced In. In a pretty, snow-covered setting, a little parka-clad boy must rescue imprisoned penguins by sliding large ice blocks on to switches that will open their cages. Here's the tricky part: The ice blocks don't stop moving until they hit something. So you have to push them in multiple directions using environmental obstacles and other ice blocks to get them all positioned where you want them. You have five relatively easy levels during which you can get your footing, and then you're immediately thrown into super-tough brain-stumper land. The difficulty curve is a bit too steep, but the game has its charms and provides hours of challenging fun for puzzle lovers.