My dad and I like to play this game on Linux called Luola, but it only comes with 5 or 6 levels. After we had gotten bored with those, my dad started looking around for some more levels and found out that it really isn't that hard to create your own level from scratch. So, after a little searching he created a few experimental levels. Ayrica, my sister, and I even created some levels of our own. Here are the levels we have created so far:
Download my Luola levelpack here.
You just have to put these extracted files in your luola/levels directory. On my Ubuntu system the path to the levels folder is `/usr/share/games/luola/levels/`.