After playing for some time (I am now on my third or fourth world), I just don't get it. I've been playing to see if anything happens next, but its just the same. It would be better if you could take your money into the next world to make things work even faster. I think I'll stop playing now. If you could fix it so that money travels with you, then I'd consider playing again.
 "Spidle Tridle"){kind=icon}
 "String Theory 2"){kind=icon}
 "Swarm Simulator"){kind=icon}
 "GemCraft Labyrinth"){kind=icon}
 "Critter Forge"){kind=icon}