In Bug Tunnel Defense, bugs are in fact our deadly enemies after an atomic war has laid waste to the rest of civilization, and they're coming for what is left of humanity. So, not much different from the present day, really, minus the radiation and the end of civilization. With 5 levels of tutorials and 40 levels of gameplay, Bug Tunnel Defense is short but entertaining. If you enjoy tower defense games, then try out Bug Tunnel Defense with its fun new twist on an old classic. And for heaven's sake, get those darn bugs before they wipe us all out.