Lunar Rescue

Not to be confused with a Taito arcade cabinet with the same name, this is a Mac-exclusive game featuring artwork by Mike Saenz.

The moon's defense system has been sabotaged, causing it to fire on all ships trying to cross the supply lines between cities. Your job is to trade goods (at a profit), battle the automated weapon platforms, and scour the lunar canyons for the stolen defense system components that will restore order.