Hey everyone! I apologize that I was not able to support this game for a long while. I've had another job for a few years back that kept me quite busy. Now I've started my own small indie team and we've been quietly working on another sim/strategy game for PC for the last couple of years. It's not quite like Innkeeper but I think you guys will also like it. Follow us on facebook (https://www.facebook.com/maccimagames) or twitter (https://twitter.com/maccimagames) for more updates!
carrotsandstuff, it's mentioned in the Scout level, you have to hover over the bar on the upper right side of the structure menu and there will be a tooltip showing your upgrade points
First you must have one Coop upgraded to have up to 4 creatures. Use the creatures to attack the head of the carrier. Destroy it ASAP! Build all of your banks at the start of the level to load up on money and slowly replace them with Spires. You only need a few Towers here. Once the head is destroyed, you must use your Coop creatures mostly on the other smaller ships to kill them off quickly. Focus one or two Spires to target the Carrier but keep at least one Spire for targetting support ships.