- a new spaceship to return home
- an underwater base centered around their crashed spaceship
- multiple spacebridges
- a new city just beneath New York! (or at least one really big building)
- The Stunticons and Constructicons (I'd include the Combaticons, but Starscream didn't really seem to have to build them)
- Check out planet Charr when the Decepticons first settle as compared to a few episodes later when it's covered with tech and buildings.
Anyway, I'm sure you all get the idea. The G1 Decepticons built a lot of stuff. And here comes the relevant point. In the IDW G1 comic, All Hail Megatron, we see the same characters wandering about with no real goal in mind other than wiping out tiny pockets of resistance. They're bored and Megatron's not putting them to work towards fortifying their position on Earth. When the Autobots show up at the end of the story, it's easy for them to drive off the Decepticons, due in part to their lax defenses. It's not like conquering worlds is a new thing for the IDW Decepticons, with all their phases for invading and overtaking other planets. IDW Megs should be used to directing the conquest of a planet, and I'm sure the first order of business after assuming near-total dominion isn't to let the troops laze about while resistance fighters organize around them; human, autobot or otherwise. I wasn't ever clear on what Megatron was doing on Earth during the whole AHM arc anyway. Just hanging out or what? He could take a couple lessons from G1 cartoon Megs though, I'll tell you what!