sigh, had to do a ton of back tracking, because I missed the very last blue key somewhere...and passing through the cloud area, I got stuck in a corner and couldn't get out :\
Sandbox mode can be quite entertaining if you have enough spare time. I'm playing and right now I've just hit year 3 and got the 'rune' for it. But I noticed I didn't get one for year 2. Not sure how or why.
too me a good 20 minutes or so to finish off that bonus map. Was intense though, got my ass handed to me for a bit, then just stole all the bases mwahah
 "Massive Mayhem 3"){kind=icon}
 "Elephant Quest"){kind=icon}
 "Electric Box 2"){kind=icon}
 "Unfairy Tales"){kind=icon}
 "A Game"){kind=icon}
 "Black Jack Trainer"){kind=icon}
 "Dead Frontier: Outbreak 2"){kind=icon}
 "Valthirian Arc"){kind=icon}
 "GeoSketch"){kind=icon}
 "Battalion: Nemesis"){kind=icon}