Is your Space Center Great Work stuck at 300 workers? I have a solution for you. This works in both online and offline game modes and on every map we've tried so far. Note that it requires two mods: "Skye's Regional Freeway Mod" and "CamModB1". If your'e not sure how to install a mod, you can read my Mod Installation Guide at http://www.simcityplanningguide.com/2014/01/mod-installation-guide.html
For additional information about this workaround for the space port great work you can read my blog post at http://www.simcityplanningguide.com/2014/09/SimCitySpacePortGreatWorkFix.html
