My Idea is to link CT and MC together:
In My Colony-
After unlocking the tech that contains the GBT, you can build the stock office, which links your colony to CT.
In Colonial Tycoon-
Unlocking the tech Galactic Stock Market opens a new feature, the Stock Market. Entering a charter code of a colony into the stock market, allows you to invest in colonies and generate more money.
In MC you can type in the Stock Code of each individual business and invest in those.
Tell me what you think.