...The 7 games are all based on this IP:
Children of the Thousand Suns: The Unaligned Mandate
Each game combines a few different genres from this list and others:
RTS, TBS, RPG, Sim, City Building, Breeding, Management
You can also make mods of various kinds with support for all the features my own games use and possibly more. It's open source and free obviously.
Most modding is done through XML files quite similar to the ones for other Glest derivatives. There may be some good scripting support as well.
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