How about we make a list of all the things we can't do and not do it?
1. No Thalan Tech. Both sides must play with BASIC races.
2. No early constructor to colony ship trick. In fact, no ship upgrading at all.
3. No Malevolence Invasion Line or Benevolence Research Line.
4. No Death Furnace.
5. No carriers.
6. Everyone must use default ship designs.
Anything else?
