What do you think of the idea of buying a second box of Forbidden Stars ?
Not meant to be played to more than 4 players as it would be too long for sure, but in order to have 2, 3 or 4 players game with possibility of having some symetric factions (two players playing space marines, etc...).
Do you think it could be interesting or not ?
We've done it with 5 - there were two marine players. Our armies are painted up, so easy to tell the two factions apart. The cards don't swap hands in the game so that was OK. For the second Marine faction's objectives we used coins.
The extra set of tiles (Marine home sector plus 3 random) had paper placed under them to remind us which set they belonged to once we packed up. The first tile placed was neutral (no units or objectives), allowing us to have a 4 x 4 set up.
It played completely seemlessly, and felt no different to a 4 player game except for there being an extra player than usual. As I recall, due to relative positioning there was no Marine vs (heretic) Marine combat, but the two sides were not allies in any way.