PlanetsCentral

When the setup for the North Star games was made it was my suggestion to make it a game without turn limit. This is just a result due to the fact that without allies, each race has to play in a different way than usual. The major carrier races are vulnerable to quick attacks from the cloaking races, they need to setup a good defense before expanding. And it takes time, lots of time before they can dominate the cluster.

Thus it makes no sense to limit a no-alliance-game to 80 turns, or to holding 150 planets. No player will battle all races at the same time, due to ressource shortages, travelling distances and strategy. Its more likely that you focus on one or two opponents before you strike against the next one. In this scenario, it is very possible that you will have two or three strong races in the end, facing each other. It would be against the idea of the game to just turn one of them into the winner because turn 80 was reached, or declare the quickest one to hold 150 planets the victor.

From my point of view the winner should be decided through battle or vote - as long as there are races still capable to fight with a chance of winning it shouldnt end.