Rather than try galaxy forge, i decided to se the in-game map designer to make a map template, so it would be randomly generated each time. The map size is set to minimum, with about 100 planets, 10 players, and 1 star. Phase lanes and resources are also at maximum. Here is the result:

as you can see, there is a lot going on. I have detailed screenshots, but those would stretch the page too much, follow the link and look at them if you want (they're the whole top row and the first one on the second row).

Summary of game state: the game has been running for about 45 minutes now, and it appears that most freidly AI were set to "colonizer": because we've pretty much won already by boxing our enemies in. However, the enemy AI most likely has some large fleets compared to ours, as i found out when trying to take an enemy controlled asteroid and had my entire fleet except my cap destroyed.