You're quite the production factory for user levels, aren't you? Well done - they're really good fun.
This one in particular, though, is problematic in that it all depends on seemingly random events in the first 3-4 minutes of play. If the neighbouring asteroids all decide to attack the player, for example, it's over. On one or two occasions I got hit in the 2nd or 3rd minute with in excess of 60 seedlings, from more than one faction.
It's okay though, because for all those sorts of occasions, there are others whereby this does not happen and I can build and take revenge!