I have tried to win on Suicidal Victory for a while, now. I use the easiest strategy that I think will work that is to use Drath Tech (War profiteering) and one by one I Will pick the strongest and the weakest race aside to join in my alliance. But always before I can marry them all the strongest race will reach Tech Victory first. I have tried to make all race constantly at war with each other (including minor races) and I usually succeed in allying 50% races of the races when the game ends.