Divergent1: After 60 minutes, or when you push the Survival Mode, the Emitter output jumps to a base value of 100 and continues to climb until you die or leave the game. Some people enjoy seeing how long they can last in survival mode. Just make sure you have your Collection at 32 (it will go no higher) and build lots of drones and mortars in waves as the creeper will eventually reach Odin City. Welcome to the game.
Dear liars, posers and trolls: If you would like to build up your Creeper Times Credibility, you will have to post a screenshot showing your setup and/or time screen. Of course, if you have Photoshop skills, you can fake the time screen. The 1:16 time posted by MTargaryen is close to believable, but still just beyond what I believe is possible. Please post a screenshot of your setup or take your trolling comments elsewhere where the kiddies enjoy that sort of thing.
I would also love to see a 8/12 screenshot for MTargaryen of any sub-6 minute time. 8/13 - 1:20 after several attempts. Thanks for the incentive hawk45.
DonPerplejo: Your user name translates into Professor Puzzled. This seems appropriate as the times you post seem to be impossible. In the future, you may want to either post a screenshot showing your winning setup and time, OR, you could just learn to lie better. Enjoy the game.