Talk:Void Keys/@comment-94.181.16.216-20130720195720/@comment-76.125.229.7-20130721145909

Starting with Neptune (Despina) and going up in level from there, I can usually get one on wave 5 / 10. As a completely unscientific guess, my experience has been about a 40% success rate at getting one of the new Capture / Defense / Mobile Defense on wave 5. If I don't get one that early, I'll usually take the reward and start again - seems to go much faster than going to higher waves.