Hmm that's definitely odd, there should be enemies spawning within 2-6 seconds of the game starting. I've not heard of anyone encountering a bug like this before, can I ask what platform you are playing on?
Viewing post in Defender of Eidolon jam comments
I'm really sorry the game isn't running correctly for you, this is the first time I've heard of this particular issue after over 70 downloads... My only guess right now is that your laptop may not meet the minimum specs for the game to run correctly? I hope you can hold off on making a rating for now and give our game another try on another device when you get home!