Would anyone like to help me with something?

I need help with my enemy system in a game that I'm working on. If anyone can help, I'll invite you to the project.Pretty much, I need to have another enemy spawn every round, but I have no idea how to do that.

Okay, I could help you, but I'm not home. When will I be home?

The game that I'm talking about is called BitGrind. I think I invited you to the project already.