Hi itchimplied! The game works like this: For each wave 10 enemies are spawned. You need to pick all books in the map (There are 6 of them). Each book is + 1 wave. And the civilians sometimes they can get stuck between monsters or rocks so the idea is to give them a small push for them to move. They should be able to save themselves. I am sorry for your bad experience. I should have written better instructions. Thank you for playing!