Since my design muscles are still very weak and I coincidentally got some cool low poly asset packs two weeks ago, I decided to use them. For now I decided to simply use the demo scene of the pack as a first base and then enhance/edit it with my own ideas in the future. In addition i already added prefabs for my zombies and played around with animations which i imported from mixamo.
My goal in mind is to make the player find keys to process to the next building and finally defeat all enemies.
Here are some screenshots and a short video: