Fun Game, But Too Expensive

It is a fun game. But the technology upgrades are too expensive. It should only cost 50 goo to get the first Tech upgrade, not 200 goo. While I am trying to save up the goo, the zombies get too strong and destroy my base. Also, the goo silos should be able to collect more goo before they get destroyed. Maybe 200 goo would be better. But otherwise, it is a fun game.

Roger Kreil about BioDefense: Zombie Outbreak, v2.0