Well, I tried improving it from the way it is, but I think it's best to just drop the idea. Since Blockland has no one thing it focuses on, it's hard to make a campaign out of it. You can do an Army RP, a Survival RP, or even a City RP, but none of them can be considered a campaign since Blockland focuses on building in general. What you're doing right now is like a really easy challenge.