Feedback Challenge Mode- Let us delete undeletable buildings on Scenario Maps. RELATED: Planet Zoo: First 10 Things You Should Do In Challenge Mode. They are amazing with enough mods and enough time on one map, but they are certainly more for the types who would have been building complex model train setups in their cellars Stumpt Rik plays Planet Zoo: Challenge Mode! Challenge Mode is very similar to Franchise mode, with the main difference being you don't have to always be onl Welcome back to Planet Zoo! This is our first episode of challenge mode in Planet Zoo! Let's try and make a profitable zoo! Along the way we can learn tips a I Got Bored and Made a new meme inspired by the recent Country Living Ep. We would like to show you a description here but the site won’t allow us.