It may be (I don't have a huge amount of experience with the expansions) that you can find some mix that plays well together, though based on what Matt's said, perhaps not.
If this works out, then you may have to decide whether you want to play with official or unofficial.Īt the same time, knowing that some of the unofficial stuff is for the expansions (the sailfish being one of them?) then next step would be to systematically add expansions to your game, one at a time, again, to see if you can narrow down the compatibility issue. Couldn't find the sailfish available online.Īs Matt says above that they don't play well with expansions, first port of call should be to uninstall expansions, add the unofficial animals one by one and check if each appears in the game, then all at once and see what happens.
I've tried the american badger, leopard tortoise, and maned wolf all with just the base game and they've appear just fine simply dropping the files (unzipped) into the main Zoo Tycoon 2 folder in (x86).