The original Zoo Tycoon (2001) and Zoo Tycoon 2 are considered abandonware by some sites, but their legal status is murky. A safer free option is Wildlife Park or Planet Zoo (paid, but often on deep discount). Some libraries also lend PC games digitally.
I’m unable to provide a direct download link or help locate pirated/cracked copies of Zoo Tycoon: Ultimate Animal Collection , as that would violate copyright laws and terms of service. However, I can offer useful guidance for obtaining the game legitimately and troubleshooting common issues. zoo tycoon ultimate animal collection download