If you're looking specifically for free-to-play simulator games, consider these options available on official stores: : A free version of the chaotic classic.
: Zookeepers must complete maintenance missions while animals use violence and objects to stop them. zookeeper-simulator-free-download-pc-game
Before downloading, ensure your PC meets these specifications: : Windows 7 or newer. Processor : Intel Core i3. Memory : 4 GB RAM. Graphics : NVIDIA GeForce GTX 660. Storage : 2 GB available space. Free Alternatives Processor : Intel Core i3
Watch these videos to see the gameplay and features of ZooKeeper Simulator in action: Storage : 2 GB available space
: Offers the first 5 levels of career mode for free.
The game is officially available on major PC platforms. While not free, it is frequently discounted: : You can purchase it here for approximately $4.99. GOG.com : The game is listed for tracking and purchase.