Welcome to

Online Zoo Builder

Build your own zoo, entertain your guests, and continue to expand your park! Share your park with your friends and collaborate together to create your perfect zoo!

Build your own Zoo, entertain guests, and expand!

The #1 Zoo Builder on the Internet


Play Today!

Play in Browser! Play on Android! Play on iOS!

Attention Schools!

Is your school using Online Zoo Builder to teach students? Please e-mail us at support@drennansoftware.com and let us know! We will provide your students with a sandbox mode, and will provide free zoo tokens, in-game money, and more play area at no cost to you or your school!

Share with friends!

Click here for your Discord invitation link.

Advertise In-Game

Click here to learn how to place your advertisement in Online Zoo Builder.

Latest News And Updates

We Donate

10% of all proceeds
go to Wildlife Conservation

We care about the wildlife that we share the world
with. 10% of all proceeds generated by this game
will be donated to Wildlife Conservation Society.