Zoo Tycoon: Marine Mania, free and safe download. Zoo Tycoon: Marine Mania latest version: Free Game for Simulation Fans. Zoo Tycoon: Marine Mania is a special extension for Zoo Tycoon 2 that allows players to expand th. Go wild building the most fun and beautiful zoo you can imagine. You'll be challenged to design, build and manage a vibrant zoo where both your animals and guests are happy. You have more than 40 different animals to choose from, including chimpanzees, camels and tigers. The demo contains four tutorials and one Marine Mania map. In Zoo Tycoon: Marine Mania, youll make a huge splash by adding killer whales, manta rays, and other exciting marine animals to your existing zoo. Have a whale of a time as you combine land, marine, and prehistoric animals to build the wildest, most exciting zoo ever!