RollerCoaster Tycoon Classic - Create and run amazing parks on your iPhone or Android.
Pocket Frogs - Pocket Frogs is an Addictive, Hunter, Breeding, Training, and Single-player Simulation developed and published by NimbleBit LLC.
Theme Park Inc - Theme Park Inc is an Isometric, Construction and Management, and Single-player Simulation developed by Bullfrog Production and published by Electronic Arts.
Zenforms: Protectors - Zenforms: Protectors takes you to a whole new world of challenging Puzzles, amazing Adventures and RPG elements and allows you to immerse yourself into a very immersive and quite engaging game-play ever.
OpenTTD - An open-source clone of the classic game ...
Mighty Monsters - Mighty Monsters offers a fantastic combination of Adventure-based Puzzles and RPG elements and takes you to a wonderfully colorful world filled with a number of different monsters and creatures.