Prison Tycoon 4: Supermax is a business simulation video game developed by Virtual Playground and published by ValuSoft. Prison Tycoon 4: Supermax was released on August 29, 2008 in North America as the fourth game in the Prison Tycoon series. This game introduced several improvements, including a brand new graphics engine, advisers, more control over aspects of the game, such as the closing/opening of gates, underground tunnels, and more.
Prison Tycoon 4: Supermax Game Trailer/ScreenShots

Prison Tycoon 4: Supermax System Requirements
Minimum:
OS: Windows® XP/Vista
Processor: Pentium® III 1.4 GHz or faster
Memory: 512 MB RAM
Graphics: DirectX® 9.0c compliant 64 MB Video card and drivers (GeForce2 / ATI 7000 / Intel GMA 900)
DirectX®: 9.0c
Hard Drive: 800 MB of free space
Sound: DirectX 9 compatible sound card and drivers
Prison Tycoon 4: Supermax Direct Download Link
file size: 406.56 MB
Prison Tycoon 4: Supermax Free Download