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Intergalactic prison building adventure!
Design and build your own intergalactic space-prison!
* Discover and collect many unique aliens
* Secure your prisoners in the action packed Lock-Down sequence
* Build your prison to be uniquely your own!
* Research new buildings and cell blocks
* Keep your inmates in great shape to maximize profits!
What's New in the Latest Version 1.53
Last updated on May 31, 2021
Maintenance update
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Prison Planet
1.53 by Springloaded Ltd.
May 31, 2021