Prison Architect is a video game by the British software company Introversion Software. It was made available as a paid alpha pre-order 26 September 2012 with updates scheduled every three to four weeks. The game was an entrant in the 2012 Independent Games Festival.
The game is a top down construction and management simulation where the player takes control of the running and building of a maximum security prison. The player is responsible for managing various aspects of their prison including staff, building new cells, finance, and keeping their inmates happy. The player's role is of both architect and governor with sandbox micromanagement themes such as choosing where to put lights, drains and how they connect together.
Source: Wikipedia, "Prison Architect", available under the CC-BY-SA License.