As of december 2015 1,5 million copies of Prison Architect has been sold on Steam, with a average userscore of 94% positive. I worked for Introversion Software creating marketing materials, images for Steam, designed and programmed the official website (Prison-Architect.com), Artbook, and materials for early access backers.
Prison Architect is the world's latest Prison Management Sim. Starting with an empty plot of land you must construct cells, hire guards and try to keep your prisoners satisfied or they might start a riot. From there you take your prison in which-ever direction you like. A monsterous super-max or comfortable center for rehabilitation, the choice is up to you.
Prison Architect deals with some serious topics, but with a very approachable graphic style. I decided this dualism should be shown in the design, friendly but also underlyingly dangerous. Some images below are from the digital game publishing system "Steam" where the game can be bought.