Apogee Software

Apogee Software, LLC is an American video game publisher based in Rowlett, Texas. Originally, 3D Realms, a video game company founded by Scott Miller in 1987, bore the Apogee Software name and logo until adopting the trading name "3D Realms" in 1996. In 2008, Terry Nagy, a college friend of Miller, acquired the rights to the name and logo of Apogee Software, as well as the rights to several games developed under that name, and established a new company to publish further titles using the moniker. The publisher's opening was officially announced July 14, 2008, at that year's Electronic Entertainment Expo.

Alongside the corporate formation also came the announcement of Duke Nukem Trilogy, three new games in the Duke Nukem series, consisting of Critical Mass, Chain Reaction and Proving Grounds, developed by Frontline Studios and set to be released on Nintendo DS and PlayStation Portable. A co-publishing deal was reached with Deep Silver to ensure wide distribution of the titles. Critical Mass was released for Nintendo DS in May 2011, however, its PlayStation Portable version, as well as Chain Reaction and Proving Grounds, ultimately stayed unreleased.