Actually, Apogee never died. 3D Realms was launched as an Apogee brand but when FPS titles began to supplant platformers it was decided to flip things around; thus, the company became known as 3D Realms and the Apogee name was dropped. But the company's legal name was always Apogee. In fact, if you go to the 3D Realms website (which is still up, although not completely reliable) and check the bottom of the main page you'll see that everything there is copyrighted by Apogee Software, not 3D Realms.