Shacknews report that “a very reliable source” has told them 3D Realms has now shut down. They say that reason for the closure is due to funding issues. The company is most famed for their Duke Nukem series, and have been working on Duke Nukem Forever on and off over the past 13 years.
In mid-April George Broussard, founder and co-owner of the company tweeted that Duke Nukem Forever hit a milestone in terms of development. “[We are] closing out a milestone this week. 71 more tasks to do and we started with probably 800-900. Been a good push. Next one starts Monday,” he said
If the reports turn out to be true, the company was shut down in its 22nd year of business