Duke Nukem 3D for the HP TouchPad is an authorized port by MachineWorks Northwest that was published on July 5, 2011. The downloadable app was listed only as Duke in the official app catalog. It sold for $2 US dollars in North America and £2.38 British pounds in Europe.
The game was advertised as a direct port of the PC version, with the only reported modification being that it uses on-screen directional movement buttons instead of a mouse and keyboard. However, a nearly identical port with the same on-screen directional movement buttons was previously developed for iOS by the same studio, suggesting this version may have actually been a port of the Android/iOS version instead of the PC version.
- An unauthorized port of Duke Nukem 3D for webOS, the operating system used by the HP TouchPad, was posted online by Henk Jonas in March 2010, a full year before the authorized port by MachineWorks Northwest.
- The 2010 asset purchase agreement between 3D Realms and Gearbox Software specifically states that 3D Realms had an outstanding contract with MachineWorks Northwest, who developed numerous games with the Duke Nukem intellectual property in this time period. <https://kupdf.net/download/exhibits-1-asset-purchase-agreement_5c0181c9e2b6f58c6ac9ec8d_pdf>.
- MachineWorks Northwest news feed. Retrieved November 28, 2020. <http://www.machineworksnorthwest.com/news.htm>.
- "Top 10 games to play on your cut-price HP TouchPad" by Mark Brown. Pocket Gamer. Published August 25, 2011. Retrieved November 28, 2020. <https://www.pocketgamer.com/articles/032712/top-10-games-to-play-on-your-cut-price-hp-touchpad/>.
- "Duke Nukem 3D v1.0.3 (Touchpad)". webOS Forums, Russia. Posted November 2, 2011. Translated via Google Translate. Retrieved November 28, 2020. <https://translate.google.com/translate?hl=en&sl=ru&u=http://webos-forums.ru/post7302.html&prev=search&pto=aue>.
- "The best apps for the fire sale HP TouchPad" by Mat Smith. Recombu. Published August 26, 2011. Retrieved November 28, 2020. <https://recombu.com/mobile/article/the-best-apps-for-the-fire-sale-hp-touchpad_m14994-html>.