When World of Warcraft was in the process of WoTLK Gold development, a group of programmers were creating an Nazi zombies game prototype to have enjoyment. Because the game was in a bind and the zombies were not in sync to the setting of the franchise, Lamia considered telling them to quit wasting their time on it and instead focus on the main game. This was a decision which he described as one "that could be the biggest error of my life."

At the end of the day he slowed down and played the mode for himself. It was extremely enjoyable, and Lamia believed it was an interesting feature to add in the games. However, convincing the team's management was an struggle, and some even considered it considered a "disgrace on the team." The team worked on the mode behind the scenes and also tried to use the word of mouth to tell people how much fun the mode was rather than pitching it directly to top executives in the studio.The problem is that World of Warcraft 's public relations and marketing teams thought it was confusing and not in line to the World of Warcraft franchise. In 2008. Lamia unhappy trying to promote the World of Warcraft Zombies game might have felt as if the series had jumped over the shark. It was, therefore, included into World of Warcraft as an easter egg which could only be used for players that had completed in the primary campaign.

Then, after the game's launch, the zombie game was so well-liked that it was made unlocked by the patch. The story of the zombie world evolved as time went by and was driven mostly by the fans' theories cheap WoTLK Classic Gold and messages on message boards.