In 1998, Troika started designing a steampunk fantasy crossover role-playing video game named Arcanum: Of Steamworks and Magick Obscura and convinced Sierra Entertainment to publish it. The game was launched on August 21, 2001. While criticized for being unpolished and having poor combat, it received generally favorable reviews, averaging 81% on Metacritic. With 234,000 units sold, it is Troika's best-selling game. In 2016 it was released on Steam, where as of March 2017, it has over 200,000 owners.
After Arcanum was released in 2001, two teams started to work on two different games. One team created The Temple of Elemental Evil for publisher Atari which was released on September 26, 2003. It received praised for its implementation of the D&D 3.5 system, but received mixed reviews due to gameplay bugs and a lacking plot. With a 71% on Metacritic, it was the lowest-rated Troika game. It sold about 128,000 units.
Using an early version of the Source engine, the other team worked for Activision on Vampire: The Masquerade – Bloodlines. Development for that title finished in October 2004, and it released one month later. Critics praised Bloodlines' visuals, audio, and story but warned of bugs. It was rated 80% on Metacritic and sold merely 72,000 units on its original release. With the addition of the game to the digital distributors Direct2Drive and Steam in 2016, many units were sold digitally. As of March 2017, approximately 550,000 people own the game on Steam.
In 2004, Troika tried to find a publisher for an unnamed post-apocalyptic role-playing video game but was unsuccessful, leading to rumors in January 2005 that the company had already shut down. Screenshots of the unnamed game were posted in 2004 to the Fallout fan sites "No Mutants Allowed" and "Duck and Cover". A tech demo video was released in early 2005, weeks before closing. Tim Cain later confirmed that this was supposed to be a sequel to Fallout: "Leonard pursued Fallout 3, which ultimately went to Bethesda, who outbid us."
