Paul Neurath, the designer of the original
Underworld games, had been in discussion with
EA on-and-off for 20 years regarding working again in the
Underworld universe. In 2014, EA granted Neurath a license to use the
Underworld setting, lore and characters, though this did not allow for the use of the
Ultima brand. With the license in place, Neurath founded OtherSide Entertainment, and
Underworld Ascension was announced in July 2014. In August 2017,
505 Games announced that they will serve as the game's publisher. In February 2018, Steve Gaynor of
Fullbright announced that two of the company's
level designers,
Nina Freeman and Tynan Wales—as well as the studio's 3D environment artist, Kate Craig—would be contributing additional work to
Underworld Ascendant. Though originally slated for a September 2018 release, OtherSide released the game for
Windows via
Steam on November 15, 2018. Ports for
PlayStation 4 and
Xbox One were released the following year on June 20 and June 26, respectively, while ports for
Linux and
macOS were released two months later on August 19. ==Reception==