The first game in The Elder Scrolls series, Arena, was released by Bethesda Softworks, laying the groundwork for its sequel, Daggerfall.
The Elder Scrolls II: Daggerfall, the highly ambitious open-world RPG and sequel to Arena, was officially released by Bethesda Softworks.
Bethesda released the source code for The Elder Scrolls II: Daggerfall to the public, facilitating community projects and bug fixes.