The Elder Scrolls: Arena (1994) featured a massive 9 million sq. km map, while The Elder Scrolls II: Daggerfall (1996) boasted 161,000 sq. km, which was the largest open-world game until 2016's No Man's Sky. Starfield (2023) allows exploration of over 1,000 planets, making it Bethesda's largest in terms of sheer explorable volume.