Open World may refer to:
- Sakura Samsara, a feudal RPG-like area that tells the backstory of Yae Sakura and Higokumaru.
- Schicksal HQ, a futuristic RPG-like area where Captains work with Einstein and Tesla.
- A Post-Honkai Odyssey, a post-apocalyptic RPG-like area which depicts the city known as St. Fountain, 8 years after the 3rd Honkai War.
- A Post-Honkai Odyssey Chapter 2, a post-apocalyptic RPG-like area that shows the aftermath of St. Fountain after the events of the former open world.