In a nutshell
- Once Human’s Isles of Abyss expansion launches globally on October 22, 2026 (Oct 21 PT).
- Introduces naval base‑building, land‑sea progression, and full cross‑play across PC, Console, and Mobile.
- Face the awakening ocean entity “The Sunken Lord” and survive five hostile sea regions.
Starry Studio has announced that Isles of Abyss, the largest expansion yet for the survival MMO Once Human, will launch globally on October 22, 2026 (Oct 21 PT).
Available as a free update, the expansion rolls out simultaneously across PC, mobile, and consoles (PS5 and Xbox Series X/S), with full cross‑play and cross‑progression.
The Ocean Awakens
At the heart of Isles of Abyss lies “The Sunken Lord”, an ancient entity that transforms the ocean into a living, hostile force. Players must heed six survival rules revealed by navigator Malla, warning of predatory lighthouses, disguised living islands, and other lethal traps.
Conquer the Seas
The expansion introduces:
- Custom Warships — Build and upgrade vessels from nimble skiffs to massive Mobile Sea Fortresses, turning ships into bases, workshops, and artillery platforms.
- Land‑Sea Dual Survival Loop — Navigate treacherous waters, explore mysterious islands, and dive deep underwater for treasures and resources.
- Five Distinct Ocean Regions — Each region offers unique hazards as the ocean itself watches every move.
Once Human – Cross‑Play & Game Pass
Isles of Abyss will be available as a free update with seamless cross‑play and progression across platforms. Xbox Game Pass subscribers will also gain immediate access at launch.
