Astraeos Heaven & Abyss is now available on Steam for ARK: Survival Ascended, according to the official announcement published on August 27, 2026. No separate deployment time or time zone is specified, and the announcement does not confirm availability on another platform.
This expansion presents Astraeos 1.0 as the final chapter of Astraeos, a Greek mythology-inspired world covering more than 264 km². Its two new regions are Helianthos and Abyssanthos, with the latter featuring underwater air pockets that can accommodate base building. The full Steam announcement
New content across Astraeos
Astraeos owners gain access to the Trireme, along with the Shipyard and its ammunition types. The announcement distinguishes it from the Galleon, which remains tied to ownership of Tides of Fortune. New ocean wave physics are also part of the update.
Two Ascension encounters, Abyssalus the Void Beneath and Shallocis the Void Above, join the game. Defeating both lets players reach their maximum levels. The miniboss roster also expands with Colossus and Kroaratos, while the Apex Drops pool gains Astral Souls and Hex Coins.
The update includes six cosmetics: the Agamemnon Helmet, Boaratos Spartan Saddle, Divine Sword, Divine Spear, Divine Shield and Trireme Chair. Genesis receives three Ocean Outposts, while Land Outposts and 20 Pirate Camp configurations are added as well.
Fixes and remaining details
The listed fixes cover mesh, physics and post-processing problems, including issues in the Wyvern Cave. The announcement does not provide independent performance, stability or balance data, so the practical effect of those corrections remains unassessed.
The price, editions and possible release plans for other platforms are not specified. For Steam players who own Astraeos, the confirmed change is a substantial content expansion built around two regions, new progression encounters, the Trireme and additional building locations. This is a source-based report, not a hands-on review.
More to explore
- our feature on geforce-now-firefox
- the ARK: Survival Ascended game page
- our article on Cerberax arriving in ARK: Survival on September 30
Verified sources
- steamcommunity.com: Official Steam announcement “Astraeos Heaven & Abyss Update is now live!”, published on 2026-08-27: confirms availability on Steam, the new territories, bosses, creatures, rewards, cosmetics and fixes.
