Aion 2 reaches 397,905 concurrent Steam players at launch

The figures cited by Game Rant also say Aion 2 stayed above 300,000 concurrent players every day after release. The game runs on Unreal Engine 5 and focuses on vertical movement, aerial combat, and classic MMO elements such as dungeons and raids.

What happened

Aion 2 recently launched on Steam and immediately drew a huge player base. In the SteamDB figures cited by Game Rant, the game reached an all-time peak of 397,905 concurrent players on October 5, 2026, the day it released. The external SteamDB summary also lists 346,942 players live at that moment, showing that the game still had a massive active population after the peak.

The game is developed by NCSoft and is positioned as the successor to Aion: The Tower of Eternity, which launched in 2009. The description of Aion 2 also brings back dungeons and raids, alongside a world where elevation changes and aerial movement play a central role. SteamDB describes the game as an MMORPG where the sky is the battlefield and where players, as Daeva, join a faction war in a world 36 times larger than the original.

According to the provided information, Aion 2 uses Unreal Engine 5. The main gameplay factor highlighted in the source is verticality: players can climb, glide, and fight with height differences as a core part of combat. That emphasis on vertical gameplay matches the SteamDB description, which explicitly frames the sky as a combat space.

The source cited by Game Rant also says Aion 2 stayed above 300,000 concurrent players per day after launch. In the provided information, that figure is tied to the first days after release, while another external summary says the game went live worldwide on Steam and on NCSoft’s own PURPLE launcher on October 5, 2026. Within the available data, however, the 397,905 peak is clearly a Steam figure.

Background

NCSoft is the studio behind Aion 2 and is also known in the source as the developer of the Blade & Soul series and as the publisher of ArenaNet’s Guild Wars titles. With Aion 2, the publisher returns to the MMORPG segment on Steam with a title that sits squarely in the same online RPG category as its earlier series.

The game is described in the provided information as a fantasy MMO with classic online features, including dungeons and raids. At the same time, Aion 2 stands out for its focus on vertical gameplay and Unreal Engine 5, giving it a different angle from a standard MMO. The SteamDB description adds that the world is built around aerial combat and a faction conflict in which players take on the role of Daeva.

The available sources also say Aion 2 reached an all-time peak of 397,905 concurrent players on Steam. The external summary ties that to a worldwide release on October 5, 2026, while the SteamDB summary lists 346,942 live players at the same time. Taken together, those numbers show that the Steam launch was exceptionally large for the MMO genre.

The source information further notes that Aion 2 runs on Unreal Engine 5. That detail matters because it aligns the game with modern PC releases technically, while the gameplay described in the provided material leans on familiar MMO elements such as raids, dungeons, and faction battles. The combination of a classic MMO structure and a strong emphasis on vertical movement is central to how Aion 2 is positioned in the source.

Sources

• Game Rant: Aion 2 concurrent players launch Steam
• SteamDB: AION 2 Steam charts