About Annulus

Annulus is an Action, RPG, Casual, Adventure, Simulation, Massively Multiplayer, Strategy, and Free to Play game developed by NIRVANA, HONG KONG INDRA SOFT INTERNATIONAL LIMITED, and HONG KONG NIRVANA LIMITED. It was released on the Steam Store by HONG KONG INDRA SOFT INTERNATIONAL LIMITED, Nirvana, and HONG KONG NIRVANA LIMITED.

It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.

According to Steam’s category system, Annulus supports the following features:

• PvP
• Multi-player
• Cross-Platform Multiplayer
• Online PvP

Media & Sceenshots

Watch the featured video for Annulus and see the latest screenshots from the Steam Store.

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Soures & References

Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Data is enriched, cleansed, verified, and updated in real-time to ensure we surface the most up-to-date information. Learn more about the Steambase approach to data collection.

Annulus data has been sourced from:

• Valve Corporation. (2025, December 31). Annulus on Steam. Steam Store.
• Valve Corporation. (2025, December 31). Annulus. Steam Community Hub.
• NIRVANA. (2023, August 27). Annulus. Annulus.