How many people are playing Halo 3: ODST right now?

Halo 3: ODST is app 1064272 on Steam. Player counts appear once the tracker has sampled it.

When was Halo 3: ODST released on Steam?

Halo 3: ODST was released on Steam on 29 Oct 2021.

Halo 3: ODST

No announcements yet · from Halo 3: ODST’s Steam news feed

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This developer has not posted announcements to Steam, or we have not read their feed yet.

Announcements are the developer’s own posts to the game’s Steam news feed: updates and their patch notes, in-game events, releases and sales. The important ones are marked on the players chart.