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The modern compatibility index for Steam games on Linux.

Steam · Linux · Proton & Native

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Protondex is an independent community compatibility index and is not affiliated with Valve, Steam, Proton, CodeWeavers, or ProtonDB.

Some historical compatibility records originate from ProtonDB's data export under the Open Database License (ODbL) v1.0; Protondex publishes a periodic public dump of its compatibility database under the same license. View the ODbL.

Halo 3 · Protondex

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Halo 3

#1064271

Halo 3 comes to PC as the next installment in Halo: The Master Chief Collection. Witness the Master Chief’s return to finish the fight between the Covenant, the Flood, and the entire Human race in this dramatic, pulse-pounding conclusion of the original Halo trilogy.

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Recommendation

ProtonGreat

Only Proton reports exist so far.

Compatibility

Proton

Great

↻Needs confirmationLow confidence

1 report · Low confidence: very few recent reports yet.

NativeNone

No native Linux build — Proton only

Desktop

Great

↻Needs confirmationLow confidence

1 report · Low confidence: very few recent reports yet.

HandheldUnknown

No reports yet

Anti-cheatUnknown

No anti-cheat reports yet

Summary based mostly on historical data from ProtonDB. Fresh reports from your setup help keep it current.

Freshness:↻Needs confirmation1 report · last updated Aug 26, 2025

Guide cards

No guide cards yet — curated troubleshooting for Halo 3 will appear here.

Reports (1)

PathOutcomeDeviceFreshnessAnti-cheat

1 of 1 report

GreatProtonDesktopHistorical · ProtonDB
Aug 26, 2025
Imported from ProtonDB (ODbL)