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The modern compatibility index for Steam games on Linux.

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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.

PHASE ZERO Demo · Protondex

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PHASE ZERO Demo

#3472400

A grotesque illness binds the town of Flint Peak. Several survivors try to escape with their lives as mysterious creatures roam the streets. Face horrific monsters, solve puzzles and uncover the truth in this classic survival horror. Can you escape the nightmare?

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Recommendation

ProtonGreat

Only Proton reports exist so far.

Compatibility

Proton

Great

✓CurrentLow confidence

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

NativeNone

No native Linux build — Proton only

Desktop

Great

✓CurrentLow 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:✓Current1 report · last updated Jan 19, 2026

Guide cards

No guide cards yet — curated troubleshooting for PHASE ZERO Demo will appear here.

Reports (1)

PathOutcomeDeviceFreshnessAnti-cheat

1 of 1 report

GreatProtonDesktopHistorical · ProtonDB
Jan 19, 2026
Imported from ProtonDB (ODbL)