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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.

Lucius III · Protondex

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Lucius III

#513290

Lucius is back. In a whole new narrative experience, he now returns to his old neighborhood of Winter Hill. The path will be a difficult one, with trials and tribulations waiting ahead. Has he made the right choices? Is it finally time to end it all?

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Recommendation

ProtonGreat

Only Proton reports exist so far.

Compatibility

Proton

Great

✓CurrentLow confidence

5 reports · Low confidence: very few recent reports yet.

NativeNone

No native Linux build — Proton only

Desktop

Great

✓CurrentLow confidence

5 reports · 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:✓Current5 reports · last updated Jan 13, 2026

Guide cards

No guide cards yet — curated troubleshooting for Lucius III will appear here.

Reports (5)

PathOutcomeDeviceFreshnessAnti-cheat

5 of 5 reports

GreatProtonDesktopHistorical · ProtonDB
Jan 13, 2026
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Jan 12, 2025
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Apr 9, 2023
Imported from ProtonDB (ODbL)
BlockedProtonDesktopHistorical · ProtonDB
Dec 26, 2020
Imported from ProtonDB (ODbL)
BlockedProtonDesktopHistorical · ProtonDB
Mar 20, 2020
Imported from ProtonDB (ODbL)