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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.

In Falsus Demo · Protondex

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In Falsus Demo

#4355100

In a world bound by truths: connect. In Falsus is a mesmerizing rhythm game tied to an intricate card system brought together through a layered narrative. Taking place in a near-future world, traverse an atmospheric soundscape through the eyes of 5 interconnected protagonists.

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Recommendation

ProtonReady

Only Proton reports exist so far.

Compatibility

Proton

Ready

✓CurrentMedium confidence

4 reports · Medium confidence: more recent reports would firm this up.

NativeNone

No native Linux build — Proton only

Desktop

Ready

✓CurrentMedium confidence

4 reports · Medium confidence: more recent reports would firm this up.

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:✓Current4 reports · last updated Feb 25, 2026

Guide cards

No guide cards yet — curated troubleshooting for In Falsus Demo will appear here.

Reports (4)

PathOutcomeDeviceFreshnessAnti-cheat

4 of 4 reports

ReadyProtonDesktopHistorical · ProtonDB
Feb 25, 2026
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Feb 21, 2026
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Feb 11, 2026
Imported from ProtonDB (ODbL)
ReadyProtonDesktopHistorical · ProtonDB
Feb 11, 2026
Imported from ProtonDB (ODbL)