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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.

Cosmobreeder Yiffai · Protondex

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Cosmobreeder Yiffai

#3548000

Travel to a forgotten world and study alien creatures in this authentic retro metroidvania!

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Recommendation

ProtonGreat

Only Proton reports exist so far.

Compatibility

Proton

Great

✓CurrentMedium confidence

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

NativeNone

No native Linux build — Proton only

Desktop

Great

✓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 Mar 30, 2026

Guide cards

No guide cards yet — curated troubleshooting for Cosmobreeder Yiffai will appear here.

Reports (4)

PathOutcomeDeviceFreshnessAnti-cheat

4 of 4 reports

GreatProtonDesktopHistorical · ProtonDB
Mar 30, 2026
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Jul 1, 2025
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Jun 7, 2025
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Apr 25, 2025
Imported from ProtonDB (ODbL)