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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.

IDLE BOSS RUSH · Protondex

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IDLE BOSS RUSH

#3436030

Slay giant bosses and turn the hollow wasteland into the almighty kingdom! Endlessly rewarding incremental game where you collect fountains of rare loot, unleash crazy combos and watch the monsters fall under your knees. Boss Rush that keeps on going when you're gone!

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Recommendation

ProtonGreat

Only Proton reports exist so far.

Compatibility

Proton

Great

✓CurrentMedium confidence

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

NativeNone

No native Linux build — Proton only

Desktop

Great

✓CurrentMedium confidence

3 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:✓Current3 reports · last updated Jan 28, 2026

Guide cards

No guide cards yet — curated troubleshooting for IDLE BOSS RUSH will appear here.

Reports (3)

PathOutcomeDeviceFreshnessAnti-cheat

3 of 3 reports

GreatProtonDesktopHistorical · ProtonDB
Jan 28, 2026
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Nov 6, 2025
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Oct 12, 2025
Imported from ProtonDB (ODbL)