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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.

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Caliber · Protondex

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Caliber

#307950

Caliber is a team-based online shooter focused on special forces units from all over the world. More than 70 operators with unique abilities and weapons as well as various game modes and maps are waiting for you.

View on Steam →

Recommendation

ProtonGreat

Only Proton reports exist so far.

Compatibility

Proton

Great

✓CurrentLow confidence

42 reports · Low confidence: recent reports disagree on the outcome.

NativeNone

No native Linux build — Proton only

Desktop

Great

✓CurrentLow confidence

42 reports · Low confidence: recent reports disagree on the outcome.

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:✓Current42 reports · last updated Apr 29, 2026

Guide cards

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

Reports (42)

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PathOutcomeDeviceFreshnessAnti-cheat

42 of 42 reports

BlockedProtonDesktopHistorical · ProtonDB
Apr 29, 2026
Imported from ProtonDB (ODbL)
BlockedProtonDesktopHistorical · ProtonDB
Apr 8, 2026
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Mar 19, 2026
Imported from ProtonDB (ODbL)
ReadyProtonDesktopHistorical · ProtonDB
Jan 28, 2026
Imported from ProtonDB (ODbL)
BlockedProtonDesktopHistorical · ProtonDB
Dec 31, 2025
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Dec 18, 2025
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Nov 28, 2025
Imported from ProtonDB (ODbL)
BlockedProtonDesktopHistorical · ProtonDB
Nov 17, 2025
Imported from ProtonDB (ODbL)
ReadyProtonDesktopHistorical · ProtonDB
Nov 8, 2025
Imported from ProtonDB (ODbL)
BlockedProtonDesktopHistorical · ProtonDB
Oct 20, 2025
Imported from ProtonDB (ODbL)
BlockedProtonDesktopHistorical · ProtonDB
Oct 6, 2025
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Dec 22, 2024
Imported from ProtonDB (ODbL)
ReadyProtonDesktopHistorical · ProtonDB
Dec 10, 2024
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Nov 13, 2024
Imported from ProtonDB (ODbL)
TinkerProtonDesktopHistorical · ProtonDB
Jul 23, 2024
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Jun 30, 2024
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Jun 3, 2024
Imported from ProtonDB (ODbL)
ReadyProtonDesktopHistorical · ProtonDB
Apr 23, 2024
Imported from ProtonDB (ODbL)
TinkerProtonDesktopHistorical · ProtonDB
Feb 5, 2024
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Sep 30, 2023
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Aug 23, 2023
Imported from ProtonDB (ODbL)
PlayableProtonDesktopHistorical · ProtonDB
Aug 2, 2023
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Jul 8, 2023
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Jul 6, 2023
Imported from ProtonDB (ODbL)
PlayableProtonDesktopHistorical · ProtonDB
Jun 18, 2023
Imported from ProtonDB (ODbL)
PlayableProtonDesktopHistorical · ProtonDB
Jun 9, 2023
Imported from ProtonDB (ODbL)
BlockedProtonDesktopHistorical · ProtonDB
Jun 1, 2023
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
May 28, 2023
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
May 21, 2023
Imported from ProtonDB (ODbL)
ReadyProtonDesktopHistorical · ProtonDB
May 19, 2023
Imported from ProtonDB (ODbL)
BlockedProtonDesktopHistorical · ProtonDB
May 8, 2023
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Apr 17, 2023
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Apr 16, 2023
Imported from ProtonDB (ODbL)
ReadyProtonDesktopHistorical · ProtonDB
Apr 14, 2023
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Apr 14, 2023
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Apr 13, 2023
Imported from ProtonDB (ODbL)
ReadyProtonDesktopHistorical · ProtonDB
Apr 12, 2023
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Apr 12, 2023
Imported from ProtonDB (ODbL)
ReadyProtonDesktopHistorical · ProtonDB
Apr 12, 2023
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Apr 12, 2023
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Apr 12, 2023
Imported from ProtonDB (ODbL)
GreatProtonDesktopHistorical · ProtonDB
Apr 12, 2023
Imported from ProtonDB (ODbL)