protondex

000

View

The modern compatibility index for Steam games on Linux.

Steam · Linux · Proton & Native

Search games Features Contribute About Support Terms Privacy

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.

Portal: First Slice · Protondex

← Back to search

Portal: First Slice

#410

Help yourself to a generous, 11-level serving of Portal: First Slice, the official demo for the game that challenges you to think with portals. The winner of numerous Game of the Year awards introduces you to the test chambers at the Aperture Science Enrichment Center, where you'll learn to solve physical puzzles by opening portals to...

View on Steam →

Recommendation

ProtonBlocked

Only Proton reports exist so far.

Compatibility

Proton

Blocked

✓CurrentLow confidence

1 report · Low confidence: very few recent reports yet.

NativeNone

No native Linux build — Proton only

Desktop

Blocked

✓CurrentLow confidence

1 report · Low confidence: very few recent reports yet.

HandheldUnknown

No reports yet

Anti-cheatUnknown

No anti-cheat reports yet

Details✓Current1 report · updated Feb 23, 2026More

Summary based mostly on historical data from ProtonDB. Fresh reports from your setup help keep it current.

Guide cards

No guide cards yet — curated troubleshooting for Portal: First Slice will appear here.

Reports (1)

PathDeviceFreshness

Showing 1 of 1 report

BlockedProtonDesktopHistorical · ProtonDB
Feb 23, 2026
Imported from ProtonDB (ODbL)

End of reports