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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.

SLEEPLESS -A Midsummer Night’s Dream- · Protondex

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SLEEPLESS -A Midsummer Night’s Dream-

#3935800

An erotic fantasy visual novel from the twisted mind of Sei Shoujo of Bible Black fame. Will it prove to be a sensual midsummer night's dream... or a tantalizing nightmare?

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Recommendation

ProtonReady

Only Proton reports exist so far.

Compatibility

Proton

Ready

✓CurrentLow confidence

2 reports · Low confidence: very few recent reports yet.

NativeNone

No native Linux build — Proton only

Desktop

Ready

✓CurrentLow confidence

2 reports · Low confidence: very few recent reports yet.

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:✓Current2 reports · last updated Feb 7, 2026

Guide cards

No guide cards yet — curated troubleshooting for SLEEPLESS -A Midsummer Night’s Dream- will appear here.

Reports (2)

PathOutcomeDeviceFreshnessAnti-cheat

2 of 2 reports

ReadyProtonDesktopHistorical · ProtonDB
Feb 7, 2026
Imported from ProtonDB (ODbL)
BlockedProtonDesktopHistorical · ProtonDB
Dec 28, 2025
Imported from ProtonDB (ODbL)