Slumber Drift
Sleep-Powered Voyage Game
Your sleep powers the wind. The deeper you rest, the further your airship drifts — navigating encounters, earning crystals, and collecting equipment across four sky zones.
Download on the App Store
"The sky stretches endlessly above. Each night you rest, the wind grows stronger.
How far will your airship drift today?"
How It Works
Sleep
Get a good night's rest. HealthKit reads your sleep data automatically.
Wake Up
Open the app. Your sleep becomes two stats: Voyage Power and Dream Luck.
Launch
Tap Launch Voyage. Your airship drifts through leagues, encountering events and threats.
Decide
At each encounter, choose: Retreat to keep your crystals, or Press On and risk it all.
Features
Sleep-Powered Stats
Your sleep quality translates into Voyage Power and Dream Luck. Better sleep means further voyages and better encounter odds.
Interactive Encounters
Every 10 leagues, face a new challenge. Choose to retreat safely or press on — risk 30% of your crystals for greater rewards.
Equipment & Affixes
Earn equipment drops with randomized affixes. Four rarities — Common, Rare, Epic, Legendary — each with unique stat bonuses.
Dream Tonics
Buy tonics with crystals to boost encounters, crystals, or route distance. Manage tonic slots and durations strategically.
Sleep Streaks
Consecutive nights of good sleep unlock streak buffs — crystal multipliers, encounter bonuses, and rare drop chances.
Four Sky Zones
Drift through The Shallows, The Open Sky, Fog Archipelago, and The Edge of Dreams — each with unique events and encounters.
Your Daily Routine
~2 minutes a day. That's all it takes.
Launch
Review your stats, check your equipment, tap Launch Voyage. ~30 seconds.
Navigate Encounters
Watch the voyage log unfold. At each encounter, decide: Retreat or Press On. ~1–2 minutes.
Collect Rewards
Earn crystals, discover equipment drops, and hit milestones. Manage your inventory and tonics.
Sleep Well
The better you rest, the stronger your stats tomorrow. Build your streak for bonus rewards.
Requirements
Platform
iPhone (iOS 18.0+)
Orientation
Portrait only
HealthKit
Read-only (optional)
Apple Watch
Enhanced, not required
Network
Fully offline
Server
None — on-device
Free vs Pro
No ads. No subscriptions. Pay once, voyage forever.
| Feature | Free | Pro |
|---|---|---|
| All voyages, encounters & game mechanics | ✓ | ✓ |
| Equipment drops (1 per voyage) | ✓ | ✓ |
| Dream Tonics (2 slots) | ✓ | ✓ |
| Streak buffs & milestones | ✓ | ✓ |
| Equipment drops (up to 3 per voyage) | — | ✓ |
| 24 inventory slots (vs 8) | — | ✓ |
| Expandable tonic slots | — | ✓ |