Slumber Drift: Idle RPG

Last night's sleep decides today's sky.

Slumber Drift is a text-based airship game powered by your real sleep data. Sleep well, fly far. Sleep short, drift close. Every morning is a new departure from the same dock — but never the same voyage.

— HOW IT WORKS —

Connect Apple Health and set your sleep goal. Each morning, Slumber Drift reads last night's sleep and converts it into two stats:

VOYAGE POWER — How far your airship can fly. Determined by how many hours you slept relative to your personal goal.

DREAM LUCK — The quality of your journey. Shaped by sleep stage depth (Deep + REM). Apple Watch owners unlock the full ceiling; iPhone-only users reach a solid 0.8.

Tap Launch Voyage. Watch the text log scroll: crystal earnings, encounters, events, and zone transitions — all animated in 30 to 60 seconds.

— CHOOSE YOUR MOMENT —

At every encounter, you face a decision.

Retreat — lock in your crystals and end the voyage safely.
Press On — risk the encounter for more distance, better drops, and milestone rewards.

The further you fly, the harder the encounters. A well-rested crew flies farther. A lucky crew survives longer. Sometimes the right call is to turn back.

— BUILD YOUR AIRSHIP —

Every voyage drops equipment. Fit your airship with Engine, Hull, and Compass pieces to push your stats higher.

Rarity tiers: Common · Rare · Epic · Legendary

Higher rarities carry more affixes — and at Epic and Legendary, some of those affixes cut against you. A Legendary Compass might grant enormous crystal gains while quietly taxing your encounter odds. Choose wisely.

Reroll affixes with Drift Crystals. Sell what you don't need. Curate a loadout for your playstyle.

— DREAM TONICS —

Spend Drift Crystals on consumable Dream Tonics. Each tonic lasts a set number of leagues before dissolving. Seven types, from route extenders to crystal multipliers to encounter shields. Mix and match active tonics before each voyage to shape the day.

— SLEEP STREAKS —

Consecutive nights of good sleep build a streak. Streaks unlock tiered buffs — Gentle Breeze, Steady Wind, Strong Gale, and Eternal Trade Wind — that multiply crystal earnings and improve encounter odds. A streak is worth protecting.

— MILESTONES —

Reach Lg 50, 100, 150, or 200 and the sky rewards you: bonus crystals and a guaranteed rare equipment drop. These aren't random events — they're earned by flying far enough.

— HONEST DESIGN —

· No ads. No gacha. No pay-to-win.
· One voyage per day. No grinding.
· Your sleep data never leaves your device.
· Read-only access to Apple Health. Slumber Drift never writes.
· No server required. Works entirely offline.
· One-time Pro unlock. No subscription. No expiration.

— SLUMBER DRIFT PRO ($4.99) —

Free users experience the full game loop. Pro expands the depth:

· Up to 3 equipment drops per voyage (free: 1)
· Inventory expanded to 24 slots (free: 8)
· Up to 5 active Tonic slots (free: 2)

One-time purchase. Yours forever.

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Privacy: Slumber Drift requests read-only access to sleep data via Apple Health. All data is processed entirely on-device and is never transmitted or stored externally.