The Sleeping King
Arthur Pendragon, starving for an immortality his blood refused him, staged his own fall. Sealed in stasis by Merlin, he left his kingdom a single promise: only the Grail can wake the King.
A multiplayer idle RPG of descent
Under the Deep
The Cradle’s Secret
King Arthur sleeps. His knights are damned. The only thing that can wake him lies at the bottom of a hole in the world.
The Legend
The King lied. The Grail is real.
The Damned Knights
Blinded by loyalty, the knights of the Round Table bargained with demons — trading their humanity for the strength to keep searching. Four years of nothing. Then, a rumor.
The Cradle
Far to the south, a village clings to the rim of a bottomless chasm. At its floor, they say, waits an entity that grants the impossible. The knights are already descending. So will you.
The World
Eight zones. One way down.
The Cradle is a vertical world — every layer ruled by an element, every threshold earned. Prove yourself through a zone’s trials to descend further. No one has ever reached the bottom.
- Surface
The Village
The last lights before the dark. Forge, trade, prepare.
- I
Air
Winds with nowhere left to go.
- II
Nature
A forest that has never seen the sun.
- III
Earth
The bones of the world, laid bare.
- IV
Metal
Veins of ore, sharp as blades.
- V
Water
A drowned cathedral of currents.
- VI
Ice
Cold that remembers every visitor.
- VII
Lightning
Storms sealed under miles of stone.
- VIII
Fire
The forge at the heart of the dark.
- ???
The Dark Below
The charts end. The Cradle does not. Somewhere beneath, the Grail waits.
Your Weapons
Two gauntlets. One will.
Every delver wields a pair of elemental gauntlets. Pair two elements to weave combinations — or double one to push it beyond its limits.
Left gauntlet
Right gauntlet
Catalysis
Nature states can be consumed to empower Fire spells. A combination the Cradle rewards.
Six spells, cast by will alone
Build a loadout of six spells drawn from both your elements. In battle they fire on their own — your mastery lies in the build, not the button.
States are ammunition
Spells leave elemental states on your enemies. Other spells consume them for devastating bonuses — and some elements catalyse others entirely.
Choose your part
Support, Healer, Tank or DPS — every element leans toward a role. Your pair of gauntlets decides who you are when the party descends.
The Eight Elements
A wheel that forgives nothing
Every element prevails over one and yields to another. Knowing the wheel is the difference between a delver and a corpse.
Lightning
The Sealed Storm
- Domain
- Zone VII of the Cradle
- Callings
- DPS
- Prevails over
- Water
- Yields to
- Air
The Expedition
Gather. Craft. Fight. Go deeper.
Eight ancient trades feed one relentless loop — every resource pulled from the Cradle becomes the strength to descend another layer.
1
Gather
Mine, fell, farm and fish the riches of each layer.
2
Craft
Forge, cook, carve and engrave them into power.
3
Fight
Take your gauntlets into the dark and claim its spoils.
4
Ascend
Refine your gear, perfect your build — then go deeper.
MiningWoodcuttingFarmingFishingSmithingArtisanryCookingEngraving
The Cradle does not sleep
Queue your actions and close the tab — your expedition carries on without you. Return to collect what the dark has yielded.
Before you descend
Questions from the rim
What is Under the Deep?
A multiplayer idle RPG played in your browser. You descend a bottomless chasm through eight elemental zones — gathering, crafting and fighting with two elemental gauntlets — alongside every other delver in the Cradle.
Is it free to play?
Yes. There are no purchases, no subscriptions and no ads: everything in the game is earned by playing it.
Do I need to download anything?
No. Under the Deep runs in your web browser. Create an account, name your delver and take the first step down.
Does my character progress while I am away?
Yes. Queue your actions and close the tab: your delver keeps mining, crafting or fighting for up to 8 hours, and upgrades from the shop stretch that to 24.
Can I play with friends?
Parties of up to four take on dungeons and raids, guilds pool their efforts, and a shared chat and player marketplace tie the whole Cradle together.
I like Melvor Idle or skilling in RuneScape. Is this for me?
It shares their core: skills that grow while you are away, gathering that feeds crafting, gear that opens deeper zones. It adds live multiplayer on top — group fights, raids, guilds and a player-driven economy — and a combat system built on elemental combos.
How do I get in?
Under the Deep is in development and tested in closed playtests: while one runs, registration asks for an access key. Join the Discord to follow the next opening.
The Floor
The Grail waits at the bottom of the world.
Forge your gauntlets. Choose your elements. Take the first step down.
No one descends alone. Find a party, trade what you dredge up, and help shape the Cradle.