Cave Docs
Everything the game holds — how to play, what to gather, craft and fight, and the live prices of every item. Your wallet is your identity; gameplay is off-chain and gasless.
Overview
Cave is a 3D voxel, isometric multiplayer MMO that runs in your browser. Explore a shared world, harvest resources, craft and upgrade gear, fight in a dedicated arena, trade with other players and dress up your character.
- Wallet identity. You sign in with your wallet on Robinhood Chain (a signature — no transaction, no gas). It's just proof of who you are.
- Off-chain gameplay. Everything you do plays instantly off-chain. Only currency & identity are designed to live on-chain (a future deposit bridge).
- Server-authoritative. The server owns your inventory, coins, XP and the world, so progress is safe and consistent for everyone.
- Desktop only for now.
Getting started
- Connect your wallet from the home screen.
- Sign in — sign a short message to prove ownership (free, no gas).
- Pick a username the first time — this is your name in the world.
- You spawn in the Overworld with an Axe. Go gather, craft and explore.
Sessions last up to 6 hours and end after 30 minutes away — you'll just sign the message again. You can log out any time from the in-game Settings or the header's Sign out.
Controls
| Left click | Walk there · gather a tree/rock · fish water · talk to an NPC · enter a portal |
| W A S D | Nudge the camera (free-look) |
| Scroll | Zoom in / out |
| 1 – 6 | Select a hotbar slot (tool or potion) |
| Space | Swing your sword at the nearest enemy |
| Q | Drink a Health Potion |
| I | Open your inventory |
The world
The world is a set of connected areas you travel between through portals (doors, gates and glowing pads). Some areas have a level requirement.
Overworld
The town hub — statue plaza, winding paths and the doors to everywhere else.
Pine Forest
A peaceful wilderness of wood & stone, split by a river you cross on a bridge.
Stone Mine
A dark cave rich in stone.
Coal Mine
Level 3An anthracite cave — mine glossy black coal.
Gold Mine
Level 3A warm cavern of gold veins (a Steel Pickaxe is required to mine gold).
Gloomwood
Level 3The cursed combat arena — enemies roam here, including a boss. No harvesting.
Seaside
A turquoise harbour — fish from a long wooden pier over the open sea.
Clothes Shop
Level 2The Tailor's boutique — buy & wear cosmetics.
Casino
A neon salon — blackjack, roulette and slots.
Apartment
A hotel-style lobby entered from the Seaside.
House
Level 10A private interior home.
Resources
Harvest trees (Axe), rocks (Pickaxe — gold needs a Steel Pickaxe) and fish (Rod). Each harvest grants the resource plus XP. Reference market values (a guide — players set real prices on the market):
| Resource | Sell (each) | Buy (each) | XP |
|---|---|---|---|
| Wood | 1 | 2 | +4 |
| Stone | 2 | 4 | +5 |
| Fish | 3 | 6 | +6 |
| Coal | 5 | 10 | +8 |
| Gold | 20 | 40 | +14 |
Tools & crafting
You start with an Axe. Everything else is crafted at the Crafter NPC. Weapons & pickaxes upgrade through tiers — an upgrade burns the previous tier plus materials and $CAVE and grants a stronger, separate tool.
| Craft | Materials | $CAVE | Notes |
|---|---|---|---|
| ⛏️Pickaxe | 250 Wood | — | Mine stone & coal. |
| ⛏️Steel Pickaxe | 100 Wood · 150 Stone · 80 Coal · your Pickaxe | 400 | Upgrade your Pickaxe — required to mine GOLD. |
| 🎣Fishing Rod | 200 Wood · 100 Stone | — | Cast a line and catch fish. |
| 🗡️Sword | 80 Wood · 120 Stone · 25 Gold | — | A forged blade for Gloomwood. 22 dmg · 10% crit. |
| 🗡️Steel Sword | 90 Stone · 50 Coal · 25 Gold · your Sword | 500 | Upgrade your Sword — 42 dmg · 25% crit. |
| 🗡️Knight Sword | 200 Stone · 110 Coal · 60 Gold · your Steel Sword | 1,500 | Upgrade your Steel Sword — 70 dmg · 50% crit. |
| 🧪Health Potion | 3 Fish | — | Restore 10 HP. Press Q in a fight to drink one. |
You wield whichever sword tier you choose (not always the best owned), and extras are sellable on the market.
Combat — Gloomwood
Combat happens in Gloomwood (level 3+). It's skill-based: every enemy telegraphs its attack with a wind-up, and each kind strikes differently — so you dodge by moving, and a well-timed sword hit can interrupt a wind-up. Land crits for big damage.
Bandit
A baseline rogue — a single jab, but bandits are a gang: aggro one and the nearby bandits join in.
Marauder
A heavy brute with a wide frontal cleave — back out of the cone, don't circle.
Wraith
A fast, fragile spectre that circles erratically and lunges in on its strike — sidestep the dash.
Hexer
A robed caster that kites at range and hurls hex-bolts — keep moving out of their path.
Gloom Hound
A four-legged pack predator — it crouches, shivers… then pounces. The pack converges on whoever one hound spots.
Warden
A towering elite with a massive, brutal sweep — readable, but respect it.
Rune Golem
An animated monolith from the henge — a ground SLAM up close and a hurled rune-rock at range. Range is not safety.
Gloomwood Tyrant
The boss — huge HP, a ground SLAM, a summoned wraith escort at low health, and a fanned bolt-spread when enraged.
- Health. Your HP is shown as a bar. It only drops in combat — there is no passive regen.
- Health Potions (crafted from fish) restore HP — drink with Q. Keep a stock before a fight.
- Rewards. Kills grant XP and drop resources — every enemy drops gold (bigger foes drop more), which funds your upgrades.
- Death has stakes. Falling in Gloomwood burns your held weapon and casts you back to the Overworld at full HP — losing the blade is the setback.
Economy — $CAVE
$CAVE is the game's single currency, with a fixed supply of 1,000,000 — forever. It is designed to map onto an on-chain token (a future deposit/withdraw bridge).
- No faucet. Gameplay does not print new $CAVE. Combat and daily rewards pay resources (gold & materials), not token.
- How you earn it. By selling resources & items to other players on the market, and by winning in the casino.
- Where it goes. Buying from the system shop and paying crafting/upgrade costs removes token from circulation.
Marketplace
Visit the Merchant to open the player-to-player market. Everything is priced in $CAVE and traded between players — sellers set the price.
- Buy resources and items (clothing & tools) listed by other players.
- Sell your own resources, spare tools and cosmetics — list them at your price.
- Search and filter by category (Resources / Head / Body / Legs / Feet / Tools).
Wardrobe & cosmetics
Dress your character at the Tailor (Clothes Shop, level 2). Cosmetics have four slots — head, body, legs, feet — and are bought with $CAVE from the system shop (or from other players on the market). Everything stacks, so you can own duplicates. Prices below are live (loading…).
Head(19)
Body(19)
Legs(18)
Feet(15)
Casino
The neon Casino has three games of chance, all played in $CAVE. Walk up to a table and place your bet.
Blackjack
Beat the dealer to 21. Hit, Stand, Double, Split & Insurance. Blackjack pays 3:2.
Roulette
Bet a number, colour, dozen or split and spin the wheel.
Slots
Pull the lever — line up matching symbols across the reels for multiplied payouts.
Gamble responsibly — the house always keeps an edge.
Daily rewards
Log in each day for a 7-day streak of escalating resource rewards (common materials early, rarer ore later, a gold-and-coal haul on day 7). Miss a day and the streak resets. Daily rewards pay resources only — never $CAVE.
Progression
You earn XP from harvesting, fishing and combat. Levels gate some areas (Clothes Shop 2 · Coal/Gold Mine 3 · Gloomwood 3 · House 10). The first level takes 100 XP and each level after costs double the last (100 → 200 → 400 → 800 …), so every level is a real milestone.