Player Guide
Everything you need to play Bullion mining on Robinhood Chain (chain id 4663). Rules below match default deploy settings; live ETH/GOLD prices come from the contract.
Quick start
- Connect an EVM wallet (MetaMask, Robinhood Wallet, etc.) on Robinhood Chain
- Shop → Rooms — buy your first room (Small Garage default 0.008 ETH)
- Shop → Miners — claim 2× free Basic Drill (T1), buy more if you want
- Shop → Loadout (or click a room on Mine) — equip miners that fit the room tier gate
- Mine → START — hash from all equipped rooms stacks
- CLAIM every 6 hours (or pay GOLD to skip cooldown)
No separate “create account” transaction — your profile is created on first purchase.
Room rules (the important part)
Every room type holds up to 8 miners. What changes is which miner tiers you can equip and the permanent hash multiplier on every miner in that room.
| Room | Max miners | Allowed miner tiers | Hash mult | Default ETH |
|---|---|---|---|---|
| Small Garage | 8 | T1–T2 only | 1.00× | 0.008 |
| Warehouse | 8 | T1–T3 | 1.10× | 0.006 |
| Bunker | 8 | T1–T4 | 1.25× | 0.02 |
| Hangar | 8 | T1–T5 | 1.50× | 0.06 |
| Space Station | 8 | T1–T9 (all) | 2.00× | 0.20 |
What this means in practice
- Small Garage can hold 8× Basic Drill (T1) or 8× Turbo Bore (T2) — or a mix — but not a Magma Drill (T5) or Singularity (T9).
- To use high-tier miners, buy a higher room type (new instance).
- To use more miners total, buy another room instance (up to 32 rooms per wallet). Each instance has its own loadout and own fuel timer.
Hash mult vs fuel — don’t confuse them
| Boost type | How you get it | Duration |
|---|---|---|
| Room hash mult (1.00× → 2.00×) | Built into the room type you bought with ETH | Permanent for that room |
| Fuel (2× / 3× / 5×) | Pay GOLD on one room instance | 6 hours |
You cannot buy a higher room mult on a Small Garage. Upgrade path = buy Warehouse / Bunker / Hangar / Space Station.
Formula per miner:
effectiveHash = baseHash × roomMult × fuelMult
Miners
9 tiers. Fixed base hash — no leveling. Buy higher tiers or stack more units.
| Tier | Name | Base hash | Default buy (ETH) |
|---|---|---|---|
| 1 | Basic Drill | 10 | 0.001* |
| 2 | Turbo Bore | 25 | 0.003 |
| 3 | Deep Seeker | 50 | 0.008 |
| 4 | Core Breaker | 100 | 0.02 |
| 5 | Magma Drill | 250 | 0.05 |
| 6 | Void Piercer | 600 | 0.12 |
| 7 | Nebula Rig | 1,500 | 0.30 |
| 8 | Quasar Unit | 4,000 | 0.80 |
| 9 | Singularity | 10,000 | 2.00 |
* First 2 Basic Drills per wallet are free.
- Max 64 miners per wallet
- One miner → one room at a time
- Miners on claim cooldown contribute 0 hash until cooldown ends or you pay GOLD to skip
Mining, claims & cooldown
| Rule | Default |
|---|---|
| Emission | 0.0001 GOLD per hash per second |
| Claim cooldown | 6 hours after each claim |
| Skip cooldown | 500 GOLD |
| Fuel (2× / 3× / 5×) | 2,000 GOLD each, lasts 6 h |
After you claim, equipped miners rest (cooldown). Mining stops until you start again or bypass cooldown.
Total hash = sum of effective hash from every equipped miner in every room you own (while mining is active and miners not on cooldown).
How much can you earn?
See Mining Math for formulas. Quick reference:
GOLD/day = totalEffectiveHash × 8.64
Launch reference price (marketing): ~$0.00317 / GOLD — not guaranteed.
Examples (solo, no fuel, no cooldowns)
8× Basic Drill in Small Garage
| Total hash | 8 × 10 × 1.0 = 80 |
| GOLD/day | ~691 |
| ≈ USD @ $0.00317 | ~$2.19 |
8× Deep Seeker in Warehouse
| Total hash | 8 × 50 × 1.1 = 440 |
| GOLD/day | ~3,802 |
| ≈ USD | ~$12 |
8× Singularity in Space Station
| Total hash | 8 × 10,000 × 2.0 = 160,000 |
| GOLD/day | ~1,382,400 |
| ≈ USD | ~$4,382 |
Shared pool warning
All players share 14,700,000 GOLD (70% of supply). These numbers assume you’re mining alone — real yield drops as more players join. Treat early estimates as illustrations, not promises.
Room tier cooldown (buying higher room types)
This is not a room upgrade — it only gates buying a higher tier type than your current best.
After you buy at your highest owned tier, wait 5 seconds before buying the next tier up.
| Allowed anytime | Blocked until timer ends |
|---|---|
| Same tier again (duplicate room) | Any tier above your highest |
| Any tier below your highest |
Example: buy Small Garage → wait 5s before Warehouse. During wait you can buy another Small Garage.
Legacy wallets may still show an old 12-hour timer until the mine contract is upgraded on-chain.
Rooms do not upgrade
There is no “upgrade room” button. You never pay ETH to add slots or raise tier gate on an existing instance.
Progression:
- Duplicate room — same rules, second loadout (e.g. two garages = 16 equipped T1–T2 slots total)
- Higher room type — better mult + stronger miners allowed
- Fuel — short-term GOLD boost on one instance
Referrals
| Source | Referrer gets |
|---|---|
| ETH shop (rooms, miners) | 5% instant to referrer wallet |
| GOLD claims | 5% (referrer claims separately) |
Share link with ?ref= or ?r= on first room purchase. No referrer → ETH goes 100% to treasury.
GOLD sinks (what you spend GOLD on)
| Action | Default cost |
|---|---|
| Skip claim / miner cooldown | 500 GOLD |
| Fuel 2×, 3×, or 5× | 2,000 GOLD each |
Decorations
Free cosmetics (Cash Cat, Robinhood Feather) — mint once on-chain (gas only). They appear in all your rooms when owned. Purely cosmetic — draggable per room in the mine UI.
FAQ
Why is my garage only 1.00× mult?
It’s the starter room. Mult is fixed per room type — buy Warehouse+ for higher permanent mult.
Why can’t I equip my T5 miner in the garage?
Tier gate. Small Garage only accepts T1–T2. Buy Bunker or higher.
Do all my rooms mine at once?
Yes — hash from all equipped rooms adds together while mining is active.
What happens when the 14.7M pool runs out?
Claims stop paying. The cap is enforced on-chain.
Contracts (mainnet 4663)
| Token / contract | Address |
|---|---|
| GOLD | 0xc665b4f56034eD23FF180beE2cebACEb53943750 |
| BullionMine | 0xDAacbE36af8fE1AE9a089D0963D795067EeF04e1 |
| Miner1155 | 0x6Ee29870E2033cadE642741e223166CB5FD7147a |
| BullionTaxHook | 0x25Ee42d65b9B86F99744b6879E28b51B23ED00Cc |
Mine app: mine.bulliondotfun.com
Related docs
- Mining System Overview — concepts & flow
- Mining Math — formulas & worked examples
- Tokenomics — supply, taxes, allocations