NULL
𝕏
NULL DOCS

Pick a lock. Find what's inside.

NULL is an onchain discovery game on Robinhood Chain built around 1,000,000 numbered locks. Every lock can be opened once.

01 · HOW IT WORKS

One million locks. Choose the number.

Locks are numbered 1 through 1,000,000. You choose any lock that is still sealed. Once a lock is successfully opened, its result and original finder become part of the permanent NULL history.

01CONNECT

Connect an EVM wallet to Robinhood Chain.

02PICK

Choose any sealed lock number from the field.

03OPEN

Sign the onchain request and pay network gas.

04REVEAL

The request resolves after future-block randomness is available.

02 · ACCESS + BURN

Your first lock is free. Gas is not.

Every wallet receives one free lock opening from the game contract. The transaction still requires Robinhood Chain gas.

FIRST LOCKFREENETWORK GAS ONLY
PAID CAPACITY10,000 $NULLPER ADDITIONAL LOCK
BURN2,000 $NULL20% PER PAID LOCK

Holding 100,000 $NULL does not force you to open ten locks. It only creates up to ten paid-lock capacity units. You can choose one, three, or any amount you want within your available capacity. Burned $NULL remains part of your historical capacity so the burn itself does not erase an allowance you already qualified for.

03 · RESULTS

Most locks contain nothing. Some don't.

NULL

Most locks contain nothing.

TRACE

A small piece of lore or evidence left behind.

FRAGMENT

A non-NFT piece of something larger.

ARTIFACT

A finite ERC-721 NULL Artifact minted directly to the finder.

KEY

A rare finite NFT key. Golden Key is Legendary; NULL Key is Mythic 1/1.

04 · NULL ARTIFACTS

6,761 maximum NFTs across 10 artifact types.

Artifact and Key NFTs do not exist in a treasury waiting to be distributed. They are minted by the NULL Artifacts contract directly to the wallet that discovers them. Each type has a hard maximum supply.

#0001Burned PhotographCOMMON2,500 MAX
#0002Broken CompassCOMMON1,600 MAX
#0003Old CoinCOMMON900 MAX
#0004Silver FragmentUNCOMMON700 MAX
#0005Security CardUNCOMMON400 MAX
#0006Keeper MaskRARE350 MAX
#0007Signal ReceiverRARE180 MAX
#0008Black RelayLEGENDARY100 MAX
#0009Golden KeyLEGENDARY30 MAX
#0010NULL KeyMYTHIC1 MAX
05 · THE MAP

Every lock has one place in the field.

The NULL Map visualizes all one million lock numbers. Sealed, reserved, opened, artifact and key states can be indexed from contract events. Lock detail pages preserve the result, finder, transaction and NFT reference when applicable.

EXPLORE THE MAP
06 · RANDOMNESS

The lock number does not decide the prize.

Choosing a famous number does not reveal its result in advance. The request reserves the selected lock, then the contract uses a future Robinhood Chain L2 block hash when finalizing the request. NFT outcomes are sampled from the remaining finite artifact inventory. If the randomness window expires before finalization, the request can be cancelled, the locks reopen and escrowed burn tokens are refunded.

07 · SHARE

Every result has a permanent page.

Each opened lock can be shared to X from its result page. The share includes the lock URL and a dynamic card showing its number, result and rarity where applicable.

08 · FAQ
Do I need $NULL for my first lock?

No. The first game opening for each wallet is free, but network gas is still required.

Can I choose any lock number?

Yes, provided that lock is still sealed when your transaction is processed.

Does holding 100K force me to open ten locks?

No. Holdings define maximum paid capacity only. You choose how many locks to use.

What happens when I find an NFT?

The NFT is minted directly to the finder's wallet. Ownership can later change through normal ERC-721 transfers or supported marketplaces.

Can the same lock be opened twice?

No. A successfully opened lock is permanently opened.

Is an artifact guaranteed?

No. Most lock outcomes are non-NFT results, including NULL.

NULL is an onchain game. Transactions require gas, blockchain transactions are generally irreversible once confirmed, and randomized results do not guarantee an NFT or any market value.