Courier

Welcome to the planetA tiny town to explore, and a game that lives on Robinhood Chain.

Courier World is a little planet you can walk all the way round. You're its courier: run and jump about, fly to the moon and Mars, and chat with the people who live there and with other players. Behind the town is an on-chain economy: 3,333 Courier NFTs work out of player-run post offices and earn $STAMP, which trades in a Uniswap pool.

Walking about is free and needs nothing but a browser. A wallet on Robinhood Chain lets you play as your own couriers, run a post office and earn. Exploring and chatting are just for fun: they never earn $STAMP, which only comes from couriers on duty at post offices.

PlayingExplore, chat, take photos, fly to the moon and Mars.

What earns $STAMP

Nothing you do on the planet earns $STAMP by itself: it comes only from couriers on duty at a post office (see Post offices). When the treasury runs a drop, the treasure hunt's coins pay that token. (Once the planet worlds are in the game, a planet's owner can also charge visitors a ticket: that's other players' $STAMP changing hands, not new $STAMP.)

Places

Chat

Talk to everyone on the planet in any language: press Enter (or tap 💬 Tap to chat on a phone), type, and send. Your message shows in the chat box and as a speech bubble over your courier. Text only: links and wallet addresses aren't allowed, so nobody can post scams, and messages are up to 140 characters, one every two seconds. Tap someone's name in the chat box to mute them; the settings (⚙︎) can hide chat or unmute everyone.

Photos

Tap 📷 (or press C) for photo mode. The buttons step aside and the camera is yours: drag to look all the way round, from overhead down to the ground looking up at the sky; scroll or pinch to zoom from the whole planet's curve right in to your courier's eyes. Set the clock to any hour (sunsets are lovely), hide your courier if you like, then press the shutter (or Space) to save the picture, or share it straight from your phone. Press C, Esc or Done to go back to playing.

Your name

Players show as their wallet address (or "Guest"). To pick a name instead, open the Post Office panel, tap ✏️ Pick a name, type 3 to 15 letters, numbers or _, and save: your wallet signs to confirm (free, no transaction). Your name then shows on your name tag, in chat, on your post office and on the leaderboard. Names are first come, first served, and you can change yours once a day (or go back to your wallet address).

Ads on the Orb

The Orb shows paid ads from other projects, each for a set time (several take turns every 20 seconds), and the ad on it also plays on Times Square's big screens. Tapping either opens the ad's card with its website and chart. Every ad is checked by the team before it goes up, but an ad is not an endorsement: always do your own research before you buy anything or connect your wallet. Want your project on the Orb? DM @PlayCourierWld on X.

The moon and Mars

The rocket in the neon district is the Space Express. Stand by it and press E (or tap Hi), then pick where to fly:

• The moon (100 $STAMP): a small grey world of craters and rocks, with Courier World hanging in a black, starry sky. Gravity is low, so jumps go about three times as high. The moon frogs live up there: Officer Zorp greets new arrivals at the pad, Captain Gloop, Blib and Kiki hang out at Moon Base, Professor Tadwick maps the stars at his telescope, and Old Croak keeps to his hut on the far side. Look up, too: their flying saucer circles the moon.
• Mars (200 $STAMP): a red world as big as Courier World, with two little moons in a butterscotch sky. You land at the spaceport, by two tall rockets and a launch tower. Mars City is next door: a big glass plaza dome you can walk into, with a garden and a fountain, ringed by greenhouses, homes, pools, farms and a ring road. Red mountains rise beyond it, and further round there's a long winding canyon, a big sleeping volcano and an ice cap at the bottom. Twenty locals live there: seven Martians (Mayor Zibble, Dr. Rusta, Pip, Geo, Old Ozzy, Tula and Nix) and thirteen astronaut colonists, from Commander Ada in the plaza to Climber Juno up in the mountains. Pip's rover is parked in the garage by the spaceport: press E by it to hop in and drive, and E again to hop out. Every seven minutes or so a dust storm blows through for a minute and a half.

Couriers on the same world see and chat with each other. Walk up to anyone, frog, Martian or astronaut, and press E to chat. The arrow at the top points the way back to the rocket.

A ticket is sent from your wallet to the Courier World treasury and lasts an hour: fly home any time from the rocket by the landing pad, and the rocket brings you home when it runs out. You need to be logged in and signed in to the hunt (a free signature) so the game's server can check your ticket. Your ticket survives a reload: fly back from the neon district.

Days pass every 12 minutes, showers roll over now and then, and the town's people wave, chat and go about their day.

Couriers3,333 NFTs with fully on-chain art.

Every courier has a look and a ride, fixed at the reveal by a secret committed before the mint, so nobody could snipe the rare ones. The art is drawn on-chain as a postage stamp: its value shows the courier's delivery power, a badge shows its level, and an ON DUTY postmark appears while it works. Log in with a wallet that holds couriers and you play as one.

The mint is over. Couriers trade on OpenSea, with a 5% royalty on sales. A courier on duty can't be transferred until you take it off duty.

Courier Skins999 limited outfits and rides to wear in the game.

Skins change how you look, to you and to every player around you. They never change what you earn: $STAMP only comes from couriers on duty at post offices. Mint them in the Post office panel, then press Wear on one you own.

• Blind mint. Every skin is sealed until the mint ends, then revealed by a secret committed before the mint, mixed with a block hash at the reveal, so nobody (the team included) can pick the rare ones.
• Rides are faster to get around on: the Neon Scooter, Hoverboard, Neon Bike and Moonwedge each have their own speed.
• The 5% royalty is enforced. The contract checks every transfer: marketplaces can only sell skins in trades that pay it, so the royalty can't be skipped. You can always move your own skins between your wallets.
• Other players see your skin only if your wallet really owns it: the game's server checks it on-chain.
• Pay in ETH or $STAMP. Each skin costs 0.004 ETH, or 150 $STAMP (one signature, no separate approval). The same 999 skins either way.

CompanionsLittle friends that follow your courier around.

A companion walks (or hovers) along behind your courier wherever you go, on the planet, the moon and Mars. They're bought only with $STAMP, in the Post office panel, and every bit of it goes to the Courier World treasury. Own more than one? They can all follow you at once, in pairs behind your courier: pick which ones in the panel. Every player around you sees them too: the game's server checks on chain that your wallet owns them.

• Limited for good. Each kind's supply can only shrink, never grow, and every companion is minted by a buy at its listed price: there's no free mint. (The treasury is Courier World's own, so if the team bought one, its $STAMP would just come back to the team.) The mecha, the colossus and the anime companions are Courier World's own designs.
• Buy them one at a time, up to each kind's wallet limit in the table, with one signature (no separate approval), and never for more than the price you saw. Wallet limits count what you've bought, so passing a companion on doesn't free up another buy.
• Companions are just for fun: they never change what you earn.
• Every kind has a wallet limit, so no one wallet can buy up a kind (it counts per wallet, not per person).
• The 5% royalty is enforced (the owner can change the rate, never above 10%). The contract checks every transfer: marketplaces can only sell companions in trades that pay it, to the treasury. You can always move your own companions between your wallets.
• The owner (the treasury) sets the prices and opens or closes each kind's sale. Your companions and your $STAMP are never within its reach, and ownership can be handed on but never thrown away.

The contract: 0x4254…49B7. Reviewed by IMD Swarm (audit report); its findings were fixed afterwards.

Planets333 worlds of your own.

Each Courier Planet will be a world of its own inside Courier World: its owner will explore it and build on it, and can open it to other players for a ticket in $STAMP. A daily treasure on your planet is planned too. Buy one in the Post office panel, with $STAMP only: every bit of it goes to the Courier World treasury.

The planet worlds aren't in the game yet: they come next. Buy a planet now and its world is waiting for you when they land. Until then a planet is yours to hold, see in the panel and trade.

• Tickets (once the worlds are in the game). You decide who visits your planet: keep it closed, let everyone in free, or set a ticket of up to 1,000 $STAMP. 80% of every ticket goes straight to you and 20% to the treasury (the treasury can change its share, but never above half). A planet that changes hands starts closed, so a new owner always sets their own ticket.
• Every planet has the same rights. Each one's look (its type, rings, moons and sky) comes from its number; the rarest kinds are just for show. The looks are public from the start, and planets sell in number order: each buy gets the next numbers in line.
• One signature buys up to 3 (no separate approval), never for more than the price you saw. The wallet limit counts what you've bought, so passing a planet on doesn't free up another buy.
• The 5% royalty is enforced and fixed. The contract checks every transfer: marketplaces can only sell planets in trades that pay it, to the treasury. You can always move your own planets between your wallets.
• The owner (the treasury) sets the price, the wallet limit and the treasury's share of tickets, opens or closes the sale, and chooses where the pictures and details live and which transfer checker enforces the royalty (OpenSea's, today; a bad one could hold transfers up). It can't move your planets, set your ticket or touch your $STAMP, and ownership can be handed on but never thrown away.

The contract: 0xE7F9…e7e3, source verified on Sourcify. Not audited by an outside firm: our own review and tests are in the audit brief (section 14).

FishingFree for post office owners: keep what you catch as NFTs.

Stand on the pier, on a bridge over the bay, or at the water's edge, face the water and press E (tap Hi on a phone). When the float dips, press E again to hook the fish, then hold E to reel and let go to give it line: keep the marker in the green until it's in. Walk off and you reel in. The game's server picks when a fish bites, checks you really stood at the water, didn't land it before the bite and stayed put, and picks the species only once it's landed, so letting fish go never helps.

• Free, with a daily limit. Up to 10 fish a wallet a day (UTC) at launch. You need an open post office (0.005 ETH) to fish, and the treasure hunt's sign-in: one signature, free.
• Mint them as Courier Fish NFTs in the Post office panel: every day's catch in one transaction, paying only gas, on the day of the catch or the 6 days after (UTC). Each species is its own token: 24 to collect.
• When a rare species is out for the day (or for good), you catch another of the same rarity; only once every species of that rarity is out does the catch drop to a commoner one. Fish never change what you earn.
• The 5% royalty is enforced and fixed, like the planets': marketplaces can only sell fish in trades that pay it.
• The owner (the treasury) can pause minting, replace the server's key, add species, change any species' daily cap and the daily limit (up to 50), cap a species or lower its total (never raise it), and choose where the pictures and details live and which transfer checker enforces the royalty (OpenSea's today; a bad one could hold transfers up). Lowering the limit, or a pause longer than the mint window, can cost fish caught but not yet minted. It can't move or take your fish.

The contract: 0xacF3…9c90, source verified on Sourcify. Not audited by an outside firm: our own review and tests are in the audit brief (section 15).

Post officesPut couriers to work and collect $STAMP.

Open a post office for 0.005 ETH. It comes with a trainee courier (60 power) who starts work straight away, so you can earn before you own an NFT. Put your own couriers on duty to add their power. Each office has a number of desks (couriers on duty at once) and routes; faster rides use more routes.

Upgrades go one tier at a time, with a 24-hour wait between them. Collect your $STAMP whenever you like from the post office panel.

Invite friends: when someone opens an office with your invite, you get 2.5% of what their office collects (taken from their share).

LevelsTrain a courier for more power.

Couriers go from level 1 to 10. Each level adds +12% to its base power, so a level 10 courier has 2.08× the power it started with. Training costs 25 × level² $STAMP, and levels stay with the NFT if it changes hands.

From level 1 to 10 costs 7,125 $STAMP in all.

$STAMPThe town's token: 21 million, ever.

Your share of each block's reward is your offices' delivery power over everyone's.

TradingBuy and sell $STAMP right in the game.

• $STAMP trades against IMD in one Uniswap v4 pool. Trade with IMD, or with ETH (routed through the IMD/ETH pool), from the post office panel.
• Every swap pays a 4% fee on its IMD side. Plain transfers, and everything the game does, are never taxed.
• The launch liquidity is $STAMP only and locked forever, so sells fill once buys have brought IMD into the pool.
• Each trade shows a quote with fees and price impact included, and is protected by a slippage limit.

Nothing here is financial advice. Tokens can lose value; only trade what you're happy to lose.

LaunchpadLaunch your own token, right in Times Square.

• The Launchpad is the ground floor of Times Square's corner tower: walk up and press E (or Hi), tap its sign, press L, or use the button in the post office panel.
• Anyone with a post office can launch a token. Give it a name, a symbol, a picture, a description and links. Launching burns 100 $STAMP.
• Every token has 1,000,000,000 supply and no owner, no minting and no tax. 95% goes into its own pool against IMD, locked for good, so it can always be traded. 5% goes to the Courier World treasury for drops to post offices.
• Every launch starts at the same market cap (about $5,000). Buy and sell any token with ETH or IMD from its page; every trade pays a 4% fee on its IMD side to Courier World.
• The three biggest tokens (by market cap) show on a Top 3 coins screen in Times Square, and the five biggest on the ticker.

Tokens are made by players, not by Courier World. Most go to zero: do your own research. Tokens that copy the game's own names or break the rules aren't shown in the game, but still trade on-chain.

Treasure huntReal tokens scattered round the planet as coins.

• The treasury drops real tokens, from the Launchpad and from partner projects (such as $MINE), round the planet as coins with the token's picture on them. They're out at new spots every day (00:00 UTC), in the open, up high, or where only a jump reaches.
• Walk into a coin to collect it. Every player can collect every coin, and your finds show in the post office panel's Treasure hunt section.
• Only players with a post office open can redeem. Sign in to the hunt once (a free signature, no transaction), then claim everything you've found, every drop at once. Launchpad tokens and partner tokens are paid by separate contracts, so when you've found both, your wallet asks twice. Claim by the end of the next day (UTC).
• Each drop pays a few coins per wallet a day, and a set number a day across everyone, while its tokens last. The game's server checks every find against where you've actually been.
• While a drop is on, a running line across the top of the screen says how many coins are out today (and how many you've found), how many are left to claim today, what each pays and when the next ones come out. The Post Office panel's Treasure hunt section shows the same, with a bar of today's coins left to claim.
• Times Square's screens and ticker say which coins are out.

The tokens come from the Courier World treasury (5% of every Launchpad launch, and partner projects' tokens). Drops are funded only by the treasury, which can pause claims if anything looks wrong. The drops contract was reviewed by IMD Swarm: read the audit. The partner drops use the same contract; the small list that says which partner tokens it can drop was reviewed by us (see AUDIT.md, section 16).

SafetyNobody holds the keys.

• Ownership of the NFT, its renderer, $STAMP and the pool's hook was renounced at launch. The post office never had an owner. Nobody can change the rules, mint extra tokens or move anyone's couriers.
• The courier art is frozen for good.
• Every contract's source code is verified on the explorer and published on GitHub.
• The contracts were reviewed by IMD Swarm: read the audit report.
• The Launchpad keeps an owner, who can change the launch fee (at most 100,000 $STAMP) and the starting price of new launches; a launch on its way never pays more or starts elsewhere than it showed. The owner can't touch launched tokens, their pools or anyone's balances, and their liquidity can never be removed. Reviewed by IMD Swarm: read the Launchpad audit.

ContractsRobinhood Chain (chain ID 4663).