Trade Age of Rust Items on OpenSea!

We’re excited to announce that Age of Rust items are now tradable on OpenSea!

According to the Age of Rust website, Age of Rust is

A dark sci-fi adventure game set in the vast expanse of the universe. You’ll explore abandoned space stations, mysterious caverns, and ruins on far away worlds. On the way, you’ll unlock puzzles and secrets to light the way forward.

Age of Rust’s founder, aliased cloverme, shared an interesting story with us about the early days of Age of Rust:

We started on Counterparty back in 2017 for a couple of reasons, the big one was that ERC20 and ERC721 were still in their early days back then. Plus, blockchain games at that time were mostly Counterparty based. Our MVP game was a text-adventure token-enabled game that used the Counterparty tokens.

To take a step back, Counterparty was a token platform that used the Bitcoin blockchain. It had a really good community but services and games started to move away from it towards Ethereum. Before segwit and lightning, running anything on top of Bitcoin was a bit of a struggle, so players moved over to Ethereum too.

So earlier this year, I created a token wizard to migrate our Counterparty tokens over to Enjin tokens. Our hodlers sent their Counterparty tokens to a burner address and in return they received the new Enjin backed ERC1155 tokens. It was a good move — Counterparty was eventually delisted from the majority of exchanges. So the Counterparty community is now kind of isolated.

It’s been exciting to move to Ethereum and Enjin because the players have access to easy to use wallets and services like OpenSea to buy and sell assets, which was very very difficult on Counterparty.

Age of Rust’s roots run deep and they’ve consistently shown that they prioritize player experience over loyalty to any given tech stack. If you’re still not convinced that Age of Rust is a game worth experiencing, watch this trailer:

It looks incredible! Token Gamer called it the most beautiful blockchain game, and it’s easy to see why. If you’re ready to get in on the action, check out the selection of Age of Rust items on OpenSea here.

Why list your Age of Rust items on OpenSea?

Keep your items in your wallet while they’re on sale

You can create an auction for an Age of Rust item but keep it in your own wallet while it’s on sale. That way, you can still use your Age of Rust items, even while they’re listed on the market! You can learn more about this feature here.

List Age of Rust items without paying gas

Once you’ve set up your OpenSea account, you can list your Age of Rust items without paying gas or waiting for confirmation from the blockchain. When you list an Age of Rust item, you just configure your listing and sign it with MetaMask. When the item is purchased, the buyer submits a transaction, and the deal is done.

Accept bids for your Age of Rust items

Not sure how to price your Age of Rust item? You don’t have to! Other users can bid on an Age of Rust item (even if it’s not on sale!) without any action from its owner. The owner can immediately fulfill these bids, receiving WETH in exchange for the Age of Rust item. But act quickly — other holders of the token can fulfill the offer, too!

Sell Age of Rust items by the lot

If you’ve got a dozen smoke grenades and you only need a few, you can list the extras all as a single lot. Plus, it’s gasless! Just set your total price and the quantity you want to sell, then sign the listing with MetaMask. Make sure to double check the unit price, first, though.

Get more exposure

Tens of thousands of users browse OpenSea for all sorts of game items, collectibles, digital artwork, and more. By listing your Age of Rust items alongside other collectibles, you gain a ton of exposure.

Interested in joining the Age of Rust discussion? Check out their Discord server. Or to see what else is brewing in the world of NFTs, join us over at the OpenSea Discord server.


Now open: ERC1155 Marketplace!

Today, OpenSea is announcing a new type of tradable digital assets on the marketplace: ERC-1155 items. In short, these are like ERC-721 items, but they have different behavior and more flexibility, which we’ll explain below. It’s a new Ethereum token standard and a new type of dapp on OpenSea!

ERC-1155 items have been tradable on OpenSea for a while now (there are over 200,000 that you can find already), but today they get the full attention that they deserve. Let’s start with what’s new in 1155. Then we’ll explain how you can get started trading, which games are already supported (17 so far!), and how developers can make 1155-compliant dapps!

What is ERC-1155 and What’s New

The ERC-1155 token standard provides a way to make one smart contract govern almost an unlimited number of tokens — technically, 2²⁵⁶ token types with up to 2²⁵⁶ copies of each. Additionally, each token is semi-fungible. Unlike ERC-721 non-fungible tokens (NFTs), which can only be owned by one address each, semi-fungible means:

  1. Each token type can be owned by multiple addresses
  2. One address can own multiple copies of each token

This expands the design space for building game economies and provides efficiency benefits as well. ERC-1155 is a result of the combined efforts of multiple companies working together to achieve these two goals, including EnjinHorizon Games, and The Sandbox.

What’s needed now is a marketplace for the (at the time of writing) 208,319 new semi-fungible assets on Ethereum! And that’s what’s here today:


How to Trade ERC-1155 Tokens on OpenSea

Check out your OpenSea account page to see which items you already own, or visit the supported collections on OpenSea (listed below) to buy one.

To sell an ERC-1155 item, it’s as simple as clicking Sell, and then specifying the total price and quantity you want to sell. If you specify an end date, the price will decline to the amount you want until the end date is reached, and then your listing will be automatically cancelled (expired) for free.

You only have to pay gas the first time do you sell an item (which may include approving the token for trading). If you want to sell for Enjin ENJ, Sandbox SAND, or another payment token, click the dropdown below and set your price:

Selling an ERC-1155 item on OpenSea. Available payment tokens depend on the developer’s preferences.

Placing Offers

As with other tokens on OpenSea, you can place offers on 1155 items by clicking “Make an Offer” on the item’s page. Offers are non-binding, but because an item can have multiple owners now and any owner can accept it for you, many people will consider your offer at once!

ERC-1155 Games on OpenSea

Even before this official launch announcement, there are already 17 games on OpenSea using mainnet ERC-1155 contracts, and many are already ranked in the top fifteen dapps by volume. Special thanks to all of them for working with us to make a great marketplace experience.

You can also see these games with the “new” label on the OpenSea rankings page, ranked by weekly volume. Here are three examples:

Age of Rust Marketplace on OpenSea: Buy, sell, and explore digital assets

Year 4424: The search begins for new life on the other side of the galaxy. Explore abandoned space stations, mysterious caverns, and ruins on far away worlds in order to unlock puzzles and secrets! Beware the rogue machines!

Spirit Clash Marketplace on OpenSea: Buy, sell, and explore digital assets

Spirit Clash is a battle for supremacy. You must clash your way through the three spiritual cores of Mind, Body, and Soul to claim victory. The first player to control two of the cores wins the game, but your opponent won’t let you take them easily. Summon Followers that will clash for your Overlord.

The Six Dragons Marketplace on OpenSea: Buy, sell, and explore digital assets

Welcome to The Six Dragons, the first Open World RPG powered by Blockchain Technology. Discover 64km2 of Open-World full of surprises, escape 1 billion dungeons, craft items that you truly own and participate in a player-owned, decentralized economy with real-world value.

How to Create ERC-1155 NFTs on OpenSea

Updated Jan 13, 2021

If you’d like to quickly make ERC1155 items without coding or paying gas, read this blog post introducing our new Collection Manager.

Information for Developers

Interested in deploying an ERC-1155 contract on OpenSea? If you already have an 1155 contract on mainnet or the Rinkeby testnet, there’s a chance that OpenSea automatically discovered your items! You can also use the Get Listed flow to have OpenSea re-crawl the items and add them to the marketplace:

Mainnet: https://opensea.io/get-listed

Rinkeby: https://rinkeby.opensea.io/get-listed

Don’t have a contract yet?

We can help you get started. Here’s a work-in-progress tutorial and codebase for creating your own ERC-1155 contract.

Contact us in the #developers channel on Discord or on Telegram! We’re very responsive 🙂

What’s Coming Next

Crowdsales, gas-free pre-sales, and whitelisted airdrops using ERC-1155! Stay tuned using any of the following channels, ranked by signal-to-noise ratio 😉

Sam from Spirit Clash in their Telegram