Lucky Races Integrates Chainlink VRF to Help Generate ‘Original Racer’ NFT Traits

We’re excited to announce that Lucky Races—a play-to-earn NFT metaverse racing game—has integrated Chainlink Verifiable Random Function (VRF) on Polygon mainnet. By integrating the industry-leading decentralized oracle network, we now have access to a tamper-proof and auditable source of randomness needed to generate unique genetic traits for each of our 10,000 Original Racers. Ultimately this creates a more exciting, transparent, and fraud-proof user experience, as users can rest assured that their chances of minting a racer with rare attributes are provably fair.

Original Racer NFTs are unique 3D characters with zany, fun personalities. They are also your entry into the Lucky Races metaverse, where you will race against other players for a chance to win our in-game token, $SLIVER.

To get an Original Racer, purchase an ERC-1155 Racer Key on your blockchain of choice (Ethereum, Polygon, Avalanche, Fantom, Arbitrum, or Optimism). Choose when to redeem your key. Once per day we will mint a batch of Original Racer ERC-721 NFTs for the keys that were redeemed. To generate attributes, each batch gets randomness from Chainlink VRF on Polygon and sends the Original Racers to their owners on Ethereum.

In order to generate the traits of our Original Racers in a provably fair way, we need access to a secure random number generator (RNG) that any user can independently audit. However, RNG solutions for smart contracts require several security considerations to prevent manipulation and ensure system integrity. For instance, RNG solutions derived from blockchain data like block hashes can be exploited by miners or validators, while off-chain RNG solutions derived from off-chain APIs are opaque and don’t provide users with definitive proof about the integrity of the process. 

After reviewing various solutions, we selected Chainlink VRF because it’s based on cutting-edge academic research, supported by a time-tested oracle network, and secured through the generation and on-chain verification of cryptographic proofs that prove the integrity of each random number supplied to smart contracts.

Chainlink VRF works by combining block data that is still unknown when the request is made with the oracle node’s pre-committed private key to generate both a random number and a cryptographic proof. The Lucky Races smart contract will only accept the random number input if it has a valid cryptographic proof, and the cryptographic proof can only be generated if the VRF process is tamper-proof. This provides our users with automated and verifiable assurances directly on-chain that the distribution of genetic traits for Original Racer NFTs is provably fair and was not tampered with by the oracle, outside entities, or the Lucky Races team.

After the Original Racer NFT launch, we will open the Lucky Races Beta game to our community.  Our game loop, powered by Chainlink Keepers, processes all player choices and actions fully on-chain.  The game loop calls on Chainlink VRF every Play Phase to power item pickups and other important game mechanics.  When we expand the metaverse to bring external NFTs into the game, we’ll rely on Chainlink VRF to generate their attributes!

“Randomness and on-chain processing are essential in fair play-to-earn gaming, and Chainlink sets the standard with VRF and Keepers. We would be struggling to build Lucky Races without the tools that Chainlink provides.”

Max Meier, Co-Founder

About Chainlink

Chainlink is the industry standard for building, accessing, and selling oracle services needed to power hybrid smart contracts on any blockchain. Chainlink oracle networks provide smart contracts with a way to reliably connect to any external API and leverage secure off-chain computations for enabling feature-rich applications. Chainlink currently secures tens of billions of dollars across DeFi, insurance, gaming, and other major industries, and offers global enterprises and leading data providers a universal gateway to all blockchains.

Learn more about Chainlink by visiting or reading the developer documentation at To discuss an integration, reach out to an expert

About Lucky Races

  • Lucky Races is a Play-to-Earn NFT Metaverse Racing Game on the Blockchain.
  • Players are part of zany, strategic fun on a shared game board!
  • Multiplayer Blockchain Races
  • On-chain, live, skill-based races where your choices matter.
  • Metaverse of NFTs
  • Bridge your NFTs into the Metaverse to join in, or mint one of our Original Racers.
  • Play to Earn $SLIVER Tokens
  • Earn $SLIVER, our in-game currency ERC-20 token, by racing against others or A.I.

To learn more about Lucky Races:

Why I Quit My Job To Make NFTs

Short answer: I didn’t. Not entirely. I’ll explain below…

I know, I know. You’re like “but… the title…”. We will get there, I promise.

I had a job that was becoming a career. I had been there for two years and three promotions. Everything was pretty stable, and while the work wasn’t exactly what I loved, my coworkers were awesome and my job wasn’t very difficult. Last August, my friends approached me about joining them to form a company to make a blockchain game, and it sounded like a great idea so we formed Lucky Machines, and started to get to work on Lucky Races.

Originally the project had nothing to do with NFTs, but we started to figure out how to raise money for the company and help fund the development of the game, and we didn’t like the idea of a Kickstarter or GoFundMe (we had little success with these platforms in the past). This was in Autumn of 2021 when the NFT “gold rush” was in full swing. Considering we were making a game specifically for the blockchain, we realized that this was the perfect opportunity to not only fund our project, but give our potential players a deeper investment in it, as well as prove the possibility that NFTs could push the web gaming space forward in a meaningful way.

With this decision came a new set of challenges though. Originally, for me specifically, it was entirely doable to balance a day job, working on the company in the evenings, and sharing quality time with my girlfriend. However, as we developed our 3D art pipeline and the workload grew substantially, my balancing act began to fall apart.

Burning out

As we were quietly eating dinner together one night, my lovely partner hit me with a one-two combination that left me reeling. She told me that I was tired and cranky all of the time, and that she felt like what little time we spent together wasn’t quality. She was right. Let’s unpack this. We both work, so the window of opportunity for quality time is already only a couple hours per day. At the time, my job had me from 9a-7p 6 days a week. We would come home, have 8p-10p to make and eat dinner, and then she would need to go to sleep because she gets up quite early. After she would retire to the bedroom, I would start my evening shift making 3D models in Maya. This would usually take me well into the 2a-3a hour, then I would quietly slip into bed and get about 5hrs of sleep (if I could turn my brain off, which rarely happened) before having to repeat the cycle. It was burning me out, and all three things were starting to suffer in quality because of that.

An important choice

I had a day job, a company with my best friends, and a loving partner. One had to go. It’s like a dying plant, you trim off the worst of it in hopes that the rest will recover. Obviously I wasn’t about to sacrifice my relationship, and the opportunity with our company was just too big to pass up. So, bye-bye day job. I sat down with my partner one night, we discussed the financial impact of the decision and she did something that proved why I’m so in love with her: she supported me. She said “I trust you. You can do this. We can do this.” The next day I told my bosses that they would have me until the end of the week.

They were startled, but understanding. On my last day they had me meet with the big boss in a last attempt to keep me on, but the decision was already made. It was a great conversation, and there’s no bad feelings between me and them, I just needed to move on to bigger and better things.

“So… you didn’t quit your job to make NFTs?”

Not entirely. I quit my job because the other things I had going on at the time were just more important. Coincidentally the more important things also included making NFTs. These things bring value into my life that the job just couldn’t. I put in 1.5x the hours per day on work now, but somehow have much more time to focus on the parts that really matter.

Thanks for giving me the opportunity to share a bit of my journey with you all!

-Daniel Dugan Co-Founder, 3D Artist, Game Designer