Funkii, a senior developer on Sui responsible for launching the popular meme coin, MANIFEST, has done it again. He recently shared how he built FAITH, a fully on-chain economic system, in only two weeks. He did not build it to launch a new product. He built it to test how far Sui can go without using any off-chain tools or servers. His results show how simple and fast Sui can be for real builders.
Why He Built FAITH
Having worked in software/crypto engineering for about 20 years, Funkii is used to slow tools, broken setups, and long debugging sessions. Most blockchains also force developers to move some logic off-chain. He expected the same thing when he started FAITH.
But on Sui, that moment never came. The process felt like building a normal web app. Everything stayed on-chain, and nothing slowed him down.
Why Sui Was Different

Several Sui features made the work easier:
- Built-in randomness with sui::random, so no oracle was needed
- Move’s object model, which let him use clean data structures
- Fast transaction times that kept the game loop smooth
- Very cheap gas fees, making 100+ mainnet deployments cost only a few dollars
- Clear error messages and useful tools, including Sui’s AI assistant
Because of this, his workflow was simple: write code, deploy, test, and repeat. He did not need testnets, backend servers, or special setups. The full cost of building FAITH stayed in the tens of dollars. On most EVM chains, this would take months, require a backend, need heavy gas tuning, and cost a large amount of money. Sui removed all of those problems.
What Faith Is And Why It Matters

FAITH may look like a simple grid game, but the system behind it is much deeper. Every major action happens on-chain:
- jackpot rolls
- SUI rewards
- time-based updates
- buybacks
- treasury routing
- gasless claims
There is no hidden math, no admin control, and no off-chain logic. Everything is open and verifiable. You can check for yourself here: https://faith.gg
FAITH shows that Sui can support complex on-chain systems at low cost and high speed. It proves that developers can build full products on-chain without extra servers or heavy tools. For builders looking for what is next in crypto, FAITH shows that Sui can handle ideas that other chains cannot.
Do you have FAITH in Sui?
