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Open House Archive

Welcome to the Open House Archive - your central repository for accessing all previous Open House buildathons and projects.

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Project Highlight

Project Highlight

EduBricks

EduBricks is a platform enabling fractional ownership of tokenized real estate, making investments more accessible

Champion

7th Place

Arbitrum X EDU Chain Mini-Hack

Pencil Finance

Bringing $3 Trillion in Student Loans On-Chain

Champion

1st Place

Arbitrum X EDU Chain Mini-Hack

Stylish Course to Stylus Smart Contract Development

A comprehensive course on deploying and interacting with Stylus smart contracts on Arbitrum and EDU Chain, featuring a full-fledged Stylus IDE for seamless deployment and interaction.

Champion

First Prize

Arbitrum X EDU Chain Mini-Hack

VineFinance

Vine Finance is a decentralized, modular revenue strategy protocol.

Champion

Third Prize

Arbitrum X EDU Chain Mini-Hack

Orbital

A next-gen AMM that supports 2, 3, or even 10,000 stablecoins in a single pool, scaling concentrated liquidity into higher dimensions.

+1
Champion

Second prize

Arbitrum Open House India: Online Buildathon

zkArb SDK

zkArb SDK is a developer toolkit that makes building zero-knowledge apps on Arbitrum simple and fast. It provides plug-and-play Circom circuit compilation, proof generation, and ready-to-deploy verifier contracts, so developers can focus on dApps instead of cryptography.

Champion

Honorable Surprise Mention

Arbitrum Open House India: Online Buildathon

perpX

perpX is a decentralized leveraged trading protocol that reimagines perpetual futures by introducing forced expiry and outcome-based settlement.

Tech StackReact, Next, Web3, Ethers, Rust, Arbitrum, Stylus, Node
Builder
AAman Jha
DeFi

SlemanFi

A comprehensive DeFi lending protocol built using Solidity (Foundry) and Arbitrum Stylus (Rust)

Tech StackStylus, Next, Web3, Solidity, React, Foundry, Chainlink, Ponder
Builder
AArif Novrian Pratama
DeFi

Seturan FI

A permissionless cross-chain lending protocol powered by LayerZero and built for composability on Arbitrum

Tech StackSolidity, Web3, Next, Ponder, LayerZero, Cross-chain, Arbitrum, Foundry
Builder
Rruina ventura
DeFi

ArbiStream

Real-time, per-second money streaming protocol built on Arbitrum Network.

Tech StackReact, Solidity, Web3, Ethers
Builder
OODION oseiwe
DeFi

stylus-ide

Build, Test, AI Integrated and Deploy Smarter with "npm i create-stylus-ide". Create New Files or Load from GitHub or Interact with On-Chain Contracts.

Tech StackNext, Web3, Rust, Node
Builder
AAaditya Srivastava
Infra

Bountyx

The Trustless Bounty Marketplace on Arbitrum.

Tech StackWeb3, typescript, Next
Builder
MMaaz .
DeFiSocialFiOther

Commit or Donate

Stake ETH/MockUSDC on a promise. Confirm before deadline. A human validator decides success; otherwise the stake is donated.

Tech StackReact, Next, Solidity
Builder
MMuhammad Ihsan
SocialFi

Hash Mahjong

Hash Mahjong transmutes a arbitrum mainnet transfer hash into a deterministic, publicly auditable Mahjong hand with 18 win archetypes, delivering a frictionless GameFi that catalyzes authentic users.

Tech StackWeb3, Ethers
Builder
SShuo REN
SocialFi

Verdict

Verdict: Capital-efficient prediction markets for real-world asset strategies. Deploy 100% of your capital

Tech StackReact, Solidity, Ethers, Next, Node
Builder
PPreyanshu Mishra
InfraAI

APT-Casino Arbitrum

A Fully On-Chain, Provably-Fair Casino Powered by Polygon x Pyth Entropy 6 blocks lightning VRF

Tech StackNext, React, Solidity, Supabase, Livepeer, Chainlink VRF, Cursor, Vercel
Builder
AAmaan Sayyad
SocialFiGamingNFT

OrbitFinanceV2

A Hybrid Self-Repaying Lending Protocol Combining DeFi + Real-World Assets

Tech StackReact, Next, Web3, Node, Solidity
Builder
DDIPTI PATHAK
DeFiRWANFT

SlemanFi

A comprehensive DeFi lending protocol built using Solidity (Foundry) and Arbitrum Stylus (Rust)

Tech StackStylus, Next, Web3, Solidity, React, Foundry, Chainlink, Ponder
Builder
HHafsidee
DeFi
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Builder Highlight

Most Hackathon Won

Most Project Built

Builder Highlight

Most Buildathon Won
M

Manobendra Mandal

Kolkata, India
Champion
3
No.1
V

Vivek Sahu

India
Champion
2
No.2
s

simp1e

china
Champion
2
No.3
Most Project Built
M

Manjeet Sharma

india
Champion
16
No.1
R

Rick

California
Champion
16
No.2
D

DHRUV PANCHOLI

jaipur
Champion
15
No.3