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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

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
z

zorzalcripto

regencia
Champion
51
No.1
z

zcy22606

chengdu
Champion
26
No.2
D

David Barasa

Kenya
Champion
19
No.3

Nexus

Nexus is an intent-based DeFi automation platform on Flow EVM that lets users define what they want to do such as token swaps and automatically executes those actions on-chain at the right time.

Tech StackSolidity, Web3, Next, Ethers
Builder
AArijit Sarkar
DeFi

Nexus

Nexus is an intent-based DeFi automation platform on Flow EVM that lets users define what they want to do such as token swaps and automatically executes those actions on-chain at the right time.

Tech StackSolidity, Web3, Next, Ethers
Builder
AArijit Sarkar
DeFi

Arbi-AI

Arbi-AI is a smart wallet companion on Arbitrum that gives users activity insights, risk alerts, guided onboarding, and transaction previews to help them interact with DeFi safely and confidently.

Tech StackSolidity, Ethers, React
Builder
BBarsil Ochola
OtherAI

Focus Flow ADHD Game

An Ethereum-based Schulte Grid game built with Next.js, RainbowKit, and Hardhat. Designed for users with ADHD, it gamifies cognitive training by recording every session on-chain.

Tech StackReact, Web3, Next, Hardhat
Builder
余余苍南
Gaming

Jackpet

Jackpet is a decentralized, luck-powered pet game on Arbitrum, where players stake 0.01 ETH to roll adorable pets, compete for jackpots, and share rewards from an ever-growing on-chain prize pool

Tech StackNext, Web3, Solidity, Ethers
Builder
HHarold K
DeFiGaming

ArbitPy

The first Python-to-blockchain compiler. Write familiar Python, compile to Solidity or Rust, deploy smart contracts instantly

Tech StackReact, Web3, Ethers, Python, Rust, Solidity, Node, Core
Builder
RROHAN KUMAR
InfraDeFiAI

RayStylus

The First Real-Time On-Chain Ray Tracing Engine with Arbitrum Stylus

Tech StackNext, Web3, Rust
Builder
PPramadani Firzatullah
Other

RayStylus

On‑Chain Ray Tracing & Neural Rendering with Arbitrum Stylus

Tech StackNext, Web3, Rust
Builder
PPramadani Firzatullah
OtherAI

celar

stablecoin api for developers by developers

Tech StackReact, Solidity, Node, Web3
Builder
Mmememan
InfraDeFi

AfterLife

AfterLife is a DeFI digital legacy system preventing crypto loss via inactivity.Users keep control while active;if inactivity is proven,guardians trigger secure asset distribution among beneficiaries

Tech StackNext, React, Web3, Solidity
Builder
MMrinmoy Das
DeFi

StylusForge

A complete Arbitrum Stylus ecosystem: browser IDE for zero-setup development, interactive tutorials with NFT badges and Onchain voting marketplace where developers showcase projects to attract funding

Tech StackReact, Next, Node, Web3, Ethers, Rust, Solidity, Python
Builder
Kkamwanga Rahiim
InfraDeFiAI

Gamechain

A decentralized application (dApp) built to bring innovation into card games. It provides a fun, interactive, and rewarding way for users to buy, battle monster-themed cards, and win or lose monsters

Tech StackReact, Web3, Solidity, Ethers
Builder
JJohn Obansa
GamingNFT
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