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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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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

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

flabitrum

Flabitrum is not just another dApp — it’s a playground. We’re bringing back the raw fun of simple, addictive games and mixing it with the power of on-chain rewards. No confusing jargon, no boring dashboards — just instant fun, friendly competition, and provably fair outcomes secured by crypto rails. Whether you’re here to play, stake, or flex your streaks, Flabitrum gives you a reason to come back every day. Every tap, every choice, every move is on-chain — meaning your wins are yours to keep, trade, or show off.

Tech StackReact, Next, Web3, Solidity, Node, Ethers
Builder
HHarsh Shukla
Gaming

StableUPI

A payment solution that lets users pay via stablecoins directly from their crypto wallets, while merchants receive instant INR through UPI, bridging the gap between crypto and everyday payments.

Tech StackNext, Solidity, Web3, Ethers, Node, Express, REST APIs
Builder
Kkaushal desai
SocialFiOtherDeFi

dapps.co

Invest in communities like stocks (think reddit meets pump.fun)

Tech StackReact, Web3, Ethers, Node, Solidity, Python
Builder
MMohit Madan
SocialFiDAO

Lobstar

Good project

Tech StackReact, Ethers, Java, Solidity, Node
Builder
HHasn Khan
InfraDAORWA

Orbital

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

Tech StackSolidity, Rust, Next, Node
Builder
YYash Agrawal
InfraDeFi

Lobstar

Good project

Tech StackReact, Ethers, Java, Solidity, Node
Builder
MMamun Khan
InfraDAORWA

TempWallets

TempWallets are disposable temporary wallet technology. It allows Degens to connect to risky DApps or receive crypto anonymously. Users can generate temporary wallets deterministically from their Metamask signatures.

Tech StackEthers, React, Vue, Web3, Node, Next, Nestjs, TypeScript
Builder
RRahul Pandey
InfraDeFiOther

StreamPay

A Stylus-powered recurring payments protocol on Arbitrum One, enabling automated subscriptions and payouts with Gelato.

Tech StackRust, Web3, Typescript
Builder
VVipul Yadav
InfraDeFi

GameFi Runner

Game endless runner có tích hợp NFT skin.

Tech StackNext, Web3, Python, Move
Builder
MMINH SƠN ĐOÀN
SocialFiDeFiNFT

MusicNFT Hub

A platform for uploading, streaming music, and selling copyrights as NFTs.

Tech StackJava, Go
Builder
MMINH SƠN ĐOÀN
SocialFiDeFiNFT

Learn2Earn

Learn online, take quizzes to earn token rewards.

Tech StackVue, Web3, Ethers
Builder
MMINH SƠN ĐOÀN
SocialFiAIOther

FT Pet House

Ứng dụng nuôi thú cưng ảo dưới dạng NFT. Người chơi có thể feed, chơi và trade thú cưng trên marketplace.

Tech StackReact, Web3
Builder
MMINH SƠN ĐOÀN
SocialFiDeFiNFT
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