Logo

Open House Archive

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

projects-banner

All Projects

By ProjectBy Buildathon
Learn
  • Explore Course
Build
  • Explore Buildathon
  • Project Archive
Hack
Hack Coming Soon
  • Explore IRL Hackhouse
  • How to Qualify
  • Past Events

Builder Highlight

Most Hackathon Won

Most Project Built

Builder Highlight

Most Buildathon Won
E

Edy Cu

Jakarta
Champion
1
No.1
c

chubbyzroxas

Champion
1
No.2
Y

Yayan Fauzi

Champion
1
No.3
Most Project Built
z

zorzalcripto

regencia
Champion
61
No.1
A

Amaan Sayyad

Navi Mumbai, India
Champion
34
No.2
A

Aaditya Rawat

Champion
29
No.3

Project Highlight

Project Highlight

EduBricks

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

Champion

x

Arbitrum X EDU Chain Mini-Hack

Pencil Finance

Bringing $3 Trillion in Student Loans On-Chain

Champion

x

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

x

Arbitrum X EDU Chain Mini-Hack

VineFinance

Vine Finance is a decentralized, modular revenue strategy protocol.

Champion

x

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

x

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

x

Arbitrum Open House India: Online Buildathon

Mirror-onchain

A tamper-proof, on-chain track record and a hard-capped copy vault for trading agents on Robinhood Chain Stock Tokens. Copy an agent only inside a daily cap you set.

Tech StackSolidity, React, Next, Node, Foundry, Wagmi, Viem, Chainlink
Builder
TTHE PHANTOM CALL
DeFiAIRWAInfra

Heritage B

Verified history for collector cars. An iPhone app reads the car over OBD, AI explains its health, and each report's fingerprint is anchored on Robinhood Chain and peaq, so a buyer can check it was never edited.

Tech StackSolidity, Node, Web3
Builder
DDmytro Nikolaienko
RWAAI

Slate

Prices for the 159 Robinhood stock tokens Chainlink doesn't cover. Applies the split multiplier in force when each price was observed, and refuses rather than guesses. Live on mainnet.

Tech StackSolidity, Next, React, Node, Web3, Rust, Foundry, Viem
Builder
JJagadeesh B
DeFiInfraRWA

Sirius

Confidential data lending: companies rent their private datasets to AI teams for training, without the data ever being exposed. https://sirius-data.tech

Tech StackNext, React, Web3, Solidity, TypeScript
Builder
AAli BEN YEZZA
AIDeFi

gUSD - Capital Markets for GPU Compute

Onchain market for GPU compute prices. Trade spot and perpetual exposure to GPUs like H100, H200, L40S, and RTX 4090 Coming soon -> Rentals and Credits backed by GPUs Live on Robinhood Chain

Tech StackNext, Web3, Node, Go, Ethers, Solidity
Builder
WWei Bo
DeFiRWAInfra

MEMEGalaxy

MEMEGalaxy is a browser based multiplayer game that introduces players to onchain rewards through familiar gameplay, seamless smart wallets, and partner funded campaigns. An original cosmic multiplayer arena where human players and owner created AI agents grow, split, hunt and compete. It combines accessible browser gameplay with token based rewards, collectible skins and partner tasks. The project has progressed from the Big Circle concept into a public Robinhood Chain testnet beta visit https://memegalaxy.fun on Robinhood testnet

Tech StackReact, Solidity, OpenZeppelin, PostgreSQL, Node, Phaser, Express
Builder
Uusamah abduljalil
RWAGamingAI

Yorse

First fully decentralized freelance platform on Arbitrum.

Tech StackNext, React, Web3, Node, Solidity, ZeroDev, Alchemy
Builder
OOscar Don-Egbuna
DeFi

FairFlow

FairFlow is an economic operating layer for AI-native projects, helping humans and agents define contribution, recognize work, settle services, and build project-level economies on Arbitrum.

Tech StackSolidity, Web3, Ethers, Node, TypeScript, Hardhat
Builder
AAlex Li
AIInfra

TRON Kingdom

A 4-player fog-of-war strategy game in the browser: everyone gives secret orders at the same time. Ranked matches are played for USDG stakes on Robinhood Chain mainnet, and the server can never touch players' money.

Tech StackWeb3, Ethers, Node, Solidity
Builder
TTron
GamingNFT

Pactra

AI-assisted onchain escrow for freelancers and clients, powered by milestone-based USDC payments on Arbitrum.

Tech StackNext, Web3, Solidity, Arbitrum, Foundry, wagmi, viem, OpenAI API
Builder
VVincencio Gabriel Frederic Sanjaya (Vincen)
DeFiAI

HighSeaz

HighSeaz is a multiplayer open-ocean naval game — buy a ship with real testnet USDG, sail, sink rivals, and auction their loot. Ships only; the sea is the whole world. Live on Robinhood Testnet Chain.

Tech StackNext, Web3, React, Node, Ethers, Solidity
Builder
BBigFred007
GamingNFT

Railguard

Open-source financial execution firewall for AI agents.

Tech StackReact, Next, Web3, Solidity, Ethers, Node, Go, Rust
Builder
PPrasanth Kuna
DeFiInfraAI
  • Previous
  • 1
  • More pages
  • 17
  • 18
  • 19
  • More pages
  • 127
  • Next