Research & Track Record
ZKPuzzle is the second-largest zero-knowledge application by volume, after Worldcoin. We built the first ZK privacy mobile app, the first ZK provable multiparty gaming, and the first ZK arcade combining privacy and verifiability — and the team behind it (formerly Puzzle, formerly Nucleo) has been in the ZK trenches since 2022.
This page is the primary reference for what we’ve shipped, who we’ve worked with, and where it’s all documented publicly.
Firsts
Each claim below has a corresponding conference talk, launch post, or partner announcement in public record. The links are further down.
Q4 2022 – Q1 2023
Private multisig and B2B toolkit. Shipped during the Nucleo era after the $4M seed round led by Bain Capital Crypto and 6th Man Ventures. First customers included working partners like OFAC, Sotheby's, and Wintermute on regulatory-grade privacy.
Q4 2023
The Puzzle Wallet on iOS with Aleo account abstraction — the first mobile app to put zero-knowledge privacy primitives in a real user's hands without requiring a desktop or a browser extension. Covered at ZK Summit 10 and the Fenbushi research workshop at Devconnect.
Q4 2023 – Q1 2024
Multiplayer games where the rules, the randomness, and the outcomes are all verifiable with a zero-knowledge proof — not trusted to a server. Launched at Devconnect with ZK Hack and earned Puzzle the win at Aleo's SnarkTank competition in Q4 2023.
Q1 2024 (announced) – Q3 2024 (mainnet)
Announced at ETH Denver 2024 as Puzzle Arcade. Shipped as part of the Aleo mainnet launch in Q3 2024. At the same moment: the first time quests, points, and Shopify shop integrations ran on a production ZK network. First shops: Krewe, Cajun Power, Motier.
Q3 2024 – ongoing
Following the Aleo mainnet launch, Puzzle Arcade became the leading ZK application by user volume — second only to Worldcoin. Crossed 600,000 users in Q2 2025. The Coinbase × Aleo × Puzzle partnership in Q1 2025 cemented the category position.
Conference Talks
Six public talks across industry and research venues between 2023 and 2024 — covering the Nucleo architecture, the first ZK mobile app, multiparty gaming, and the Puzzle Arcade launch.
ETH Denver 2024
Introduced the Puzzle Arcade — the first ZK arcade combining privacy and verifiability. Launched quests, points, and the first shop integrations (Krewe, Cajun Power, Motier) running on ZK rails.
Watch →ZK Summit 10
Technical talk on the architecture of the first ZK privacy mobile app, the multiparty gaming engine, and the developer toolkit built on top of Aleo.
Watch →Devconnect 2023
Research talk on the state of ZK for consumer applications: private multisigs, private/public cross-chain, audit views, and the practical limits of user education in privacy.
Watch →ETH CC 2023
Panel on autonomous, privacy-preserving systems. Covered how Puzzle’s approach to ZK multiparty applications differed from TEE networks and mixer layers being built at the time.
Watch →404DAO Accelerator 2023
Demo day presentation covering the full B2B and dev tooling suite shipped during the accelerator: the first ZK privacy mobile app and the move from Aztec to Aleo + Aztec v3.
Watch →ETH Denver 2023
Canonical origin talk. Covered Nucleo’s hackathon founding, the ConstitutionDAO2 origin story, partnerships with Aleo, Aztec and Espresso, and the technical work behind private multisigs, cross-chain private/public transactions, audit views, and audit keys.
Watch →Partnerships
Built on Aleo from 2022. Became the largest consumer-facing application on the Aleo network, contributed core code to mainnet, and operated as Aleo's official faucet provider for developers. Puzzle Wallet shipped alongside Aleo's mainnet launch in Q4 2024.
The Coinbase × Aleo × Puzzle partnership went live in Q1 2025, integrating Puzzle into Coinbase's quests surface. Coinbase has since sunset its quests product; the integration video remains as the primary public record.
Partnered with Aztec during the Nucleo era to build the first ZK privacy multiparty application. By the time Aztec announced the sunset of Aztec Connect (its L2 product) on March 13, 2023, Nucleo had over $1M in TVL across 20+ on-chain orgs running on the stack — including MakerDAO and Consensys as private treasury customers. Because the team had been actively de-risking platform exposure since Q4 2022 (investigating Aleo, Espresso, Anoma/Namada, Penumbra, and Nocturne), the transition to Aleo was a planned acceleration, not a scramble. Continued collaboration with Aztec v3 during the 404DAO accelerator in Q3 2023.
Timeline
Every major product shipment, partnership, and research publication — in chronological order. Citations link out to primary sources.
Nucleo announces $4M seed round led by Bain Capital Crypto and 6th Man Ventures.
ConstitutionDAO2 launch. Nucleo provides the privacy infrastructure for the revived bid to buy a copy of the US Constitution. 15% of donations flow through the private rails.
ETH Denver talk lays out the full Nucleo architecture: private multisigs, private/public cross-chain, audit views and audit keys, and the first assessment of what holds ZK adoption back at consumer scale.
Spring dev program. 4 interns build 4 production-quality games on the Nucleo/Aleo stack — first proof points for the dev-tooling thesis.
Aztec announces the sunset of Aztec Connect (its L2 product). Nucleo had been investigating Aleo, Espresso, Anoma/Namada, Penumbra, and Nocturne since Q4 2022 — and prototyping ZK multiparty games as a distribution workaround for on-chain org customers being shadow-banned on social. The transition was already in motion.
404DAO Accelerator with Aleo and Aztec. 200 devs signed up; 50+ made it through bootcamp; 8 teams formed; 4 shipped production-quality apps on Aleo using the Puzzle stack — including arcane.finance, which is still live today.
Rebrand from Nucleo to Puzzle. First ZK provable multiparty gaming. Puzzle wins Aleo's SnarkTank at Devconnect with Where's Alex (subsequently forked 70+ times in the open-source ZK gaming community).
Announced Puzzle zkGames & Giveaways on Aleo. Over 100 games subsequently built on the Puzzle stack via the ZK Hackathon (notable cohort projects: Super Leo League, ZK Casino). 20+ teams using the Puzzle stack by end of Q1 2024.
Announced Puzzle Wallet on iOS with Aleo account abstraction — the first ZK privacy mobile app.
Announced Collaborative Puzzle Points — the first step toward the rewards economy that became the Puzzle Arcade product.
Direct contributions to the Aleo mainnet codebase. Puzzle Arcade beta opens.
Aleo mainnet launch. Puzzle Wallet, Puzzle Arcade, and the full consumer stack go live with it. Puzzle becomes an Aleo validator securing 20M ALEO at launch — approximately $120M in headline TVL — and the leading consumer-facing ZK application by user volume. The bridge from "consumer app" to Puzzle Capital starts here.
Published technical post "Strategies for Private State Management, or How to Find Your Stuff on a Private Blockchain like Aleo" — reference for the private-state design pattern used across the Arcade.
Launched Arcade quests — the structured rewards loop that turned the Arcade from a games surface into a daily-use product.
Launched Puzzle Pro subscription and shipped Squash and Mystery City — two new Arcade games — to round out the catalog.
Coinbase × Aleo × Puzzle partnership goes live. Puzzle becomes part of the Coinbase quests surface.
Puzzle Arcade 10× expansion: new shop tab with 10× the stores and 10× the daily giveaways. Crossed 600,000 users.
Shipped referral program, content creator program, and gift card uploader program.
Stablecoin integration. Puzzle Capital expands to 40M ALEO under management (up from the 20–25M ALEO range earlier in the year).
Shipped daily puzzle games, messaging, and group chats — the social layer that turned the rewards product into a consumer social app.
ZKPuzzle 3.0 GTM. Rebrand to ZKPuzzle on zkpuzzle.shop.
Press
The Nov 2022 $4M seed round and the Dec 2022 ConstitutionDAO2 launch drew coverage across crypto and fintech trade press. Selected citations below.
FAQ
Press & partnership enquiries: hello@puzzle.online