What we've built

Rizz

Technical implementation partner to LAB75 · prototype

If a 16-year-old proves their age once, a chat app shouldn't end up storing a copy of their passport. Most apps for young people either skip proper age checks, keep the documents, or moderate by reading every message. None of these sits well with European platform and privacy law.

Rizz has servers, channels, groups and direct messages. It is designed to prove age with a zero-knowledge proof, using the EU Digital Identity Wallet in countries where it is available, and it stores no date of birth. Members aged 13 to 15 join with a linked parent, who approves their contacts and can see which spaces they are in, but can't read their messages.

Moderation starts from reports: safety checks run on the phone, and people only review what has been reported. LAB75, the Frankfurt studio the practice grew out of, now works as a venture studio and runs Rizz; we are its technical implementation partner. Rizz reuses the age-proof design from game3.id. The first version is built, and a public beta in Germany, Austria and the Netherlands is next.

Identity · Compliance infrastructure · Security

Denario

CTO-in-residence · completed · 2024–2026

We were CTO-in-residence from 2024 to 2026 and architected the technical stack: token issuance, bridging between chains via LayerZero, price feeds and proof of reserve via DIA, and the work to add more chains.

Each DSC or DGC token can be redeemed for 1 oz of physical silver or gold held in Swiss high-security vaults. We also built the compliance framework and stable rails, laid the groundwork for card issuance, and delivered a RAG system for executives and service staff.

Particula rated the issuance BBB+ for technical soundness, legal architecture and regulated structure.

• Site
• Particula rating
• DSC on Polygonscan
• DGC on Polygonscan
• DIA oracle integration
• Light paper: The Convergence Triangle →

Compliance infrastructure · Finance · On-chain systems

Donations on stable rails

Confidential · completed · 2025–2026

Americans gave $617 billion to charity in 2025, mostly over payment rails built for other purposes. Card fees take a cut of each donation, cross-border grants take days to arrive, and few donors, retail or institutional, can see where their money ended up.

For a confidential client, we built the whole application stack in about four months: a mobile wallet with stablecoin balances and social login, with no seed phrase to manage; an identity layer based on decentralised identifiers and verifiable credentials; and smart contracts with an SDK. Cards are issued through a partner, behind an interface that lets us swap providers, so a card payment can round up into a donation that settles on the same rail.

The same rail works for a ten-dollar round-up and for a grant from a foundation or donor-advised fund. It supports programmable splits and fast cross-border settlement, and keeps an audit trail that reports impact without revealing who the donor is. Institutions are starting to use regulated stablecoins: stablecoin-linked card spending on Visa grew 319% to $5.2 billion in 2025, and the GENIUS Act and MiCA set out how issuers get licensed.

Client and further specifics remain confidential.

• Light paper: The Convergence Triangle →
• Light paper: Infrastructure for Verifiable Impact at Scale →

Finance · Identity · Compliance infrastructure

GameDAO

Architected, built and shipped · sunset · 2019–2025

Game studios, esports teams and guilds raise money and make decisions together, usually with spreadsheets and a lot of trust. GameDAO moved that on-chain. A group sets up an organisation, runs fundraising campaigns into a shared treasury, votes on proposals, and builds up a reputation record for its members.

We architected, built and shipped it as Substrate modules running natively on ZERO Network, built with regulators in mind. Like the chain, it had an automated security audit by SRLabs during the Substrate Builders Program. GameDAO started in 2019 and was deployed in 2022; it no longer runs in that form.

• Site
• Documentation

On-chain systems · Gaming · Security

game3.id

Founder and operator · prototype

Games reach more than three billion players, but there is no shared identity layer between them. Every new age or identity check leaves another company holding a copy of someone's passport, and a player's account belongs to the studio that issued it.

game3.id gives each player a self-sovereign identifier and zero-knowledge proofs that a game can check without learning who the player is. Age is the first proof. The protocol stores no personal data, and it is built for GDPR and the EU Digital Identity Wallet.

Players can also give an agent limited authority to act for them, with a scope and an expiry. A game or a payment service can then check who authorised an action and what the limit was.

The contracts, the age-proof circuit, agent delegation and name claiming run on Amoy, the Polygon testnet. The web and Unity SDKs and Sign in with game3 are in early access. spray.cash and Rizz are both in development with game3.id.

• Site
• Light paper: Self-Sovereign Identity for Interactive Entertainment →

Identity · Gaming · Agentic systems

spray.cash

Founder · prototype

A young person in Europe might have a pocket-money card, a payment app they can only use from 18, vouchers inside games, and a festival wristband whose balance expires on Monday. spray.cash brings that money into one wallet that belongs to them and works within limits they choose.

Users hold their own keys, and we hold none. Balances are regulated euro and franc e-money tokens, so nobody has to deal with chains or gas, and anything that needs a licence goes through a licensed partner.

Every payment, whether the user makes it or an agent makes it for them, runs under a mandate with an amount, a counterparty and an expiry. A mandate with no limit can't spend anything. Age and parental consent come in as game3.id proofs rather than copies of documents, and under-18s get no credit, overdraft or buy-now-pay-later.

First comes a closed pilot with adults in Germany and Switzerland, recruited from gaming and creator communities.

• Site

Finance · Identity · Agentic systems · Compliance infrastructure

Vision

Founder · prototype

Stop re-rolling for a result you can't get back. Vision generates assets, levels and worlds as versioned artefacts — same seed, same output, every time — so you build on what worked instead of starting over.

Full fidelity, fully composable, no slop. It runs as a deterministic graph, wiring your model of choice into your existing toolchain — Blender and Unity to start. Early access is opening in small batches.

Gaming · Product design

wasd.fund

Founder · research

An investment protocol where agents read proposals and vote on allocations. It is a research project, and Zero Reality does not operate it as a fund.

• Site

Finance · Agentic systems

ktrl.one

Founder · prototype

A game controller for players and their companions. We design both the hardware and the interface, the same product-design work the practice began with as research in 1999.

• Site

Product design · Gaming

ZERO Network

Built and maintained · sunset · 2022–2024

We started ZERO Network in 2017 as a chain for games and their economies, covering assets, payments, identity and governance, built with regulators in mind. Built on the Polkadot stack, it ran as its own network for games, with a public testnet from 2020, before joining Kusama as a parachain. Through the Substrate Builders Program, backed by Parity and the Web3 Foundation, it had an automated security audit by SRLabs.

ZERO Network won two Kusama parachain auctions with its own funds and held para ID 2236 from December 2022 until the lease ended in October 2024. GameDAO and Battlepass ran on it. The network is no longer operated, but the code is still public.

• Source
• Parachain record
• Light paper: Zero: Agentic World Models →

Finance · Compliance infrastructure · On-chain systems

Battlepass

Built and operated · sunset · 2023–2025

Esports organisations and creators have large audiences but few ways to reward their most loyal fans. Battlepass gave them a white-label season: fans completed quests on Discord and social media, earned points, levelled up and claimed rewards the organisation picked, such as digital items, merchandise or event access.

Fans paid for a team's battlepass by card, with Stripe running the subscriptions. We sponsored ÆX-1 and ran the go-to-market campaign with WAVE Esports, both successful teams.

On-chain, each season belonged to a GameDAO organisation. Joining minted a membership token, each level had a points threshold, and rewards could be claimed as NFTs, while off-chain services tracked the quests. Battlepass was our own product, built on GameDAO's software and ZERO Network. It is no longer operated.

Gaming · On-chain systems