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Learn to investigate

Two short tracks, in whatever order you like

Initiation

5 lessons

Five short lessons to learn how to read a case: blocks and hops, markers, clusters, signing order, neighbors. Then, on to the easy cases. Brand new? The 2-minute guided tutorial →

VictimTreasurer

Reading the Trail

A small club's funds are gone. The Treasurer vanished before saying where.

Lesson 14×4
VictimMultisig Keeper

Markers

One night, the shared vault leaks into a mixer. Its Keeper vanishes the next day.

Lesson 25×5
VictimAuditor

Clusters

A token loses everything in an hour. The Auditor was following the money service by service.

Lesson 35×5
VictimArchivist

Signing Order

A transaction signed twice drains a project. The Archivist vanishes with her notes.

Lesson 46×6
VictimInvestigator

The Neighborhood

Loot split, scrambled, passed from hand to hand. The Investigator was tracking every step.

Lesson 56×6

Blockchain discovery

5 notions

Five short cases to understand the crypto world: the wallet and the seed phrase, fees (gas), confirmations, the smart contract, the stablecoin. Each case explains its notion before and after the game.

VictimNewcomer

The Emptied Wallet

Her first tokens, gone overnight. Nobody broke in.

Notion 15×5
VictimHasty Payer

Fees Too Low

She tried to save on fees. Her transaction is still waiting.

Notion 25×5
VictimShopkeeper

The Missing Confirmation

The payment was there, the computer shipped. An hour later, the payment no longer existed.

Notion 35×5
VictimAuditor

The Broken Vending Machine

Ask for a refund twice, get paid twice. The reserve is empty.

Notion 45×5
VictimTraveler

The Digital Dollar

He thought he was buying digital dollars. It was a worthless copy.

Notion 55×5