Data challenges with a story to tell
Keep your data skills sharp through hands-on challenges set in unusual places — medieval breweries, MMO disasters, surf forecasting, and more. SQL, modeling, pipelines, architecture. Every module conceals a secret message for you to decode.
or sign up for launch updates
We'll email you when we launch. No spam. Privacy Policy.
Vol. 1 — Follow the Money
Someone at Meridian Corp is moving money they shouldn't be. Phantom transactions in the ledger, tampered archives, suspicious wire transfers, inflated prices — the evidence is buried in the numbers. You're the detective. Work the cases, follow the money, and piece together a conspiracy that someone went to great lengths to hide.
The Flat Table Disaster
Questborne, a small game studio, shipped their online multiplayer game "Realm of Echoes" with one giant table for everything — players, items, guilds, gold, all mashed together. Now the in-game economy is melting down: duplicate items, phantom gold, guild leaders who change retroactively. You're the contractor called in to untangle it.
Baseball Sabermetrics
Sabermetrics is the use of statistical analysis to evaluate baseball players beyond traditional scouting. Small-market teams can't outspend the giants — but they can outsmart them. The Ridgeline Aces haven't made the playoffs in a decade, and new GM Sarah Chen is betting on analytics to turn things around. As the team's first data analyst, you'll crunch batting stats, pitching metrics, and player contracts to find hidden value and build a winning roster on a budget.
Analytics Architecture
Pelican Point, Western Australia — a legendary reef break where three-meter swells peel over shallow limestone. The World Surf League wants to run a competition here, and they need a forecasting platform. You're spending the summer turning thirty years of handwritten surf observations into a production analytics system — from raw landing zone to real-time dashboards to wave-quality predictions.
More modules in the works — analytics, forensics, AI, system design, and beyond.
Stay sharp in the age of AI.
Agents will get you most of the way there, fast — and we all use them. But the fundamental skills and knowledge — writing the query yourself, designing the pipeline, reasoning through what the data is actually telling you — only stay sharp if you keep practicing them. Quantary is that practice, dressed up in stories that don't feel like drills: a monastery whose ale recipe was quietly swapped, an art heist hiding in a museum's catalog, real SQL, Python, and pipeline work. Whether you're prepping for an interview or just refusing to get rusty, an hour here goes quickly.
Or get notified when more modules launch.
We'll email you when we launch. No spam. Privacy Policy.