Level up your hero with real SQL.
A browser world on top of SQL Arena. Solve tasks and your hero grows, the town comes alive and new lands open up. Your query is the strike.
The world is being built right now. Whitelist members get in first — in small waves, so we can keep listening to feedback.
The world map is the curriculum
From your first SELECT to real interview tasks. New lands open as your strength grows — and strength only grows from solved tasks.
1Green Meadows2Whispering Forest3Azure Port4Forgotten Lands5Northern Kingdom6The Citadel1. Green Meadows
SELECT · WHERE · ORDER BY
2. Whispering Forest
GROUP BY · HAVING
3. Azure Port
JOIN · multiple tables
4. Forgotten Lands
subqueries · CTE
5. Northern Kingdom
window functions
6. The Citadel
interview tasks
Quests instead of “write a LEFT JOIN”
Townsfolk come to you with problems, and the answers live in their databases. Every quest line is an investigation where each step needs a slightly stronger query.
The Missing Shipment
Carts stopped reaching the northern sawmill. Find out which orders went missing.
The Innkeeper's Ledger
The innkeeper is sure he's being cheated. Reconcile the daily takings and find the hole.
Who Opened the Gate
Someone slipped into the Citadel at night. Rebuild the chain of events from the watch log.
Every move in the game is a solved task
- 1You solve a taskYour query passes the same check as in the trainer.
- 2The quest moves onA chapter closes and the townsperson tells you what happened next.
- 3Your hero grows strongerStrength grows only from solved tasks.
- 4A new land opensThe town and the map change, and other players see it.
Your Tavern hero steps into the world
Your hero from the Tavern becomes your character. Others will see it in the square, at the arena and on the leaderboard — along with your course titles.
- Walk around town, visit the Academy and the Arena
- Click another player to see their rank and strength
- Finish a course to earn a title everyone can see
Take your place at the gates
Leave your email — we'll write once, when the first wave opens. Your solved tasks are already building your strength.