A browser-based dungeon crawler where you escape by writing SQL;
each room is a puzzle, and your only weapon is a SELECT statement.
Trapped in a dimly lit dungeon, you progress room by room by querying a SQLite world.
Explore tables freely with Run query, then Attempt
when you think your result opens the door. Wrong answers cost HP and unlock hints;
run out of health and you respawn on the same floor. Eight rooms across four floors
teach SQL step by step; from WHERE and JOIN to
subqueries and window functions; until you defeat The Slammer and escape.
…
Objective
Hints
🌞 You Escaped the Catacombs of Eye!
You bent the dungeon's database to your will and walked into daylight.
From SELECT to window functions — well played, query-mage.
🗝️ The Catacombs of Eye
A browser-based SQL dungeon crawler. Each room is a puzzle — your only weapon is a
SELECT statement.
How to play
Browse the schema on the right and run free queries with Run query.
When your result solves the room objective, click Attempt.
Wrong answers cost HP and reveal hints. Run out of health and you respawn on the same floor.
Eight rooms teach SQL from WHERE and JOIN to window functions.
Tips
Click a table name in the schema panel to insert it into the editor.
Use Ctrl+Enter (or Cmd+Enter) to run a query.
Only read-only SELECT queries are allowed — no dropping tables!