SQLProtocol

A free browser game for learning SQL. It includes a 15-chapter story campaign, timed interview drills, and 1v1 multiplayer matches. No install or signup is required.

Open sqlprotocol.com in your browser and start playing. There is no install and no signup, so you can go straight into the game from a new tab.

The game has three parts. The story campaign runs across 15 chapters, so it works as the main path if you are learning SQL or want a structured route through it. The timed interview drills put you under a clock, which suits practice before a technical interview. The 1v1 multiplayer matches put you against another player.

Your goal is to write SQL that answers what each section asks of you, working through the campaign chapters and returning to drills or matches when you want shorter sessions. The listing does not describe a scoring system beyond the timed format of the drills and the head-to-head format of the matches.

Because nothing is installed and no account is created, progress details are not described here. Treat each session as something you can start quickly and leave at any point.

You play in the browser and write SQL, so a keyboard is what you will use most, with a mouse or trackpad for moving between chapters, drills, and matches. The listing does not describe a dedicated touch or gamepad setup.