About Kryptyr

Kryptyr is a free browser version of Stratego for one player against the computer. Open Stratego Online, choose Casual or Standard, and start with the default formation or rearrange your army. You can play with a mouse, a touchscreen or a keyboard. There is no app to install or account to create.

Why we built Kryptyr

We wanted a way to play a match on the device already in front of you. The opening formation lets you get straight to your first move, and you can change it before the match if you want to try a different defense. After a clash, the battle report identifies both pieces and says what happened on the square. If you are learning the game or need a reminder, the Stratego rules explain the ranks, special pieces and ways a match can end.

An independent fan site

Kryptyr is an independently made fan site with no affiliation with the owners of the Stratego name or trademarks. The board interface and computer opponent were built for this browser edition. The Stratego name and associated marks belong to their respective owners.

How to contact us

Use the contact page to report a game problem or suggest a correction. For a bug, include your browser and device, the last action you took and any message the game displayed. For a rules correction, tell us which piece or move was involved and what you expected to happen.