OSMSimtactics testing tool

Please read this

OSMSim does not use the Online Soccer Manager match engine. Results come from our own independent model, so they are estimates and may not match what OSM produces for the same line-up.

This is an independent, unofficial project with no connection to, endorsement by, or affiliation with Gamebasics B.V. or Online Soccer Manager. All trademarks belong to their owners.

The simulation runs entirely in your browser. No account is needed, and the teams you save stay on this device — they are never uploaded to a server.