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A Baseball GM Simulator You Do Not Install

True Baseball Sim: GM is a baseball GM simulator and baseball management game that runs entirely in the browser. You take a front office. The engine plays the games. You live with the roster you built.

What You Do

Write the charter. Name the league and paint the clubs. Take a job. Set the lineup, work the farm, trade, draft, and advance the calendar. Every pitch is simulated. Box scores are real.

What You Do Not Do

You do not download a client. You do not make an account to start. You do not buy packs. You do not pay again next season. Keep a JSON file on your computer so a cleared browser does not take the club.

Price

Seven days of the full desk, then $19.99 once. The license opens two browsers. A third copy does not unlock.

Write The Charter — Play In The Browser

OOTP Alternative · Baseball GM Simulator · Baseball Management Game · Statistical Validation