Big League GM

Hire an Assistant GM to run the business, chase better jobs around the league, and prove you belong in the big chair.

Build your franchise. Shape your roster. Chase a championship. Big League GM puts you in control of a professional baseball organization, from the front office to the final pitch. Construct your roster, negotiate contracts, make trades, develop prospects, manage payroll, and guide your club through a living, evolving baseball world. Every decision matters: • Scout amateur and international talent • Draft, sign, and develop future stars • Negotiate trades, extensions, and free-agent contracts • Manage the active roster, depth chart, rotation, and bullpen • Balance payroll, ownership expectations, and long-term goals • Oversee your farm system and follow prospects through the minors • Manage games pitch by pitch or simulate ahead • Adapt to injuries, fatigue, matchups, and changing player performance • Compete through full seasons, playoffs, awards, career milestones, and Hall of Fame voting
The simulation accounts for individual pitch arsenals, hitter matchups, handedness, pitcher fatigue, defensive ability, ballpark effects, player development, aging, injuries, and clubhouse dynamics. Build for today or plan for the next decade. Whether you prefer hands-on game management or long-term franchise strategy, every season tells a different story. Can you build baseball’s next dynasty?