ActionSims: Historical Baseball Simulation
ActionSims is a free baseball simulation for fans of the tabletop and computer baseball games many of us grew up with. Pick real teams from any season since 1871, fill out the lineup card and make the calls from the dugout, or hand the game to the CPU manager and watch it play out.
Free to play. Play a single game with no signup. Create a free account to save your progress and come back to a World Series or season replay later.
Game of the Day, November 5, 2026
Cincinnati Reds at
New York Giants
1940 season at Polo Grounds V . Pitchers bat.
- Single Game FREE FOREVER Pick any two teams, even from different seasons
- Game of the Day FREE FOREVER (Requires registration) One matchup everyone plays each day, with standings
- All-Star Game FREE FOREVER AL against NL at that year's real host park
- World Series FREE FOREVER (Requires registration) Replay a real World Series or build your own matchup
- Negro Leagues FREE FOREVER (Requires registration) Seasons from 1904 to 1948 at each team's home park of record
- Season Replay FREE until Jan 15, 2027 Manage a club through any season from 1871 to 2025
- Draft Season FREE until Jan 15, 2027 Draft real player seasons from any span of years and play a season with your picks
- Custom Season FREE until Jan 15, 2027 Build a league from any teams and years with your own schedule and playoffs
- Head to Head FREE until Jan 15, 2027 You manage one team while a friend manages the other
- Real Schedules and Lineups FREE until Jan 15, 2027 Season replays use the real schedule and can start each day's real lineups
Player stats come from the Lahman Baseball Database. Schedules, lineups and pickoff rates come from Retrosheet. The information used here was obtained free of charge from and is copyrighted by Retrosheet. Interested parties may contact Retrosheet at 20 Sunset Rd., Newark, DE 19711.
See it in action