Draft all-time rosters from any era, simulate full seasons, and take on daily challenges across NFL, MLB, and NBA.
Franchise Lab is a free browser-based sports gaming platform featuring NBA, MLB, and NFL draft simulators, sports trivia, and statistical challenges. Every game is built on real historical player data and lets you compete on a global leaderboard. No download, no account required — just open and play.
Each draft game gives you a roster to fill by spinning through random team and decade combinations. For each spin you pick the best available player for your open position. Once your roster is complete, the simulation engine calculates your team strength using career statistics, roster balance, and star power — then simulates a full season with win probabilities applied to each game individually.
Yes. All player data is sourced from historical sports records spanning 1950 to 2025. Stats are organized by decade and team, and era adjustments normalize performance across different periods of the game. A 1970s running back's rushing yards are adjusted to reflect the different pace and style of football in that era.
Every completed game submits a normalized score to a global leaderboard powered by Firebase. Scores from all game types — draft simulations, trivia, spin challenges, and stat stack — are converted to a 0-100 scale so they can be compared fairly. You can view daily, weekly, monthly, and all-time rankings. Your rank shows you exactly where you stand among all players worldwide.
No account is required. All games are completely free and open to anyone. Your scores are saved automatically to your device so you can track your progress over time. If you want your name to appear on the global leaderboard, you can set a display name from the leaderboard page — no email or password needed.
Franchise Lab covers the NBA (82-0 Challenge, NBA Trivia, NBA Spin Challenge, NBA Stat Stack, NBA Name 'Em All), MLB (162-0 Challenge, MLB Trivia, MLB Spin Challenge, MLB Stat Stack), and NFL (17-0 Challenge, NFL Trivia, NFL Spin Challenge, NFL Stat Stack, NFL Name 'Em All). New games and sports are added regularly.
Unlike fantasy sports platforms that focus on current-season players, Franchise Lab spans the entire history of each sport. You can draft Babe Ruth alongside Mike Trout, pair Michael Jordan with LeBron James, or build a Patriots roster from every era of their history. The simulation engine is built on real statistics rather than arbitrary ratings, so results reflect genuine sporting merit.