Build a football career in your browser
StarBoySim is a free browser football career simulator. Create one player, draft their attributes and follow their club and international career from their first season to retirement.
What do you control?
Choose a position, country and draft mode, then build your attributes from the players offered in each spin. Between seasons you choose a training focus, compare contract offers and decide whether to stay or move. Results are simulated, so a strong build still has to earn its place.
What happens during a season?
Club seasons include league football, domestic cups and European competitions when your club qualifies. International call-ups can add friendlies, qualifiers and major tournaments. Season reviews show appearances, goals, assists, ratings and trophies alongside competition breakdowns.
Can you play for free?
The regular career game is free and runs in your browser without an installation. An account is optional for playing. Signed-in players can track achievements and choose to submit eligible completed careers to the leaderboard. Supporter membership adds Sandbox, Career Rewind, themes and match-by-match playthrough.
What should you try first?
Start with a position you enjoy, use Original draft mode for a mix of current players and legends, and play a few seasons before using quick simulation. Compare minutes and performance as well as overall rating when choosing your next club.