About F1 Legend Sim

F1 Legend Sim is a free Formula 1 simulator, made by fans for fans. It started from a simple idea: instead of arguing forever about what would have happened if a legendary driver had had another car or raced in another era, let a simulation engine play that scenario out and return a concrete answer. You pick the drivers, the car and the season, and the simulator races it for you, from a single Grand Prix to a whole championship.

Where the data comes from

The database covers the full Formula 1 grids from 1988 to 2026, 39 seasons with the real race drivers of each year, plus legends from earlier eras. Every driver has attributes (overtaking, cornering, braking, reactions, one-lap pace, aggression and consistency) on a 50 to 99 scale, calibrated against their real results. Every team carries a car performance and a reliability value that reflect the real competitive order of that season. Historical results come from public F1 statistics sources.

How the engine works

The engine does not flip a coin. Each Grand Prix models qualifying by sessions, a full grid of real rivals, changing weather, tyre wear across a stint, pit stop strategy, mechanical reliability (with retirements) and safety car periods that bunch the field back up. On top of that it adds a controlled amount of randomness, the luck every real race has, so two simulations of the same scenario do not come out identical. You can run one race, a whole season, or a Monte Carlo batch of hundreds of simulations to see how often your line-up wins.

What you can do

There are eleven modes, split into two ways of playing. The ones you play in one sitting: the Roulette, which draws your drivers and car; What if?, where you build any scenario you like; the Garage, to put together a team mixing eras; Streak, duels against ever stronger rivals; and Multiplayer. Three of them change every day and are the same for everyone: the Daily Challenge, Predict the GP and the Daily Manager.

And the ones you come back to: Manager Mode, where you run a team season after season and set the strategy for every Grand Prix; The Racing Line, a driver's career from karting to F1; and The Pit Wall, running a team that starts out in F4. For the details, the How it works page goes through them step by step.

Legal notice

F1 Legend Sim is an independent fan project with no intention of representing Formula 1. It is not affiliated with, sponsored by or endorsed by Formula 1, the FIA, the teams or the drivers. All trademarks and names belong to their respective owners and are used for information and identification only. Simulation results are fictional and do not represent real events.

Contact

For any question, suggestion or report you can write to danielcangomez@gmail.com. See also our Privacy policy and the Terms of use.