> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://docs.sport.fun/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# What is Sport.fun?

| Sport.fun is a fantasy sports trading game. You build a squad or roster by signing player shares, compete in tournaments scored by real match data, and earn rewards based on where you finish.

Sport.fun runs in two modes: **Free to Play** (free, global, off-chain) and **Pro** (real-stakes, non-custodial, on-chain on Base). Football is live in both modes. NFL is Pro only.

### How it works


Instead of choosing a new fantasy team for every competition, you build a longer-term squad by signing shares in real players. Prices move with demand, while tournament results are determined by real match data.


* **Choose a game.** Football is available in Free to Play and Pro. NFL is available in Pro.
* **Sign player shares**. Build a squad or roster of players you think will perform well.
* **Compete.** Eligible players enter tournaments and score points from their real performances.
* **Earn rewards.** The rewards you receive depend on the game you are playing and how well your players perform.
* **Strengthen your squad.** Reinvest your rewards and keep building over time.

### Ready to get started?

The video below gives a rundown on how to get started in the game: 

${frame}[](https://www.youtube.com/embed/RGs_yQ7Ounk?si=Lr3KZCD2iXJ2FSMf)