> For the complete documentation index, see [llms.txt](https://whitepaper.bountykinds.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://whitepaper.bountykinds.com/token-ecosystem/usdffe.md).

# $FFE

FFE is the energy token that limits how many times a player can engage in BOUNTYKINDS games.

The Forbidden Fruit Energy Token is the energy unit in the game. It limits the number of times a player can engage in the games available within the BOUNTYKINDS universe. There are two types of FFE.

**Free FFE:** A player can hold up to 250 free FFE. To obtain more, the player must first spend what they hold. Free FFE is obtained in various ways, including the daily bonus, without needing to pay for it.

**Paid FFE:** $FFE is also available for purchase. Purchased $FFE tokens can be used to play the game when free FFE runs out.

### Where FFE Is Spent

| Content                  | Cost                               |
| ------------------------ | ---------------------------------- |
| MAP, per die roll        | 1 to 12 FFE depending on the Floor |
| Bounty Hall, per attempt | 2 to 20 FFE depending on the Stage |
| Arena, per match         | 2 to 6 FFE depending on Rank       |
| Casual Arena, per match  | 1 FFE                              |

The Bounty Hall can be attempted three times per day without consuming FFE, and Boost squares in the MAP grant an extra roll at no FFE cost.

See [MAP](/play-games/map.md), [Bounty Hall](/play-games/bounty-hall.md), and [Arena](/play-games/arena.md).

### FFE and User Level

User Level rises with the amount of FFE a player consumes. Each User Level up grants FFE and Bounty Points, and the daily bonus grants FFE according to the player's User Level. From Lv50, the maximum User Level, players receive one Lottery Ticket for every 150 FFE consumed. See [User Level](/gamefi-sustainability/user-level.md).

FFE can also be obtained from FFE Tickets. See [Items](/game-fi-elements/items.md).