> For the complete documentation index, see [llms.txt](https://whitepaper.anttime.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://whitepaper.anttime.net/products-and-services/antarena/flip.md).

# FLIP

Flip Games are short-duration directional prediction markets where players predict whether a cryptocurrency asset will move UP or DOWN during a fixed round.

These games emphasize:

* rapid decision making,
* market intuition,
* and real-time competition.

All Flip Games utilize Parimutuel settlement systems.

***

## BTC Flip

### Overview

BTC Flip is a 5-minute directional prediction game based on Bitcoin price movement.

Players predict whether BTC closes:

* ABOVE the opening price,
* or BELOW the opening price.

***

### Gameplay Structure

#### Round Duration

* Total Round Time: 5 Minutes
* Betting Window: Early phase only

Betting locks before settlement to prevent last-second sniping behavior.

***

#### Player Choices

| Option | Prediction          |
| ------ | ------------------- |
| UP     | BTC price increases |
| DOWN   | BTC price decreases |

***

### Settlement Logic

| Market Result | Winning Side |
| ------------- | ------------ |
| Close > Open  | UP           |
| Close < Open  | DOWN         |

***

### Refund Conditions

Rounds are voided and fully refunded if:

* opening and closing prices are identical,
* or oracle data becomes unavailable.

***

### Payout Model

BTC Flip uses:

* Parimutuel liquidity distribution,
* dynamic player pool balancing,
* and 1% platform fee deduction.

***

## ETH Flip

### Overview

ETH Flip follows the same gameplay structure as BTC Flip using Ethereum price data.

Players compete by predicting Ethereum market direction during short-duration rounds.

***

### Core Features

* 5-minute rounds
* UP / DOWN prediction structure
* Dynamic pool-based payout calculation
* Real-time settlement

***

## SOL Flip

### Overview

SOL Flip applies the Flip Game model to Solana market movement.

The game is optimized for fast-paced market participation and high replayability.

***

### Key Mechanics

* Short prediction windows
* Dynamic odds
* Refund protection
* Liquidity-supported payout balancing