> For the complete documentation index, see [llms.txt](https://docs.sweep.finance/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sweep.finance/ecosystem-components/platform/changer.md).

# Changer

#### **What is Changer**

Changer is a value-based game where users convert their existing balance into a specific asset or value they select.

Unlike fully randomized games, Changer allows users to define their desired outcome. However, each conversion is associated with a calculated probability, meaning users must accept the defined chance before executing the action.

This creates a controlled yet dynamic experience where users combine choice with probability.

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#### **How it works**

Users begin by selecting the amount they want to use and choosing the target asset or value.

After defining their selection:

* The system calculates a probability for the chosen outcome
* The probability is displayed clearly to the user
* The user reviews and confirms the action
* The system generates the result instantly

If the attempt is successful:

* The user receives the selected target

If the attempt is not successful:

* The input amount is used within the attempt

The outcome is determined based on predefined system logic and the displayed probability.

***

#### **Key mechanics**

Changer operates on a selection-based probability model.

* Users choose the exact target they want to receive
* Each selection is associated with a specific success probability
* Higher-value targets result in lower probability
* Lower-value targets result in higher probability

This allows users to directly control both the potential outcome and the level of risk.

Unlike Upgrade, where outcomes are fully random, Changer introduces a system where users make decisions based on visible probabilities.

Each interaction also contributes to the platform’s economic model:

* Every action generates transaction volume
* Activity within Changer generates protocol fees
* **Half of the generated fees are directed to the SWEEP burn mechanism, while the other half is allocated to USDT distribution**

This ensures that even user-controlled interactions remain integrated into the broader Sweep ecosystem.