# Thetan Box Thetan box is a box system sold by Thetan Arena system to users on **the Marketplace**. Purchase a Thetan Box costs THG and THC depending on what kind of Thetan Box you choose (Use THC to purchase Common and Epic boxes. THG for Legendary boxes). The THG portion is variable and subject to adjustment based on a myriad of economic factors. ![](/files/8uNVAmHDwlXW5bdzJG5b) ***Note:** The Formula based on THG real-time rate* ### Thetan Box Drop-Rate ![(Last updated on 23 Jan 2022 - this drop rate will apply at 12 PM UTC 24 Jan)](/files/x2xZMGcREWIATFHZgsII) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://doc.thetanarena.com/play-to-earn-1-0-system/nft-items.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.