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

# Marketplace

An important section of the MetaPopit game is the Marketplace. It’s a place to buy, sell, and exchange items and power-ups with the community.

This in-game market  can be opened from the menu.

In the in-game market, for the Hard currency players can sell:

* hints
* checkpoints
* extra-time
* golden keys

In the in-game market, for the Hard currency players can buy:

* hints
* checkpoints
* extra-time
* golden key
* cosmetics
* recovery formula

NFT will be sold and bought in the existing, external market, not in our in-game market. 

Players can use free exchange in the in-game market:

* X coal = 1 extra time (+2 min)
* X fuel = 1 checkpoint
* X energy cell = 1 hint
* X coal + X fuel + X energy cell = Hard currency