> For the complete documentation index, see [llms.txt](https://linity.gitbook.io/linity/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://linity.gitbook.io/linity/project/project-page-details/opportunities.md). # Opportunities Most of the projects posted on Linity offer active opportunities. These opportunities are categorized into: 1. **Testnet** - This is a completely free opportunity where participants must complete a series of missions for a chance to be rewarded with an airdrop in the future. 2. **Mainnet** - This opportunity requires participants to perform on-chain actions. These actions usually incur some costs, such as gas fees, or require a certain amount of funds to create on-chain volume to achieve a better position among all users. 3. **NFT** - This category includes opportunities closely related to NFTs (non-fungible tokens). The '**Opportunities**' section shows you a list of all ongoing, completed, and past opportunities related to a specific project: * In the '**Ongoing**' opportunities, you will find information about: * The type of opportunity; * Our rating of the opportunity; (link to rating page) * The minimum costs required; * The number of missions you have completed.

* The **'Completed'** section shows opportunities where you have finished all the required steps.

* In the '**Past**' section, you will find all the opportunities related to the chosen project that have already ended. Additionally, you will be able to see the rewards received by users who participated in them.

Past (ended) opportunties of the project

By clicking on any of these sections, you'll be directed to the page of the chosen [opportunity](/linity/opportunity/what-is-an-opportunity.md).