In order to play on our servers you will need a valid Steam copy of Team-Fortress 2. TF2 is a FREE game which you can download here: http://store.steampowered.com/app/440/
Does this link launch TF2? If not, re-installing the steam client should resolve the issue. You can also manually connect to a server address through the game console (enable in settings then press ~), or by adding the server address to your favorites list in the server browser.
You will be automatically connected to the server.
While in game you earn uLithiums for all of your actions, a detailed break down can be found here: TF2 Information.
The process of earning cryptos works like this:
|1.||Play on the servers and earn uLithiums|
|2.||Request a withdrawal|
To prevent fraud withdrawals must be manually approved by an admin. Withdrawals are approved once every 24 hours.