To earn steem, you play at the hourly minigame. Starts every full hour, if you join around xx:55, you can type /mg or /steemcraft and join the Minigames Server. There, you can vote for a Gamemode and wait until it starts. There are at least 2 players needed to start.
If you want to get some (small) rewards, you can connect your Steem Account to our server using the command /steem. With that done, the server is going to post for you, if you get on the top 3 of a minigame and this post gets upvotes. Additional to that, there is a voting trail bot which is voting for the posts, for that, you get some Rewards too in Ingamecurrency, which can be transfered into STEEM.
We have coins (Taler) on the server. Every Taler (coin) is worth 0,00005 STEEM, you can farm and sell stuff and transfer it into your STEEM account soon.
This thing works most of the time, but there are still some bugs and the software behind to do all the stuff with steem is experimental. As soon as this is working smoothly without interference, we're going to work on making things easier to understand.