Trading experience on CryptoGround is similar to any real crypto exchange. You can learn the nuances here:
Sign Up/Login on Cryptoground
Click on Trading Games
You'll be then redirected to the Game Page
In this section, you can buy/sell various cryptocurrencies.
Search and Select the coin you intend to trade from right corner price list
You can further filter the list based on Coin Name, Price or 24-hr Change
You can check historical data of the coin you chose through Line, Candle and OHLC Graphs
You can also compare prices from multiple exchanges like Bitfinex, GDAX, Kraken, Bitstamp and Gemini
You can download the graph image as well
You can buy/sell the cryptocurrency by setting various fields:
Here's a detail on each field:
Price - The current buy/sell prices displays. You can change this to create Limit Orders. (Limit Orders are executed when the specified price is reached)
Quantity - Fill the quantity you intend to buy/sell (e.g. 5 BTC)
Fee - This is decided by the game creator. You cannot change it
Total - Fill the total amount you intend to buy/sell (e.g. $500 BTC)
Note - You can either set Quantity or Total field, the other one will be calculated and set automatically
You'll be able to view the trade history of specific coin if you have traded it in past.
Click on LEADERBOARD to check ranks, number of trades, etc of other players in the game
You can check your rank from information bar.
Click on PORTFOLIO to keep a note of your trading portfolio.
Click on ORDERS to know your trading history.
You can also check Open Orders (Open Orders are the orders which are not yet executed - like Limit Orders)