The main curreny of Adelia is coins.
There are 3 types of coins: bronze, silver and gold. 64 bronze = 1 silver, 64 silver = 1 gold. You can convert between coins from merchants.
When buying an item you will see it's price on the last line. You need to double click to buy.
You can sell items to merchants. You can see total coins you are going to receive on bottom. Double click bottom right wool to complete.
You can SHIFT + RIGHT click another player to send a trade invite.
You can create a bazaar from menu. Other players can open your bazaar by LEFT clicking. Your items on sale and earnings are stored in your bazaar storage for protection.
You can see daily rewards from menu. To get today's reward, you must have gotten yesterday's reward. Daily rewards resets weekly.