Step 1: Find and mine emerald ore by using a stone pickaxe

Step 2: decide whether to use you emerald to make weapons or use it to make emerald blocks so you can make a emerald portal.

Step 3:use emerald to make emerald armor so you can breathe in the Gremora realm

Step 4: kill things with the emerald weapons or travel into the gremora realm and meet the people of gremora and if you have gold you can right click to make friends with them, otherwise they are passive-aggressive.

Step 5: make a house in gremora or live in one of the towns

Step 6: have fun