This achievement will be unlocked pretty much no matter what but I’mm just going to be telling you the easiest way to get it.
First of all, create a character and start a game on the easiest mode. Once you get in just skip all the cut-scences and you will spawn in. (I switched to my swords because it’s easier to attack with them) Just progress through the level (All of the enemies will run up to attack you) and after about 3 minutes of playing you will get 10g.
Hoped this helped a little bit