Overview
Be sure to check my other guide about Act 2!This is a guide how to earn a lot of money in act 1. You will have to farm if you want to get the Blasphemer’s armor, which can only be crafted in Act 1. More info here how to craft them [witcher.wikia.com]
Location
So the main idea is that you will have to farm nekkers in the caves under Flotsam, then sell their organs at a merchant to get money.
Here is the entrance to the cave:
It is the cave you have to go in the quest titled: Malena
Just some visual indication where it is:
In the cave
In the cave you will be heavily outnumbered by nekkers. If you are in the beginning of the game and you are weak, you will have to use bombs, traps and everything at your disposal to kill them as there are a lot of them here. (You can find traps in the forest around flotsam.)
But once you cleared out the cave for the first time, just put down traps here:
After you looted their corpses, don’t forget do rearm the traps again!
Once the bottom floor of the cave is clear you can climb up from here to another section that has 3-4 nekkers as well. It’s much easier to kill them, but it’s worth it for their loot.
Rinse and repeat
Once you’re clear, you have to make the nekkers respawn.
Go back one step at the cave entrance. No need to climb all the way back. One step is enough.
Wait 12 hours, then go down again. The nekkers will be respawn.
Closing thoughts
Be sure to check my other guide about Act 2!
If you don’t want to grind and would prefer cheating instead, you can make yourself more money with Cheat engine. this video explains quite well how it works: