Iron ore is a raw, unrefined crafting component that you will find in Deadcraft. This resource is quite common in the early stages of the game but it must be gathered through mining ore veins as opposed to other crafting components which are found by simply picking them up off the ground.
Mining Ore Veins
Ore veins are quite common in the earlier stages of the game. You will find quite a few of them normally appear in the location where Zombie Dude normally spawns. You will need to hit them a few times and this will trigger the item to break and drop the ore.
If you want to make the most of this process, it is worth spending some money upgrading the skills under the abilities menu. This will grant you a nice bonus so that you will often get 4 or 5 pieces of ore every time you harvest some. This will save you lots of time as the items that you pick up from the game world, things like cars, rags, wooden stacks, etc will reset each day. It is better to be able to get 4 or 5 per day than only being able to get one.
It is possible to shake down anyone in a town but you want to avoid doing this as it will give you a wanted level. Early on in the game, you will come across lots of enemy groups called Bawkers. These guys are human and sometimes when you hit them two or three times, they will fall over and you can perform a shakedown on them. By default, you will only be able to take one item from an enemy when you shake them down but there are skills that can increase this.
Complete Notice Board Quests & Side Quests
The notice board is the most reliable source of crafting components as the quests available will reset each day and the requirements can be as simple as killing three zombies or providing 2 sludge. The rewards for these quests can include a range of different crafting components. Since you will also get a nice bonus of money and SP points, you should aim to do as many of these quests as you can each day to progress as fast as possible.