First, we need to go to the Job's Location (see map above). There, we will find 2 markers:
We need to enter the marker on the right first to start the job.
Then, we will enter the arrow on the left to go to the Cave.
After entering, we will see the Cave entrance area
Slightly further, we will have to choose tunnel
To the left, we will find Iron and Sulfur. To the right, Gold.
If we continue with the left tunnel, we will be able to mine Sulfur, which will give us Explosives
(
and therefore we do not need to buy them).
Then, further down, we will encounter a lot of Iron and some Sulfurrocks.
How to mine? Simply walk to the rock and notice the information in the bottom right corner of your screen:
GPS Position does not concern us very much.
Integrity - this basically means how much more is left for us to mine.
If the integrity is 25% or below, then we will not be able to mine any further.
Surface inspected - type of the rock we are facing
Sulfur quantity - the type of mineral we will mine (Sulfur = explosives) and RICH means we will get a lot of it when mined.
There can also be AVERAGE and POOR quantity - this will not give a lot, so we should always try to find RICH rocks.
To start mining, we simply click Left Mouse Button. If it's Sulfur, then we will just drop a debris for us to pick up.
However, if we are mining Iron and Gold, we will place a dynamite (costs 2 explosives to mine them)
After the time runs out, there will be a small explosion that will spawn debris for us to pick up.
If we go down the left tunnel, we will reach a huge Iron an Sulfur area
While exploring, we can reach drowned tunnel.
It can be reached by going to the left after reaching the huge area
(it's the right entrance on the screenshot below)
Before it, there will be a pump with a red marker next to it
Simply enter the marker and there will be an information in the bottom right corner
After pressing 'N' (if we have bought / crafted the Jerry Can), the marker will turn to green and the water will start to drain (~30cm every second).
We will also be rewarded with a small bonus to mine minerals for helping by draining the tunnels (10% - 50%).
This will lead us to another big area with a lot of Iron
Another worth mentioning area is the Sulfur dump, that can be found by going to the right after reaching the huge iron area
(we must go upstairs)
There's a hole in the floor that we can safely jump down into
(we will be able to easily find an exit from there, so don't worry)
Now we are only missing an explanation of what's in the right tunnel at the beginning
If we decide to follow this tunnel, we'll need another Jerry Can to drain it.
A long journey awaits, so be patient.
After walking / swimming through the green/grey rock, we will reach the Gold area
The brown walls will give us Gold, so we can easily mine here.
Going further down the tunnel will lead to another area, that is partially drowned and cannot be drained anymore
(similar to the Iron's drowned area)