Now analysing the images.
First image.
Silicon could either be a starter metal or a more advanced one, or who knows, maybe metals won't be tiered and will each have different properties that make them all good on their own. Though the area looks like it would be the starter area.
As for the turrets, they seem to be made of copper as well as stone or iron or lead or silicon, since it looks similar to the armor set, which is likely to be the silicon set. Though the armor set could also be the iron set or the lead set. The turrets at the far right and far left have another material that could be tungsten.
Looking at the minimap, there is what looks like to be a glowing mushroom biome, with a crystal at a lower level. The ores are hard to tell, the brown patches could be copper, or maybe iron, and the silver patches could be tungsten or silver, or maybe iron.
There are four kinds of purple soils, one is probably corrupt dirt, a more purple one is probably corrupt stone, the more blueish one is probably corrupt sand, and finally a brighter purple one is probably demonite.
The red staff could be made of crimtane, or could be an unique item, same for the golden hammer, which could be made out of gold or be an unique item.
There are green torches, probably cursed torches.
Second image.
You can notice a cleansing field produced by a crystal, you can see it cleansing the red orange stone, which may be Crimson. You can see patches of obsidian everywhere, as well as two gold patches.
On the bottom right you can see a gem cave, containing emeralds and either amethysts or sapphires.
You can see what are probably seven upgrade slots. However, with a closer look, we can see the same seven slots on the first image, which would mean the first image would have to be taken before the second, and that the slots would have to be shown at all times. There is also an eighth slot to the bottom right, its purpose is unknown. We can also see that the minimap is actually hidden in the second image, not cut from it.
To the left of the crystal are two unknown items, one looks like a sort of monolith, and the other looks like gold bars piled up.
There is a skeleton enemy that is about to be melted in lava wearing armor and wielding a shield and a dagger or a shortsword.
Two purple spherical entities, they are slightly transparent, so they could be slimes. Probably purple slimes or black slimes or baby slimes or obsidian slimes or corrupt slimes.
Curious blue torches, they are reminiscent of water candles.
Below the player are three whiteish and two trasparent pinkish white particles that seem to be from a dying monster.
Unknown sparkly blue shining thing.