This game looks pretty interesting. I will surely follow the progress.

Will there be research "resource", all researches will be made using classic resources or in another way?
Thanks (btw. you are the first one following the game)
The research system will be major part of the game.
At first it will be simple, and as you progress through the game it will get more advanced.
It will be easiest to give few example so you can get an idea of how it will be done.
At first you will have to find small stone, break few branches off a tree and get vines.
Tier 1Stone Axe (Pick axe, hammer, knife, chisel will follow the same procedure expect for shape)Gathered resources: 2 stones, stick, vines/rope
1 - Shape the stone using the other stone (of find one that is already shaped)
[~50% success rate, there will be few options for the shape]
2 - Split one end of stick using the sharp stone[~30% success rate,] (or knife[~80% success rate,will increase the chance of success])
3 - Place the sharp stone and tie it up using either vines or rope [~80% success rate]
When failing to craft an item you can loose some or all of the components.
Stone "Furance"(still not sure about the name)Gathered resources: at least 3 stones (including one that will be flat)
Stones (o) placed in this shape
oooooooo <- 1 big stone
oo oo <- 2 small stone
Will create a basic "furance" that can be used to cook food or smelt ore
Adding fuel and setting it on fire will activate it
Tier 2Will require some way of making notes:
- Chisel/Knife(stone) and stone/wood plank
- Paper and ink
- Notes book
- Computer
Mine carts (parallel with rails)Required: Metal, Wheel(research), Axle(research), Container(research)
(all you need is research notes, but using the items will speed up the research)
Combining Wheel with Axel and Container will give you a mine cart prototype.
Then a mine cart will have to be placed on rails to test it.
Then you can start producing mine carts.
Rails (parallel with mine carts)Required: Metal and Wood
The shape of rails will have to be researched and combined with wooden planks to create rail prototype.
Then a mine cart will have to be placed on rails to test them.
Then you can start producing rails.
This is only a brief description of the crafting and research system.
I will be posting a detailed crafting and research system notes on my blog in few days.