Coal Age
  Stone Age
    Can only get up to stone-tier pickaxes. This can only mine so deep into the earth. Flint pickaxes only have 3 durability.
    You are able to get wood, clay, basic stone, coal, and pyrolusite (manganese). Coal is rare.

    Oven
      Oven are multiblock structures built out of stone core blocks and bricks. These are used to bake food, like bread, which is the only "good" food at this point. More on food later.

    Bricks
      Bricks are made by combining sand and clay to get a Soft Brick. This can be smelted. Early game, soft bricks are made inefficiently by shapeless crafting. Bricks are made in machines.

    Kiln
      This is a wooden machine in which coal and soft bricks are input, and bricks are very slowly made. This is the first machine a person will make.

    Smelter
      The first ore processing machine that will last you a fairly long time. It is made of stone and bricks. You can currently only process Manganese and wooden logs in it. You can turn this manganese into a pickaxe of end-low-tier.
      With this pickaxe, you will be able to mine into the Steam Age.

  Brass Age
    You can now get up to brass-tier pickaxes. This can only mine so deep into the earth.
    You are able to get all Stone Age materials, but now also the end-early-game stone, zinc, and copper. Coal is much easier to find in this level of the earth. Pyrolusite is not.

    Machines
      Basic Boiler
        Used to turn solid fuels and water into steam. Steam will be automatically shot out of the top of the boiler, so you will want to make pipes and a tank.

      Pipes
        Used to transport steam.

      Basic Tank
        Used to store steam.

      //filler





Metal Age
  Iron Age
    //filler


  Mechanical Age
    Mechanical power


  Electrical Age
    Electrical power




Science Age
  You can now study more advance into the realms of science, to prepare you for the second-to-last age.

  Digital Age
    Everything is computers.

  Space Age
    Standard science fiction futuristic crap.