So this is the first time I've played the Kittens Game and I have no idea what I have to do to get iron? I need it for some upgrades but so far I don't get how to produce it. Help??

  • 1
    Have you researched "Metal Working" in the science tab?
    – troylatroy
    Commented Mar 13, 2015 at 19:02

2 Answers 2


Iron is produced by Smelters from Minerals and Wood. Smelters can be built once you've discovered Metal Working. You also need to research Construction to unlock Iron.

  • 4
    And to head off the next (highly common) question, once you've built smelters, make sure to turn them on or they won't produce anything. (The +/- buttons on the Smelter control that.) Commented Mar 13, 2015 at 21:08
  • That means click the text Smelter (0|0), to build a smelter. Which makes it Smelter (1|0). Then click the + button to make it Smelter (1|1) to being production.
    – House
    Commented Mar 13, 2015 at 22:09
  • I'm fairly sure you could unlock Iron before Construction and use it on things like upgrading your farming/woodcutting equipment.
    – Muz
    Commented Nov 23, 2015 at 1:46

To make your first iron:

1) Research [Science] 'Mining' to unlock the 'mine' building.

2) Research [Science] 'Metal Working' to unlock the 'smelter' building.

3) Assign at least one kitten as a miner to produce minerals.

4) Assign at least one kitten as a woodcutter to produce wood (fuel).

5) Build a smelter and turn it on.

6) A smelter consumes minerals and wood and produces iron.

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