Swap ore around to achieve maximum purity while digging ever deeper.  Well, presumably your captain is digging you deeper into the depths, you're just working the REFINERATOR.

Controls: Use mouse or touch to drag ore around.  No keyboard or gamepad support in this one, sorry.

Instructions/Tips if you can't figure out how to play from the (very brief) in-game help dialog:

  • Ore can only be swapped with the 4 diagonals, never directly above
  • See the in-game help (press the button, H, or F1)
  • Your goal is to get all GOLD in the left column, and then press the Refinerator button (or press SPACE) to turn it into a bar.  12 bars and you win.
  • You lose fuel / get penalty points if you ever refine something that is not pure GOLD, -1 point if it's all COAL/STONE, -2 points if you waste any GOLD.  If you lose 25 points, it's game over.  (Note: no points are lost if you haven't actually scored a pure gold yet - I put this in to help people learn by experimenting but I'm a little worried they'll learn the wrong lessons :D )
  • If you're getting stuck, pick a spot in the left column, pick a GOLD, and think about which ore needs to be in the path between them (e.g. a bunch of COAL if you need to move it up, a bunch of STONE to move it down), then get those in place, and only when the path is clear move the GOLD.

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