3

I bought about 10 quarries before last reset. This game I bought 1. Seems like by the time I can buy them I'm already mostly maxxed on mineral production and the steel cost of buying one makes me want to avoid the cost.

Almost every other building I build I want to max, but not this one, am I missing something?

  • 2
    I seem to recall them boosting coal production. I haven't played in a while, but I think the main reason I get them is coal, which usually pays for the steel cost... – gatherer818 Feb 1 '15 at 23:19
3

The quarry has two effects: improving the mineral production and produce a bit of coal. Other then that, it doesn't do anything. But I found that coal was a resource I was lacking during midgame, so that's why I built quite a lot of them myself. So the mineral boost is not that necessary, but the little bit of coal is.

From the source code:

effects: {
    "mineralsRatio": 0.35,
    "coalPerTickBase": 0.015
}
  • Yeah this is true, but it seems like by the time the coal production offset the steel cost I'd be beyond needing the steel. – thepaulpage Feb 2 '15 at 15:12
  • Hmm, I didn't notice that, but I didn't think about it either too. So if you think the steel is not worth building a quarry, don't build the quarry. The quarry has no other effects then these two after you built the first one (I don't think it unlocks anything, but just to be sure) – Mathias711 Feb 2 '15 at 15:14
0

At the beginning, I only get a few, more for the coal income than the minerals. Later (much much later) I get a lot so I can take kittens off mining and put them in priest. You can start doing that whenever you get excess steel though.

0

After you get the Orbital Geodesy upgrade, quarries also produce uranium. I found this very useful when I couldn't build Planet Crackers fast enough to supply my Lunar Outposts.

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