Stone Quarry

The Stone Quarry in Dungeon Keeper generated stone at a certain rate per hour, which was used to buy certain traps and upgrade certain rooms.
If the Stone Quarry reached storage capacity, it would not generate any more stone until it was collected.
Stone Quarries were not built, but rather, claimed.
==Notes==
*Generated Stone.
*Entry point for invaders.
*Uncollected Stone was more vulnerable to theft.
*Bolstering increased Stone production.
*Upgrading Stone Quarries was required to upgrade certain buildings. This could be avoided with the Room Sale, though this was rare and only occured 3-4 times per year.
*If a gem vein next to a mine had been dug out, it could no longer be sealed shut again. A path must always have ran to it, even if it was unclaimed.
*It was recommended for new players to avoid claiming all four Stone Quarries; leaving one, such as the centre left one, unclaimed helped protect your dungeon.
*With Room Sales, it was possible to reach max level buildings with only three Stone Quarries.
==Upgrades==
Level	Stone Production	Stone Storage	BuildTime	Upgrade Cost(Gold)	ForgoneStone	Break Even Days1	Dungeon Heart Required
1 	400/h 	600 	0m 	150 	0 	0.00 	-
2 	800/h 	1,200 	10m 	400 	67 	0.01 	Level 1
3 	1,200/h 	1,800 	30m 	800 	400 	0.06 	Level 1
4 	1,600/h 	3,000 	1h 	1,600 	1,800 	0.25 	Level 2
5 	2,000/h 	15k 	2h 	3,500 	6,400 	0.83 	Level 3
6 	2,600/h 	30k 	4d 	7,000 	24,000 	2.17 	Level 4
7 	3,200/h 	50k 	8h 	15k 	62,400 	5.33 	Level 5
8 	3,800/h 	100k 	16h 	40k 	153,600 	12.67 	Level 6
9 	4,400/h 	150k 	1d 	80k 	273,600 	22 	Level 7
10 	5,000/h 	200k 	1d 12h 	150k 	422,400 	33.33 	Level 8
11 	5,500/h 	250k 	2d 	2.5M 	720,000 	? 	Level 11
12 	7,800/h 	300k 	2d 12h 	4M 	? 	? 	Level 12
13 	8,000/h 	350k 	3d 	6M 	1.498M 	42.67 	Level 13
14 	10,000/h 	400k 	4d 	8M 	2.07M 	45 	Level 14
15 	12,500/h 	500k 	5d 	10M 	? 	? 	Level 15
16 	15,000/h 	600k 	6d 	12.5M 	3.96M 	66 	Level 16
17 	17,500/h 	700k 	7d 	15M 	5.18M 	84 	Level 17
18 	20,000/h 	800k 	8d 	17.5M 	6.55M 	104 	Level 18
19 	22,500/h 	900k 	9d 	20M 	? 	? 	Level 19
20 	25,000/h 	1.0M 	10d 	25M 	? 	? 	Level 20
21 	27,500/h 	1.1M 	11d 	30M 	? 	? 	Level 21
22 	30,000/h 	1.2M 	12d 	35M 	? 	? 	Level 22
23 	32,500/h 	1.3M 	13d 	40M 	? 	? 	Level 23
24 	35,000/h 	1.4M 	13d 	45M 	? 	? 	Level 24
25 	37,500/h 	1.5M 	13d 	50M 	? 	? 	Level 25
26 	37,500/h 	1.6M 	14d 	51M 	? 	? 	Level 26
27 	37,500/h 	1.7M 	14d 	52M 	? 	? 	Level 27
28 	37,500/h 	1.8M 	16d 	53M 	? 	? 	Level 28
29 	37,500/h 	1.9M 	18d 	54M 	? 	? 	Level 29
30 	37,500/h 	2.0M 	20d 	55M 	? 	? 	Level 30
31 	37,500/h 	2.1M 	21d 	56M 	? 	? 	Level 31
32 	37,500/h 	2.2M 	22d 	57M 	? 	? 	Level 32
33 	37,500/h 	2.3M 	23d 	58M 	? 	? 	Level 33
34 	37,500/h 	2.4M 	24d 	59M 	? 	? 	Level 34
35 	37,500/h 	2.5M 	25d 	60M 	? 	? 	Level 35
1 Break Even Days is how long, from the time you start the upgrade, until you have the same amount of stone as if you didn't do the upgrade.  Simply put, how long until you are making more than you would have by not upgrading.
Note - Max level is 35
==References==
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