Water

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Water

TypeNatural resource
Crafted material
StateFluid
Transported byPipe [II•III]
Pickup•Truck
Haul Truck (Tank)
Stored inFluid Storage [II•III•IV]
Shipyard
Created inBasic Distiller<br>Chemical Plant II<br>Cooling Tower<br>Cooling Tower (Large)<br>Cracking Unit<br>Groundwater Pump<br>Sour Water Stripper<br>Thermal Desalinator<br>Wastewater Treatment
Groundwater Well
Rainwater Harvester
Thermal Desalinator
Used inArc Furnace II<br>Baking Unit<br>Boiler (Coal)<br>Boiler (Electric)<br>Boiler (Gas)<br>Brickworks<br>Concrete Mixer<br>Concrete Mixer II<br>Concrete Mixer III<br>Cooled Caster<br>Cooled Caster II<br>Copper Electrolysis<br>Electrolyzer<br>Electrolyzer II<br>Exhaust Scrubber<br>Farm<br>Fast Breeder Reactor<br>Food Processor<br>Greenhouse<br>Greenhouse II<br>Hydrogen Reformer<br>Incineration Plant<br>Irrigated Farm<br>Liquid Dump<br>Microchip Machine<br>Microchip Machine II<br>Mill<br>Mixer<br>Mixer II<br>Nuclear Reactor<br>Nuclear Reactor II<br>Silicon Crystallizer<br>Thermal Storage<br>Water Chiller<br>Water Facility

Water, specifically fresh water, is a vital natural resource in the game, extracted by pumping groundwater with a Groundwater Pump or collecting rainfall via a Rainwater Harvester in the early game. It’s essential early on for producing Concrete Slabs in the Concrete Mixer and refining Impure Copper in a Copper Electrolysis. From the mid-game onward, water becomes available through Groundwater Wells on the World Map and via Thermal Desalinators, fueling petrochemical production chains and steam power generation.

Excess water can be dumped into the ocean using a Liquid Dump, but this is rarely advisable due to its widespread use and the finite nature of groundwater reserves, which can deplete without rainfall.

Groundwater and Rainfall

Groundwater reserves are finite but regenerate slowly through rainfall. The replenishment rate depends on the reservoir’s capacity and the intensity of the rain. For example:

  • A 15,000-unit reservoir regenerates 14 units per day during normal rain (50% intensity) and 28 units per day during heavy rain (100% intensity).
  • A 12,000-unit reservoir regenerates 11 units per day in normal rain and 22 units per day in heavy rain.


The replenishment formula for groundwater is:

Daily Regeneration = (Reservoir Capacity × 0.00185) × Rain Intensity

Where:

  • 0.00185 is the base replenishment rate (0.185% of capacity per day).
  • Rain Intensity is 0.5 for normal rain and 1.0 for heavy rain (values are rounded to whole units).

For a 15,000-unit reservoir:

  • Normal rain: 15,000 × 0.00185 × 0.5 = 13.875 (rounds to 14 units).
  • Heavy rain: 15,000 × 0.00185 × 1.0 = 27.75 (rounds to 28 units).

A Rainwater Harvester collects water directly from rainfall, producing 0.5 units per day during normal rain and 1.0 unit per day during heavy rain.

A Farm collects water into its soil buffer, regenerating 2.5 units per day during normal rain and 5.0 units per day during heavy rain.

The replenishment formula for rainwater harvesters and farms is:

Daily Regeneration = Base Rate × Rain Intensity

Where:

  • Base Rate is 1.0 for a Rainwater Harvester and 5.0 for a Farm (assuming no yield multipliers).
  • Rain Intensity is 0.5 for normal rain and 1.0 for heavy rain.
  • Note: These rates assume the global rain yield multiplier is 100%. If modified (e.g., via research), the rates will scale accordingly.

Over a year, assuming 40 rainy days:

  • A 15,000-unit reservoir regenerates 560 units in normal rain (14 × 40) or 1,120 units in heavy rain (28 × 40).
  • A Rainwater Harvester yields 20 units in normal rain (0.5 × 40) or 40 units in heavy rain (1.0 × 40).
  • A Farm collects 100 units in normal rain (2.5 × 40) or 200 units in heavy rain (5.0 × 40).


The number of rainy days depends on the weather, which varies by difficulty and year. See the Weather page for details on weather patterns and their impact on water availability.

Strategic Notes

Groundwater depletion is a real risk without consistent rainfall. Players should monitor reserves and consider supplementing with Thermal Desalinators in dry climates. Rainwater harvesters and farms can help in rainy regions, but their output is limited compared to wells, making them less viable for large-scale water needs in the mid-to-late game.

Recipes

Production

:
10
60
1
6
10 
60 
6
36
4
24
2
12
Tier II
:
14
42
12
36
20 
60 
12
36
1
3
Small
:
4
24
10 
60 
2
12
Small
:
4
24
10 
60 
2
12
Small
:
4
24
10 
60 
2
12
Large
:
16
96
10 
60 
10
60
Large
:
16
96
10 
60 
12
72
Large
:
16
96
10 
60 
8
48
Large
:
16
96
10 
60 
12
72
:
12
36
6
18
20 
60 
8
24
2
6
:
PROVIDES
8
48
/ 10 

/ 60 
:
12
36
1
3
20 
60 
4
12
3
9
7
21
:
5
15
8
24
20 
60 
11
33
2
6
:
12
72
4
24
10 
60 
12
72
4
24
:
18
108
2
12
10 
60 
13
78
7
42
:
18
108
1
6
10 
60 
12
72
7
42
:
36
108
3
9
6
18
20 
60 
12
36
24
72
:
80
160
4
8
8
16
30 
60 
60
120
18
36
:
80
160
4
8
4
8
30 
60 
40
80
12
24

Consumption

Tier II
:
24
72
1
3
2
6
20 
60 
16
48
2
6
2
6
Tier II
:
12
36
2
6
1
3
2
6
20 
60 
16
48
6
18
2
6
4
12
Tier II
:
16
48
1
3
2
6
20 
60 
16
48
2
6
2
6
Tier II
:
16
48
1
3
2
6
20 
60 
16
48
4
12
2
6
4
12
Tier II
:
12
36
1
3
1
3
2
6
20 
60 
16
48
6
18
2
6
4
12
Tier II
:
16
48
1
3
2
6
20 
60 
16
48
2
6
2
6
Tier II
:
16
48
2
6
1
3
2
6
20 
60 
16
48
6
18
2
6
12
36
:
8
16
4
8
30 
60 
12
24
:
8
48
18
108
10 
60 
8
48
6
36
:
8
48
18
108
10 
60 
8
48
6
36
:
8
48
5
30
10 
60 
8
48
10
60
:
8
48
8
48
10 
60 
8
48
6
36
:
2
12
10 
60 
2
12
:
4
24
10 
60 
4
24
:
8
48
9
54
10 
60 
8
48
12
72
:
8
48
12
72
10 
60 
8
48
12
72
:
8
48
6
36
10 
60 
8
48
15
90
:
8
48
12
72
10 
60 
8
48
6
36
:
8
48
9
54
10 
60 
8
48
12
72
:
8
48
9
54
10 
60 
8
48
15
90
:
8
48
9
54
10 
60 
8
48
12
72
:
14
21
4
6
4
6
40 
60 
8
12
8
12
Tier I
:
1
1.5
2
3
6
9
4
6
40 
60 
8
12
Tier I
:
1
1.5
2
3
6
9
4
6
40 
60 
8
12
Tier I
:
1
1.5
2
3
6
9
4
6
40 
60 
8
12
Tier I
:
1
1.5
2
3
6
9
4
6
40 
60 
8
12
Tier II
:
1
3
2
6
6
18
4
12
20 
60 
8
24
Tier II
:
1
3
2
6
6
18
4
12
20 
60 
8
24
Tier II
:
1
3
2
6
6
18
4
12
20 
60 
8
24
Tier II
:
1
3
2
6
6
18
4
12
20 
60 
8
24
Tier III
:
2
6
4
12
12
36
8
24
20 
60 
16
48
Tier III
:
2
6
4
12
12
36
8
24
20 
60 
16
48
Tier III
:
2
6
4
12
12
36
8
24
20 
60 
16
48
Tier III
:
2
6
4
12
12
36
8
24
20 
60 
16
48
Tier I
:
8
12
4
6
40 
60 
8
12
Tier II
:
8
24
4
12
20 
60 
8
24
:
16
24
4
6
40 
60 
13
19.5
Tier I
:
1
1.5
40 
60 
4
6
2
3
Tier II
:
1
6
10 
60 
4
24
2
12
:
30
180
4
24
10 
60 
1
6
12
72
4
24
 
4
24
:
54
27
120 
60 
7 %
3.5 %
:
84
28
27 %
9 %
180 
60 
26
8.67
:
108
36
32 %
10.67 %
180 
60 
58
19.33
:
128
32
42 %
10.5 %
240 
60 
60
15
:
144
36
60 %
15 %
240 
60 
22
5.5
:
160
40
48 %
12 %
240 
60 
66
16.5
:
192
32
63 %
10.5 %
360 
60 
58
9.67
:
324
27
72 %
6 %
720 
60 
60
5
FBR
:
96
384
1
4
15 
60 
96
384
1
4
FBR
:
96
288
1
3
20 
60 
96
288
1
3
FBR
:
96
192
1
2
30 
60 
96
192
1
2
FBR
:
96
96
1
1
60 
60 
96
96
1
1
:
10
30
3
9
1
3
20 
60 
5
15
2
6
:
6
9
4
6
1
1.5
1
1.5
40 
60 
8
12
3
4.5
:
10
15
2
3
40 
60 
8
12
2
3
Tier I
:
60
30
120 
60 
9 %
4.5 %
Tier I
:
93
31
30 %
10 %
180 
60 
33
11
Tier I
:
120
30
40 %
10 %
240 
60 
25
6.25
Tier I
:
123
41
35 %
11.67 %
180 
60 
73
24.33
Tier I
:
144
36
47 %
11.75 %
240 
60 
75
18.75
Tier I
:
164
41
68 %
17 %
240 
60 
28
7
Tier I
:
180
45
54 %
13.5 %
240 
60 
83
20.75
Tier I
:
204
51
68 %
17 %
240 
60 
30
7.5
Tier I
:
216
36
71 %
11.83 %
360 
60 
73
12.17
Tier I
:
360
30
82 %
6.83 %
720 
60 
75
6.25
Tier I
:
360
45
81 %
10.13 %
480 
60 
100
12.5
Tier I
:
486
54
152 %
16.89 %
540 
60 
220
24.44
Tier II
:
68
34
120 
60 
11 %
5.5 %
Tier II
:
105
35
34 %
11.33 %
180 
60 
39
13
Tier II
:
135
45
39 %
13 %
180 
60 
87
29
Tier II
:
136
34
45 %
11.25 %
240 
60 
30
7.5
Tier II
:
160
40
52 %
13 %
240 
60 
90
22.5
Tier II
:
180
45
75 %
18.75 %
240 
60 
33
8.25
Tier II
:
200
50
60 %
15 %
240 
60 
99
24.75
Tier II
:
224
56
75 %
18.75 %
240 
60 
36
9
Tier II
:
240
40
79 %
13.17 %
360 
60 
87
14.5
Tier II
:
400
50
90 %
11.25 %
480 
60 
120
15
Tier II
:
408
34
90 %
7.5 %
720 
60 
90
7.5
Tier II
:
540
60
169 %
18.78 %
540 
60 
264
29.33
:
6
18
4
12
20 
60 
12
36
12
36
4
12
:
48
144
2
6
6
18
20 
60 
24
72
6
18
:
48
144
2
6
6
18
20 
60 
24
72
6
18
:
16
48
2
6
6
18
20 
60 
24
72
6
18
:
16
48
2
6
6
18
20 
60 
24
72
6
18
:
54
27
120 
60 
7 %
3.5 %
:
84
28
27 %
9 %
180 
60 
26
8.67
:
108
36
32 %
10.67 %
180 
60 
58
19.33
:
128
32
42 %
10.5 %
240 
60 
60
15
:
144
36
60 %
15 %
240 
60 
22
5.5
:
160
40
48 %
12 %
240 
60 
66
16.5
:
192
32
63 %
10.5 %
360 
60 
58
9.67
:
324
27
72 %
6 %
720 
60 
60
5
:
ACCEPTS
2
60
/ 2 

/ 60 
Tier I
:
1
2
1
2
1
2
30 
60 
1
2
Tier I
:
1
2
1
2
1
2
30 
60 
1
2
Tier I
:
1
2
1
2
1
2
30 
60 
1
2
Tier I
:
2
4
1
2
1
2
30 
60 
1
2
Tier II
:
1
4
1
4
1
4
15 
60 
1
4
Tier II
:
1
4
1
4
1
4
15 
60 
1
4
Tier II
:
1
4
1
4
1
4
15 
60 
1
4

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