Arknights Farming Summary: Main Drops by Stage

Arknights Farming Summary

About Spreadsheet
Drops Chart Key
Rock Stages
Sugar Stages
Ester Stages
Oriron Stages
Keton Stages
Device Stages
Kohl Stages
Manganese Stages
Grindstone Stages
RMA Stages
Gel Stages
Alloy Stages
Crystal Stages
Solvent Stages
Fluid Stages
Salt Stages
Fiber Stages
Cyclicene Stages
Nodule Stages
Byproduct Rates, Data Sources & Date Changes
Video & Calculation Methods

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About Spreadsheet

Spreadsheet by PeterYR:

Author: PeterYR (u/PeterYR, peteryr)
Data updated: 28 day(s) ago
Includes: Drop data, main drop percentages, stages, and per-stage drops across multiple material categories
Inspired by: Arknights Material Farming with API Fetcher, Moe
Data sources: Penguin Statistics (drop rate data); Kengxxiao/ArknightsGameData (Workshop recipe data and operator data for demand vector/objective function)
Byproduct rates for Workshop recipe calculations:
Elite mats: +100% (Arene)
Skill summaries: +75% (Crownslayer)
Chips: +70% (Cutter)
Date Changes, changelog and methodology notes are included below in the Changelog section.

Drops Chart Key

Blue - main drop (T3 and below) (perm) – Permanent version of event stage
Yellow - other drops
Red - sanity lost (inefficiency)

Note: Data for Standard and Adverse stages are pooled for certain sections as described in the changelog. The main drop percentage is the contribution to the overall main drop from the stage's main drop and is used for farm efficiency calculations.

---

Rock Stages

Stage	Efficiency	Main Drop % [3]	Drops
---	---:	---:	---:
1-7	100.0%	75.6%	[chart bars here]
15-17	90.4%	75.6%	[chart bars here]
11-18	90.3%	52.4%	[chart bars here]
13-3	90.2%	42.8%	[chart bars here]
10-6	90.1%	69.5%	[chart bars here]
12-15	90.1%	52.3%	[chart bars here]
4-6	88.8%	50.7%	[chart bars here]
16-16	87.9%	42.2%	[chart bars here]
R8-3	87.6%	40.4%	[chart bars here]
7-2	86.7%	40.5%	[chart bars here]
9-13	86.5%	50.8%	[chart bars here]
IW-7 (perm)	86.5%	52.3%	[chart bars here]
SV-7 (perm)	85.9%	59.5%	[chart bars here]
2-4	85.4%	65.4%	[chart bars here]
RI-6 (perm)	85.3%	59.1%	[chart bars here]
7-6	85.2%	57.3%	[chart bars here]
6-5	84.8%	57.3%	[chart bars here]
WR-10 (perm)	84.1%	50.5%	[chart bars here]
S3-7	75.9%	40.3%	[chart bars here]
S2-12	74.9%	55.6%	[chart bars here]
DV-5 (perm)	74.7%	55.3%	[chart bars here]
DM-5 (perm)	74.4%	55.2%	[chart bars here]
5-1	70.4%	50.8%	[chart bars here]
CW-2 (perm)	62.9%	50.5%	[chart bars here]
S2-5	57.9%	37.9%	[chart bars here]
0-9	51.5%	33.5%	[chart bars here]
S5-1	49.7%	32.7%	[chart bars here]
S6-2	36.9%	32.6%	[chart bars here]
7-16	29.7%	20.1%	[chart bars here]

Sources: Rock Stages data are listed for reference; chart bars indicate relative drop shares by category.

---

Sugar Stages

Stage	Efficiency	Main Drop % [4]	Drops
---	---:	---:	---:
14-17	100.0%	59.5%	[chart bars here]
OF-F3 (perm)	96.9%	70.8%	[chart bars here]
MB-6 (perm)	96.6%	77.4%	[chart bars here]
12-14	96.1%	50.1%	[chart bars here]
DM-6 (perm)	96.0%	76.7%	[chart bars here]
2-5	95.3%	75.1%	[chart bars here]
15-14	95.2%	58.2%	[chart bars here]
10-10	94.9%	50.4%	[chart bars here]
13-17	94.1%	49.9%	[chart bars here]
11-6	93.3%	54.0%	[chart bars here]
M8-7	93.2%	53.8%	[chart bars here]
4-2	91.6%	57.0%	[chart bars here]
7-12	91.5%	52.9%	[chart bars here]
5-2	89.9%	46.2%	[chart bars here]
9-5	88.9%	56.7%	[chart bars here]
S3-1	79.7%	60.6%	[chart bars here]
6-3	77.5%	47.4%	[chart bars here]
2-2	73.8%	54.9%	[chart bars here]
S2-6	61.7%	38.9%	[chart bars here]
0-7	54.5%	36.3%	[chart bars here]
7-3	39.9%	35.5%	[chart bars here]
OF-F4 (perm)	36.7%	10.1%	[chart bars here]
SN-9 (perm)	36.4%	9.7%	[chart bars here]
5-6	33.2%	9.9%	[chart bars here]

---

Ester Stages

Stage	Efficiency	Main Drop % [5]	Drops
---	---:	---:	---:
7-4	100.0%	68.9%	[chart bars here]
14-20	96.4%	64.7%	[chart bars here]
WD-6 (perm)	94.9%	76.2%	[chart bars here]
12-18	93.5%	49.1%	[chart bars here]
5-3	92.9%	61.6%	[chart bars here]
2-6	92.8%	73.1%	[chart bars here]
14-9	91.8%	48.7%	[chart bars here]
13-12	91.5%	57.0%	[chart bars here]
16-4	90.8%	56.3%	[chart bars here]
15-6	90.7%	48.0%	[chart bars here]
6-4	88.5%	55.7%	[chart bars here]
3-8	88.1%	55.2%	[chart bars here]
9-7	87.9%	54.8%	[chart bars here]
WR-9 (perm)	84.2%	54.6%	[chart bars here]
BI-7 (perm)	83.2%	53.7%	[chart bars here]
S3-2	78.6%	59.6%	[chart bars here]
1-8	73.0%	54.1%	[chart bars here]
S3-1	79.7%	60.6%	[chart bars here]
S2-7	60.0%	40.4%	[chart bars here]
MN-3 (perm)	58.9%	40.4%	[chart bars here]
NL-5 (perm)	55.9%	35.3%	[chart bars here]
0-11	53.4%	35.3%	[chart bars here]
6-9	51.8%	34.8%	[chart bars here]
13-11	38.7%	7.8%	[chart bars here]
14-18	36.0%	7.8%	[chart bars here]
DH-9 (perm)	34.6%	9.5%	[chart bars here]
GT-5 (perm)	31.4%	7.1%	[chart bars here]
10-16	30.8%	20.9%	[chart bars here]
2-9	28.7%	5.1%	[chart bars here]
16-8	28.7%	7.9%	[chart bars here]

---

Oriron Stages

Stage	Efficiency	Main Drop % [6]	Drops
---	---:	---:	---:
10-11	100.0%	56.6%	[chart bars here]
11-11	97.4%	47.9%	[chart bars here]
14-12	97.3%	66.9%	[chart bars here]
15-12	96.8%	55.5%	[chart bars here]
S4-1	95.5%	54.1%	[chart bars here]
13-16	94.6%	47.6%	[chart bars here]
16-5	94.2%	47.5%	[chart bars here]
5-5	93.1%	44.3%	[chart bars here]
9-17	92.7%	44.3%	[chart bars here]
SN-8 (perm)	91.7%	47.2%	[chart bars here]
7-18	91.5%	50.5%	[chart bars here]
DM-8 (perm)	90.5%	53.7%	[chart bars here]
MB-8 (perm)	88.6%	52.9%	[chart bars here]
14-4	80.9%	50.9%	[chart bars here]
S3-3	77.1%	57.6%	[chart bars here]
2-8	74.7%	54.3%	[chart bars here]
6-10	73.8%	43.9%	[chart bars here]
2-1	71.2%	52.2%	[chart bars here]
S2-8	59.3%	36.8%	[chart bars here]
1-3	52.4%	34.3%	[chart bars here]
7-11	51.0%	34.0%	[chart bars here]
6-1	38.3%	34.0%	[chart bars here]

---

Keton Stages

Stage	Efficiency	Main Drop % [7]	Drops
---	---:	---:	---:
JT8-3	100.0%	70.0%	[chart bars here]
10-4	98.8%	73.8%	[chart bars here]
3-1	95.8%	76.6%	[chart bars here]
12-20	93.9%	56.8%	[chart bars here]
14-16	93.8%	57.1%	[chart bars here]
15-4	92.4%	49.6%	[chart bars here]
16-12	91.7%	49.6%	[chart bars here]
12-4	91.5%	48.3%	[chart bars here]
13-4	91.2%	48.5%	[chart bars here]
4-5	91.0%	56.3%	[chart bars here]
CW-8 (perm)	90.7%	48.9%	[chart bars here]
5-8	89.9%	56.3%	[chart bars here]
S9-1	88.4%	46.3%	[chart bars here]
TW-7 (perm)	84.1%	54.3%	[chart bars here]
10-9	82.0%	60.2%	[chart bars here]
3-7	78.0%	58.1%	[chart bars here]
6-8	76.6%	46.1%	[chart bars here]
7-14	75.5%	55.7%	[chart bars here]
S2-1	73.4%	54.4%	[chart bars here]
CW-3 (perm)	66.4%	53.9%	[chart bars here]
S2-9	60.6%	38.7%	[chart bars here]
BI-5 (perm)	55.6%	38.2%	[chart bars here]
MB-3 (perm)	55.5%	35.5%	[chart bars here]
1-6	53.7%	35.6%	[chart bars here]
6-2	38.4%	9.9%	[chart bars here]
R8-10	38.3%	9.8%	[chart bars here]
13-20	38.2%	8.3%	[chart bars here]
9-15	38.1%	9.5%	[chart bars here]
MN-8 (perm)	35.5%	9.8%	[chart bars here]
5-4	33.2%	9.7%	[chart bars here]

---

Device Stages

Stage	Efficiency	Main Drop % [8]	Drops
---	---:	---:	---:
9-10	100.0%	68.8%	[chart bars here]
11-7	99.2%	79.2%	[chart bars here]
7-15	98.5%	68.7%	[chart bars here]
M8-8	97.7%	78.6%	[chart bars here]
CW-6 (perm)	96.6%	74.2%	[chart bars here]
6-16	94.7%	56.5%	[chart bars here]
3-4	94.7%	75.8%	[chart bars here]
7-9	94.2%	49.0%	[chart bars here]
4-10	94.0%	59.8%	[chart bars here]
11-20	92.2%	49.0%	[chart bars here]
5-10	91.9%	56.4%	[chart bars here]
13-10	90.7%	58.8%	[chart bars here]
16-3	90.0%	48.2%	[chart bars here]
SV-9 (perm)	86.3%	45.1%	[chart bars here]
IW-6 (perm)	86.1%	56.0%	[chart bars here]
14-11	83.7%	52.3%	[chart bars here]
TW-5 (perm)	78.8%	60.1%	[chart bars here]
S3-4	78.2%	59.3%	[chart bars here]
1-12	72.9%	53.9%	[chart bars here]
2-3	59.7%	39.9%	[chart bars here]
1-5	53.6%	35.5%	[chart bars here]
9-3	53.4%	49.1%	[chart bars here]
M8-6	51.9%	34.9%	[chart bars here]
6-11	42.2%	33.6%	[chart bars here]
10-7	39.2%	9.9%	[chart bars here]
4-7	38.7%	10.9%	[chart bars here]
14-14	38.1%	9.9%	[chart bars here]
15-11	34.4%	10.0%	[chart bars here]
3-2	31.3%	7.1%	[chart bars here]

---

Kohl Stages

Notes: [NO STAGES FOR KOHL] Blue - main drop (T3 and below); Yellow - other drops; Red - sanity lost (inefficiency)

Stage	Efficiency	Drops
---	---:	---:
(NO STAGES FOR KOHL)

---

Manganese Stages

Notes: [NO STAGES FOR MANGANESE] Blue - main drop (T3 and below); Yellow - other drops; Red - sanity lost (inefficiency)

Stage	Efficiency	Drops
---	---:	---:
(NO STAGES FOR MANGANESE)

---

Grindstone Stages

Stage	Efficiency	Main Drop % [13]	Drops
---	---:	---:	---:
10-12	100.0%	68.1%	[chart bars here]
4-8	99.9%	50.6%	[chart bars here]
7-17	97.8%	48.1%	[chart bars here]
12-8	96.6%	48.0%	[chart bars here]
14-5	96.4%	48.0%	[chart bars here]
15-15	96.1%	67.0%	[chart bars here]
16-11	95.2%	47.7%	[chart bars here]
LE-6 (perm)	94.6%	48.0%	[chart bars here]
13-21	94.5%	49.4%	[chart bars here]
3-3	93.4%	67.5%	[chart bars here]
GT-6 (perm)	93.4%	67.0%	[chart bars here]
9-16	92.9%	70.2%	[chart bars here]
5-7	91.3%	52.4%	[chart bars here]
BI-8 (perm)	89.2%	44.8%	[chart bars here]
TW-8 (perm)	88.7%	43.6%	[chart bars here]
6-14	75.0%	44.7%	[chart bars here]

---

RMA Stages

Stage	Efficiency	Main Drop % [14]	Drops
---	---:	---:	---:
4-9	100.0%	50.9%	[chart bars here]
9-19	98.9%	70.3%	[chart bars here]
16-6	98.3%	67.7%	[chart bars here]
7-10	98.0%	69.5%	[chart bars here]
10-5	97.8%	50.6%	[chart bars here]
15-13	97.7%	50.7%	[chart bars here]
R8-9	97.5%	69.3%	[chart bars here]
11-5	97.4%	50.5%	[chart bars here]
12-7	96.8%	48.2%	[chart bars here]
RI-8 (perm)	96.3%	69.7%	[chart bars here]
WD-8 (perm)	95.2%	67.8%	[chart bars here]
2-10	94.5%	68.3%	[chart bars here]
IW-8 (perm)	93.6%	47.9%	[chart bars here]
6-15	91.9%	45.6%	[chart bars here]
5-9	75.0%	44.7%	[chart bars here]

---

Gel Stages

Stage	Efficiency	Main Drop % [15]	Drops
---	---:	---:	---:
10-3	100.0%	48.6%	[chart bars here]
11-12	99.7%	48.7%	[chart bars here]
JT8-2	99.3%	48.6%	[chart bars here]
14-8	97.7%	70.8%	[chart bars here]
16-13	97.6%	48.5%	[chart bars here]
12-5	97.5%	51.0%	[chart bars here]
7-8	96.0%	45.3%	[chart bars here]
S5-7	94.8%	45.2%	[chart bars here]
GA-8 (perm)	92.0%	51.3%	[chart bars here]
R8-8	89.9%	51.0%	[chart bars here]
MN-6 (perm)	84.4%	44.1%	[chart bars here]
S4-10	75.1%	46.5%	[chart bars here]

---

Alloy Stages

Stage	Efficiency	Main Drop % [16]	Drops
---	---:	---:	---:
11-14	100.0%	50.5%	[chart bars here]
13-18	99.5%	51.3%	[chart bars here]
10-14	98.1%	47.9%	[chart bars here]
13-6	97.2%	47.8%	[chart bars here]
16-14	96.5%	67.3%	[chart bars here]
6-12	95.9%	46.4%	[chart bars here]
12-12	95.6%	47.4%	[chart bars here]
R8-7	95.1%	46.1%	[chart bars here]
S5-8	94.2%	44.7%	[chart bars here]
11-2	93.8%	55.7%	[chart bars here]
TW-6 (perm)	93.6%	67.4%	[chart bars here]
9-12	93.2%	44.5%	[chart bars here]
S3-6	93.0%	67.1%	[chart bars here]
DV-8 (perm)	92.9%	47.5%	[chart bars here]
CW-10 (perm)	92.4%	48.1%	[chart bars here]
BI-6 (perm)	91.4%	65.3%	[chart bars here]

---

Crystal Stages

Stage	Efficiency	Main Drop % [17]	Drops
---	---:	---:	---:
R8-11	100.0%	54.0%	[chart bars here]
12-19	90.8%	38.2%	[chart bars here]
16-17	87.4%	66.3%	[chart bars here]
12-3	86.2%	39.1%	[chart bars here]
9-14	84.0%	53.9%	[chart bars here]
14-3	83.2%	39.0%	[chart bars here]
15-10	82.6%	38.6%	[chart bars here]
13-7	82.4%	38.5%	[chart bars here]
S5-9	82.0%	35.8%	[chart bars here]
SV-8 (perm)	79.5%	35.0%	[chart bars here]

---

Solvent Stages

Stage	Efficiency	Main Drop % [18]	Drops
---	---:	---:	---:
9-18	100.0%	48.3%	[chart bars here]
13-14	98.9%	48.3%	[chart bars here]
12-10	97.8%	50.2%	[chart bars here]
9-4	95.5%	46.8%	[chart bars here]
15-5	95.3%	49.7%	[chart bars here]
11-8	95.2%	48.0%	[chart bars here]

---

Fluid Stages

Stage	Efficiency	Main Drop % [19]	Drops
---	---:	---:	---:
12-17	100.0%	53.3%	[chart bars here]
11-16	86.7%	38.6%	[chart bars here]
15-7	84.6%	37.4%	[chart bars here]
10-17	83.3%	53.1%	[chart bars here]
14-21	83.1%	37.3%	[chart bars here]
14-15	83.0%	52.8%	[chart bars here]
16-7	81.7%	37.2%	[chart bars here]
9-6	81.1%	35.7%	[chart bars here]

---

Salt Stages

Stage	Efficiency	Main Drop % [20]	Drops
---	---:	---:	---:
12-13	100.0%	46.6%	[chart bars here]
11-15	97.6%	46.6%	[chart bars here]
11-3	96.9%	49.5%	[chart bars here]
14-2	95.6%	66.6%	[chart bars here]
13-13	92.4%	46.0%	[chart bars here]
16-10	90.0%	45.5%	[chart bars here]
S9-2	73.0%	43.1%	[chart bars here]

---

Fiber Stages

Stage	Efficiency	Main Drop % [21]	Drops
---	---:	---:	---:
13-5	100.0%	52.6%	[chart bars here]
15-18	99.3%	49.9%	[chart bars here]
S9-3	76.5%	45.7%	[chart bars here]

---

Cyclicene Stages

Stage	Efficiency	Main Drop % [22]	Drops
---	---:	---:	---:
15-20	100.0%	51.9%	[chart bars here]
13-15	99.8%	49.2%	[chart bars here]
16-15	99.2%	50.3%	[chart bars here]
14-19	99.1%	49.9%	[chart bars here]
S9-4	75.2%	46.6%	[chart bars here]

---

Nodule Stages

Stage	Efficiency	Main Drop % [23]	Drops
---	---:	---:	---:
15-9	100.0%	49.2%	[chart bars here]
-	Yellow - other drops

---

Byproduct Rates, Data Sources & Date Changes

Byproduct rates for Workshop recipe calculations:
Elite mats: +100% (Arene)
Skill summaries: +75% (Crownslayer)
Chips: +70% (Cutter)
Data sources:
Penguin Statistics - drop rate data
Kengxxiao/ArknightsGameData - Workshop recipe data and operator data for demand vector/objective function
Date Change(s):
2025-09-04 Added bullet points to individual item tabs to distinguish them in preview/htmlview mode.
2025-09-06 Replaced "Sanity Cost" column with bar chart showing drops composition.
2025-09-13 Added data for LMD drops in stages that drop more LMD than usual, such as S4-6. Penguin Statistics doesn't track LMD drops, so this is done manually.
2025-09-17 Renamed "New CN Thing" to "Nodule", and added EN names for new items in DATA tab.
2025-09-29 Added clarifying note about "Main Drop %" columns.
2025-10-07 Fixed value of Mnanganese Ore based on unlimited event shop offers (30 event currency each).
2025-10-16 Added Chapter 16 stages.
Tweaked "main drop" algorithm. Only affects some low-efficiency stages like SK-5.

---

Video overview of calculation methods

How Farming Math Works in Arknights (Video overview)
Spreadsheet by PeterYR: PeterYR, u/PeterYR, peteryr
Date and changelog details are included in the sections above.

---

Footnotes & Extra Data (Source Annotations)

[1] Not efficient to farm. Buy from event shops instead.

[2] Not efficient to farm. Buy from event shops instead.

[3] Sanity contribution from main drops. NOT drop rate of the main item.

[4] Sanity contribution from main drops. NOT drop rate of the main item.

[5] Sanity contribution from main drops. NOT drop rate of the main item.

[6] Sanity contribution from main drops. NOT drop rate of the main item.

[7] Sanity contribution from main drops. NOT drop rate of the main item.

[8] Sanity contribution from main drops. NOT drop rate of the main item.

[9] Not efficient to farm. Buy from event shops instead.

[10] Sanity contribution from main drops. NOT drop rate of the main item.

[11] Not efficient to farm. Buy from event shops instead.

[12] Sanity contribution from main drops. NOT drop rate of the main item.

[13] Sanity contribution from main drops. NOT drop rate of the main item.

[14] Sanity contribution from main drops. NOT drop rate of the main item.

[15] Sanity contribution from main drops. NOT drop rate of the main item.

[16] Sanity contribution from main drops. NOT drop rate of the main item.

[17] Sanity contribution from main drops. NOT drop rate of the main item.

[18] Sanity contribution from main drops. NOT drop rate of the main item.

[19] Sanity contribution from main drops. NOT drop rate of the main item.

[20] Sanity contribution from main drops. NOT drop rate of the main item.

[21] Sanity contribution from main drops. NOT drop rate of the main item.

[22] Sanity contribution from main drops. NOT drop rate of the main item.

[23] Sanity contribution from main drops. NOT drop rate of the main item.

---

All data, numbers, and notes above are generated by PeterYR and are provided for reference and educational purposes. The original spreadsheet data come from a combination of community-contributed sources and official data references. For more details, refer to the notes in the About section and changelog above.