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Research · Military
Drilling
Raises troop training speed and capacity.
- Entity ID
drilling- Branch
- Military
- Stat buffed
train_speed— Train speed- Bonus per level
- +2.5%
- Maximum level
- 20
- Bonus at maximum level
- +50%
- Power per level
- 80
- Power at maximum level
- 1,600
- Base study time
- 150 seconds
- Study time at maximum level
- 23h 21m
- Prerequisites
- Armor at level 5
Cost, time and bonus at every level
Drilling runs to level 20, adding +2.5% to train_speed and 80 power each time. Studying it out costs the four soft resources — the same amount of each — and takes 23h 21m for the final level alone. Gems are only ever the optional instant finish; the study itself is bought with what your fields already make.
| Level | Total train speed | Power | Study time | Each resource | Gems to finish instantly |
|---|---|---|---|---|---|
| 1 | +2.5% | 80 | 9m 35s | 12,000 | 10 |
| 2 | +5% | 160 | 12m 28s | 15,600 | 13 |
| 3 | +7.5% | 240 | 16m 12s | 20,280 | 17 |
| 4 | +10% | 320 | 21m 3s | 26,364 | 22 |
| 5 | +12.5% | 400 | 27m 22s | 34,273 | 28 |
| 10 | +25% | 800 | 1h 41m | 127,254 | 102 |
| 15 | +37.5% | 1,200 | 6h 17m | 472,485 | 378 |
| 20 | +50% | 1,600 | 23h 21m | 1,754,304 | 1,402 |
Taken from nothing to level 20 that is 4d 4h of raw study and 7,561,985 of each of food, wood, stone and iron — 30,247,940 resources in total. Levels above 10 additionally consume an advanced forging material, one more unit per level past the threshold, so the last 10 levels also need the forge working.
Where it sits in the tree
Drilling belongs to the Military branch — the offence line — what your swords, horses and bows hit for. It stays locked until Armor reaches level 5. Studying it opens 4 further techs.
| Tech | Branch | Requires this tech at level |
|---|---|---|
| Infantry Discipline | Military | 5 |
| Horsemanship | Military | 5 |
| Muster Rolls | Military | 8 |
| Statecraft | Dominion | 5 |
The road here: Weaponry to level 3 → Armor to level 5 → Drilling. That is 2 studies standing between a fresh Academy and this one.
| Prerequisite | Level required | Each resource | Study time |
|---|---|---|---|
| Weaponry | 3 | 47,880 | 40m 47s |
| Armor | 5 | 108,517 | 1h 32m |
| Total before you may begin | — | 156,397 | 2h 13m |
What it eventually opens: 29 studies sit downstream of Drilling, counting every remove.
| Study | Steps out | Buffs | At its cap | Study time at cap |
|---|---|---|---|---|
| Horsemanship | 1 | march_speed | +14.4% | 34m 21s |
| Infantry Discipline | 1 | defense | +12% | 20m 20s |
| Muster Rolls | 1 | train_speed | +14.4% | 34m 21s |
| Statecraft | 1 | march_speed | +40% | 1d 4h |
| Battle Drums | 2 | train_speed | +12% | 23m 43s |
| Cavalry Tactics | 2 | attack | +12% | 20m 20s |
| Diplomacy | 2 | gather_yield | +14.4% | 34m 21s |
| Quartermastery | 2 | train_speed | +12% | 20m 20s |
| Roadworks | 2 | march_speed | +14.4% | 34m 21s |
| Taxation | 2 | production_rate | +14.4% | 34m 21s |
| The Unbroken Line | 2 | defense | +7.2% | 13m 3s |
| Warhorses | 2 | march_speed | +12% | 23m 43s |
| Baggage Trains | 3 | march_size | +12% | 23m 43s |
| Cartography | 3 | march_speed | +12% | 23m 43s |
| Court Administration | 3 | production_rate | +12% | 23m 43s |
| Heraldry | 3 | gather_yield | +12% | 23m 43s |
| Post Riders | 3 | march_speed | +12% | 23m 43s |
| The Standing Army | 3 | train_speed | +7.2% | 13m 46s |
| The Long Memory | 3 | production_rate | +6% | 10m 57s |
| Toll Roads | 3 | production_rate | +12% | 23m 43s |
| Trade Charters | 3 | production_rate | +12% | 23m 43s |
| Banking | 4 | gather_yield | +12% | 23m 43s |
| Census Rolls | 4 | production_rate | +9.6% | 14m 2s |
| Crown Charters | 4 | gather_yield | +7.2% | 13m 46s |
| The Great Council | 4 | production_rate | +7.2% | 13m 3s |
| Scouting Networks | 4 | march_speed | +9.6% | 14m 2s |
| Supply Columns | 4 | march_size | +9.6% | 14m 2s |
| The Ravenries | 4 | march_speed | +7.2% | 13m 3s |
| Royal Writs | 5 | gather_yield | +12% | 23m 43s |
Related
Guide: Research & the Academy · Research Priorities. Studied at the Maester's Academy. Index: all 81 studies · the whole database.
Rest of the Military branch: Weaponry · Armor · Swordsmanship · Archery · Marksmanship · Spearwork · Blacksmithing · Forged Steel · Shieldwork · Infantry Discipline · Tempering · Ironclad Mail · Horsemanship · Cavalry Tactics · Warhorses · Muster Rolls · Quartermastery · Battle Drums · Baggage Trains · Supply Columns · Pattern Welding · The Unbroken Line · The Standing Army
Every figure above is generated from the shipped game code — the same constants and formulas the running game uses — and regenerated whenever the balance changes. Nothing on this page is hand-typed.