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How research works#
- Only one research runs at a time. Each topic has several levels; every level adds the bonus shown.
- Higher Library levels open more advanced topics, and some topics need others first.
- Advanced topics also need papyrus, which you get from Pharaoh camp wins (2 each), Warlord wins (2 each) and the Season Pass.
- Research can be finished early with rubies.
| Library level | Player level | Cost | Time | Opens research |
|---|---|---|---|---|
| 1 | 15 | 6,000 wood, 5,400 stone | 30m | Forestry, Masonry, Irrigation of the Nile, Sword Drills, Archery |
| 2 | 20 | 9,300 wood, 8,400 stone | 51m | |
| 3 | 25 | 14,400 wood, 13,000 stone | 1h 26m | Granaries, Army Rations, Street Fighting, Desert Roads, Shield Wall, Arrow Slits |
| 4 | 30 | 22,300 wood, 20,100 stone | 2h 27m | |
| 5 | 35 | 34,600 wood, 31,100 stone | 4h 10m | Courtyard Guard, Stone Walls, Recruiting Officers, Plunder Masters |
| 6 | 40 | 53,700 wood, 48,300 stone | 7h 5m | |
| 7 | 50 | 83,200 wood, 74,900 stone | 12h 4m | Great Harvest, Elite Tactics, Crowded Ramparts, Hidden Vaults |
| 8 | 60 | 129,000 wood, 116,100 stone | 20h 31m | |
| 9 | 70 | 199,900 wood, 179,900 stone | 1d 10h | |
| 10 | 80 | 309,800 wood, 278,800 stone | 2d 11h | Genius of Alexandria, Art of War, Unbreakable Keep, Pharaoh's Decree |
Economy#
| Research | Tier | Library level | Levels | Per level | At max level | Needs |
|---|---|---|---|---|---|---|
| Forestry | 1 | 1 | 5 | +1% Wood production | +5% Wood production | |
| Masonry | 1 | 1 | 5 | +1% Stone production | +5% Stone production | |
| Irrigation of the Nile | 1 | 1 | 5 | +1% Food production | +5% Food production | |
| Granaries | 2 | 3 | 5 | +2% Storage capacity | +10% Storage capacity | Forestry |
| Army Rations | 2 | 3 | 5 | +1% Less food eaten by troops | +5% Less food eaten by troops | Irrigation of the Nile |
| Great Harvest | 3 | 7 | 5 | +2% Wood production, +2% Stone production, +2% Food production | +10% Wood production, +10% Stone production, +10% Food production | Granaries, Masonry |
| Genius of Alexandria | 4 | 10 | 1 | +5% Wood production, +5% Stone production, +5% Food production | +5% Wood production, +5% Stone production, +5% Food production | Great Harvest |
Military#
| Research | Tier | Library level | Levels | Per level | At max level | Needs |
|---|---|---|---|---|---|---|
| Sword Drills | 1 | 1 | 5 | +1% Melee attack | +5% Melee attack | |
| Archery | 1 | 1 | 5 | +1% Ranged attack | +5% Ranged attack | |
| Street Fighting | 2 | 3 | 5 | +1% Courtyard attack | +5% Courtyard attack | Sword Drills |
| Desert Roads | 2 | 3 | 5 | +2% Travel speed | +10% Travel speed | Archery |
| Elite Tactics | 3 | 7 | 5 | +2% Melee attack, +2% Ranged attack | +10% Melee attack, +10% Ranged attack | Street Fighting, Desert Roads |
| Art of War | 4 | 10 | 1 | +5% Melee attack, +5% Ranged attack | +5% Melee attack, +5% Ranged attack | Elite Tactics |
Defense#
| Research | Tier | Library level | Levels | Per level | At max level | Needs |
|---|---|---|---|---|---|---|
| Shield Wall | 1 | 3 | 5 | +1% Melee defense | +5% Melee defense | |
| Arrow Slits | 1 | 3 | 5 | +1% Ranged defense | +5% Ranged defense | |
| Courtyard Guard | 2 | 5 | 5 | +1% Courtyard defense | +5% Courtyard defense | Shield Wall |
| Stone Walls | 2 | 5 | 5 | +2% Wall protection | +10% Wall protection | Arrow Slits |
| Crowded Ramparts | 3 | 7 | 5 | +1% Soldiers on the wall, +2% Gate protection | +5% Soldiers on the wall, +10% Gate protection | Courtyard Guard, Stone Walls |
| Unbreakable Keep | 4 | 10 | 1 | +5% Melee defense, +5% Ranged defense | +5% Melee defense, +5% Ranged defense | Crowded Ramparts |
Empire#
| Research | Tier | Library level | Levels | Per level | At max level | Needs |
|---|---|---|---|---|---|---|
| Recruiting Officers | 1 | 5 | 5 | +2% Recruitment speed | +10% Recruitment speed | |
| Plunder Masters | 1 | 5 | 5 | +2% More loot | +10% More loot | |
| Hidden Vaults | 3 | 7 | 5 | +2% Less resources looted | +10% Less resources looted | Plunder Masters |
| Pharaoh's Decree | 4 | 10 | 1 | +5% Recruitment speed, +5% Storage capacity | +5% Recruitment speed, +5% Storage capacity | Recruiting Officers, Hidden Vaults |
Research costs and times#
Cost and time depend only on the tier of the topic and the level you are researching.
| Tier | To level | Wood | Stone | Gold | Papyrus | Time |
|---|---|---|---|---|---|---|
| 1 | 1 | 20,000 | 20,000 | 8,000 | - | 1d |
| 1 | 2 | 40,000 | 40,000 | 16,000 | - | 1d 10h |
| 1 | 3 | 60,000 | 60,000 | 24,000 | - | 1d 19h |
| 1 | 4 | 80,000 | 80,000 | 32,000 | - | 2d 5h |
| 1 | 5 | 100,000 | 100,000 | 40,000 | - | 2d 14h |
| 2 | 1 | 60,000 | 60,000 | 24,000 | - | 3d |
| 2 | 2 | 120,000 | 120,000 | 48,000 | - | 3d 10h |
| 2 | 3 | 180,000 | 180,000 | 72,000 | - | 3d 19h |
| 2 | 4 | 240,000 | 240,000 | 96,000 | - | 4d 5h |
| 2 | 5 | 300,000 | 300,000 | 120,000 | - | 4d 14h |
| 3 | 1 | 150,000 | 150,000 | 60,000 | 40 | 5d |
| 3 | 2 | 300,000 | 300,000 | 120,000 | 80 | 5d 10h |
| 3 | 3 | 450,000 | 450,000 | 180,000 | 120 | 5d 19h |
| 3 | 4 | 600,000 | 600,000 | 240,000 | 160 | 6d 5h |
| 3 | 5 | 750,000 | 750,000 | 300,000 | 200 | 6d 14h |
| 4 | 1 | 600,000 | 600,000 | 240,000 | 600 | 7d |