To progress in Expeditions: Rome, Outpost Management upgrades are essential. This behind-the-scenes work makes each battle much simpler. Upgrades result in new assignments and buffs for the players, legion, and Praetorian guard.
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To access Upgrades, go into Outpost Management and go to the Upgrades tab. Below is a list of all the upgrades.
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Level 1 Upgrades
| Name | Description | Cost |
| Dispensary | Leave injured Praetorians here to treat them for free. Critical injuries can only be treated in the dispensary. | Available by default |
| Market | Trade resources for other resources. | Available by default |
| Barracks | Leave a Praetorian here to refresh the available recruits. Available recruits will be between levels 1 and 6. | Available by default |
| Specular Tent | Upgrades player's tent. Leave a Praetorian here to replenish your tactical items. | 1 Tannery and 1 Lumber Mill |
| Armoury | Leave a Praetorian here to craft Praetorian items of tier 1. | 1 Tannery and 1 Iron Mine |
| Bath | Leave a Praetorian here to boost their Approval up to appalled if it has dropped below that level. | 1 Farm |
| Palisades | Increase the Legion's strength by 5% when the outpost is attacked. | 1 Lumber Mill |
| Workshop | Leave a Praetorian here to unlock a new level 1 battle strategem or craft one-use strategem. | 1 Iron Mine and 1 Lumber Mill |
| Stockpile | Increases the legion's strength by 5% when conquering new regions. | 1 Farm |
Level 2 Upgrades
| Name | Description | Cost |
| Depot | Upgrades Stockpile to Depot. Increases the legion's strength by 10% when conquering new regions. | 1 Farm and 1 Tannery |
| Infirmary | Upgrades Dispensary to Infirmary. Decreases treatment time of injured Praetorians. | 1 Farm and 2 Tanneries |
| Garrison | Upgrades Barracks to Garrison. Available recruits will be between levels 7 and 12. | 1 Farm, 1 Iron Mine, and 1 Lumber Mill |
| Emporium | Upgrades Market to Emporium. Increases the variety of wares and gives better exchange rates. | 2 Farms and 1 Tannery |
| Batlneum | Upgrades Bath to Batlneum. Approval can now be brought up to Disgruntled. | 1 Farm and 1 Iron Mine |
| Legatus Tent | Upgrades Specular Tent to Legatus Tent. Increases the number of tactical item refreshes per assignment. | 1 Tannery and 2 Lumber Mills |
| Walls | Upgrades Palisades to Walls. Increases the legion's strength by 10% when the outpost is attacked. | 1 Iron Mine and 1 Lumber Mill |
| Factory | Upgrades Workshop to Factory. Unlocks Level 2 battle strategem upgrades. | 1 Iron mine, 1 Lumber mill, and 1 Tannery |
| Forge | Upgrades Armoury to Forge. Unlocks tier 2 items. | 1 Farm and 2 Iron Mines |
Level 3 Upgrades
| Name | Description | Cost |
| Imperator Tent | Upgrades Legatus Tent to Imperator Tent. Increases the number of tactical item refreshes per assignment. | 1 Farm, 1 Tannery, and 2 Lumber Mills |
| Stone Walls | Upgrades Walls to Stone Walls. Increases the legion's strength by 15% when the outpost is attacked. | 1 Iron Mine and 2 Lumber Mills |
| Hospital | Upgrades Infirmary to Hospital. Decreases treatment time of injured Praetorians. | 2 Farms and 2 Tanneries |
| Arsenal | Upgrades Factory to Arsenal. Unlocks Level 3 battle strategem upgrades. | 1 Iron Mine, 1 Tannery, and 2 Lumber mills |
| Storehouse | Upgrades Depot to Storehouse. Increases the legion's strength by 15% when conquering new regions. | 2 Farms and 1 Iron Mine |
| Commercium | Upgrades Emporium to Commercium. Increases the variety of wares and gives better exchange rates. | 2 Farms, 1 Iron Mine, and 1 Tannery |
| Praetorium | Upgrades Garrison to Praetorium. Available recruits will be between levels 13 and 18. | 2 Farms, 1 Lumber Mill, and 1 Tannery |
| Lavacrum | Upgrades Batlneum to Lavacrum. Approval can now be brought up to Hesitant | 1 Farm, 1 Tannery, and 1 Lumber Mill |
| Foundry | Upgrades Forge to Foundry. Unlocks tier 3 items. | 1 Farm, 2 Iron Mines, and 1 Lumber Mill |
It's not too late to change the difficulty if it's too hard. Read What difficulty should I choose? Difficulty Levels in Expeditions: Rome for more on difficulty levels! For more info, guides, and news on Expedition: Rome, stay here on Pro Game Guides!
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All outpost upgrades in Expeditions: Rome
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