Era4X/research
< Era4X
Research list in Era4X
| Tier 1 | ||||
|---|---|---|---|---|
| Name | Description | Time(In turns) | Requirements | Unlocks |
| Corvette Development | Enables construction of universal corvettes | 60 | None | Another corvette upgrades Frigate Development Warp Research Size 1 Equipment Development Resource Surveyor Module Infantry Equipment |
| Corvette Upsizing 1 | Enables construction of larger universal corvettes. All slots increased by +1 |
40 | None | Corvette Upsizing 2 |
| Corvette Upsizing 2 | Enables construction of even larger universal corvettes. All slots increased by +1 |
40 | Corvette Upsizing 2 | Corvette Refinement 2 |
| Corvette Refinement 1 | Improve the universal corvette. All slots increased by +1. |
40 | Corvette Refinement 2 | Corvette Refinement 1 |
| Corvette Refinement 2 | Improve the universal corvette to the limit. Improves space force capacity of the universal corvette. |
40 | Corvette Refinement 1 | None |
| Warp Research | Enables personal interstellar warping.「Warp」will be available from spaceports.
|
120 | Corvette Development | None |
| Size 1 Equipment Development | Enables production of Size 1 equipment. | 120 | Corvette Development | None |
| Resource Surveyor Module | Develop a module to search for hidden resources in the sector. | 200 | Resource Surveyor Module | None |
| Infantry Equipment | Enables production of infantry equipment to fulfill army needs. | 100 | Corvette Development | None |
| Tier 2 | ||||
| Name | Description | Time(In turns) | Requirements | Unlocks |
| Frigate Development | Enables construction of universal frigates. | 100 | Corvette Development | Frigate Upsizing 1 Destroyer Development Medium SP Module Development |
| Frigate Upsizing 1 | Enables construction of larger universal frigates. All slots increased by +1. |
80 | Frigate Development | Frigate Upsizing 2 |
| Frigate Upsizing 2 | Enables construction of even larger universal frigates. All slots increased by +1. |
80 | Frigate Upsizing 1 | Frigate Refinement 1 |
| Frigate Refinement 1 | Improve the universal frigate. All slots increased by +1. |
80 | Frigate Upsizing 2 | Frigate Refinement 2 |
| Frigate Refinement 2 | Improve the universal frigate to the limit. Improves space force capacity of the universal frigate. |
80 | Frigate Refinement 1 | None |
| Medium SP Module Development | Enables development of medium-sized spaceport modules. Spaceport slots increased by +4. |
300 | Frigate Development | None |
| Tier 3 | ||||
| Name | Description | Time(In turns) | Requirements | Unlocks |
| Destroyer Development | Enables construction of universal destroyers. | 150 | Frigate Development | Destroyer Upsizing 1 Cruiser Development Size 2 Equipment Development |
| Destroyer Upsizing 1 | Enables construction of larger universal destroyers. All slots increased by +1. |
120 | Destroyer Development | Destroyer Upsizing 2 |
| Destroyer Upsizing 2 | Enables construction of even larger universal destroyers. All slots increased by +1. |
120 | Destroyer Upsizing 1 | Destroyer Refinement 1 |
| Destroyer Refinement 1 | Improve the universal destroyer. All slots increased by +1. |
120 | Destroyer Upsizing 2 | Destroyer Refinement 2 |
| Destroyer Refinement 2 | Improve the universal destroyer to the limit. Improves space force capacity of the universal destroyer. |
120 | Destroyer Refinement 1 | None |
| Size 2 Equipment Development | Enables production of Size 2 equipment. | 240 | Destroyer Development | None |
| Tier 4 | ||||
| Name | Description | Time(In turns) | Requirements | Unlocks |
| Cruiser Development | Enables construction of universal cruisers. | 220 | Destroyer Development | Cruiser Upsizing 1 Battleship Development Size 3 Equipment Development Large SP Module Development |
| Destroyer Development | Enables construction of larger universal cruisers. All slots increased by +1. |
160 | Cruiser Development | Cruiser Upsizing 2 |
| Cruiser Upsizing 2 | Enables construction of even larger universal corvettes. All slots increased by +1. |
160 | Cruiser Upsizing 1 | Cruiser Refinement 1 |
| Cruiser Refinement 1 | Improve the universal cruiser. All slots increased by +1. |
160 | Cruiser Upsizing 2 | Cruiser Refinement 2 |
| Cruiser Refinement 2 | Improve the universal cruiser to the limit. Improves space force capacity of the universal cruiser. |
160 | Cruiser Refinement 1 | None |
| Size 3 Equipment Development | Enables production of Size 3 equipment. | 360 | Cruiser Development | None |
| Large SP Module Development | Enables construction of large spaceport modules. Spaceport slots increased by +4. |
400 | Cruiser Development | None |
| Tier 5 | ||||
| Name | Description | Time(In turns) | Requirements | Unlocks |
| Battleship Development | Enables construction of universal battleships. | 300 | Cruiser Development | Battleship Upsizing 1 Carrier Development Size 4 Equipment Development Ultra L. SP Module Development |
| Battleship Upsizing 1 | Enables construction of larger universal battleships. All slots increased by +1. |
200 | Battleship Development | Battleship Upsizing 2 |
| Battleship Upsizing 2 | Enables construction of even larger universal battleships. All slots increased by +1. |
200 | Battleship Upsizing 1 | Battleship Refinement 1 |
| Battleship Refinement 1 | Improve the universal battleship. All slots increased by +1. |
200 | Battleship Upsizing 2 | Battleship Refinement 2 |
| Battleship Refinement 2 | Improve the universal battleship to the limit. Improves space force capacity of the universal battleship. |
200 | Battleship Refinement 1 | None |
| Size 4 Equipment Development | Enables production of Size 4 equipment. | 480 | Battleship Development | None |
| Ultra L. SP Module Development | Enables construction of ultra large spaceport modules. Spaceport slots increased by +4. |
400 | Battleship Development | None |
| Tier 6 | ||||
| Name | Description | Time(In turns) | Requirements | Unlocks |
| Carrier Development | Enables construction of universal carriers. | 400 | Battleship Development | Carrier Upsizing 1 Size 5 Equipment Development |
| Carrier Upsizing 1 | Enables construction of larger universal carriers. All slots increased by +1. |
300 | Carrier Development | Carrier Upsizing 2 |
| Carrier Upsizing 2 | Enables construction of even larger universal carriers. All slots increased by +1. |
300 | Carrier Upsizing 1 | Carrier Refinement 1 |
| Carrier Refinement 1 | Improve the universal carrier. All slots increased by +1. |
300 | Carrier Upsizing 2 | Carrier Refinement 2 |
| Carrier Refinement 2 | Improve the universal carrier to the limit. Improves space force capacity of the universal carrier. |
300 | Carrier Refinement 1 | None |
| Tier 7 | ||||
| Name | Description | Time(In turns) | Requirements | Unlocks |
| Size 5 Equipment Development | Enables production of Size 5 equipment. | 600 | Carrier Development | Megastructure Development |
| Megastructure Development | Enables construction of megastructures. | 800 | Size 5 Equipment Development | Terraforming |
| Terraforming | Enables terraforming. | 1000 | Megastructure Development | None |
| Spaceport Warp | Enables Spaceport warping. | 0 | Size 5 Equipment Development Warp Research |
None |
