Epoch of Fusion Seed — LV35 Buildings & 4th Battle Queue

I. Unlocking the Epoch of Fusion Seed Tech Tree

Starting from Week 27 after server launch, once the progress of Combat Craft Modification technology tree reaches 60%, the Epoch of Fusion Seed technology tree will become available at the Research Center.

Researching Epoch of Fusion Seed technologies unlocks the Fusion Seed Refinery, improves the production efficiency of Fusion Seeds, and increases the number of Fusion Reactors available for construction. After completing the final technology in the tree, the Energy Core level cap will increase to Lvl 35. Upgrading the Energy Core to Level 33 will also unlock a fourth Battle Queue, allowing traders to command four fleets at the same time.

II. New Resource & Building

Once the Epoch of Fusion Seed is unlocked, a new resource "Fusion Seed" and a new building "Fusion Seed Refinery" will become available.

Fusion Seed

Fusion Seed is a key resource used to research Epoch of Fusion Seed technologies and upgrade buildings from Lvl 31 to Lvl 35. As research progresses and buildings are upgraded, the demand for Fusion Seeds will continue to rise. We recommend starting to stockpile Fusion Seeds as soon as the relevant content becomes available and gradually improving your production efficiency.

Uses:

Research Epoch of Fusion Seed technologies

Upgrade Lvl 31–35 buildings, including the Energy Core.

Sources:

Fusion Seed Refinery

Trader Commissions

Ruins Excavation

Related packs

Fusion Seed Refinery

After researching the corresponding Epoch of Fusion Seed technology, you can unlock and construct the Fusion Seed Refinery. Fusion Seed Refinery continuously produces Fusion Seed through its internal Fusion Reactors, supplying the resources needed for later technology research and building upgrades.

Fusion Reactor

The production of Fusion Seeds depends on both the number and level of Fusion Reactors.

The Fusion Seed Refinery starts with 1 Fusion Reactor. You can improve the production of Fusion Seeds through the following methods:

Research related technologies: +2 Fusion Reactors

Upgrade the Fusion Seed Refinery: +3 Fusion Reactors

You can have up to 6 Fusion Reactors. Fusion Reactors can also be upgraded. Higher-level reactors produce more Fusion Seeds.

Development Tips

Once the Fusion Seed Refinery is unlocked, we recommend constructing it as soon as possible so you can start stockpiling Fusion Seeds. While researching technologies that increase reactor capacity and upgrading the Refinery itself, remember to keep upgrading your existing Fusion Reactors as well. Increasing both their number and level will steadily improve the production of Fusion Seeds.

III. Unlocking the Lvl 35 Building Level Cap

After completing Fusion Power Systems, the final technology in the Epoch of Fusion Seed technology tree, the Energy Core level cap will increase to Lvl 35. As before, each Energy Core level increase raises the Champion level cap by 5 and the Flagship level cap by 1. This rule applies from Energy Core Lvl 31 through Lvl 35.

Building Upgrades

Upgrading buildings from Lvl 31 to Lvl 35 uses a staged upgrade system. Each level consists of 5 Energy Slots. Completing one upgrade stage fills 1 slot, and the building gains 1 full level only after all 5 slots have been filled. Each upgrade stage consumes Fusion Seeds.

Fourth Battle Queue

Upgrading the Energy Core to Lvl 33 immediately unlocks the fourth battle queue. This allows traders to command four fleets simultaneously, greatly improving the efficiency of multi-fleet operations.

Upgrade Recommendations

We recommend upgrading the Energy Core to Lvl 33 as your first major milestone. Prioritize the prerequisite buildings required to upgrade the Energy Core and prepare enough Fusion Seeds in advance. Once the fourth battle queue is unlocked, you can then upgrade other buildings based on your available resources and development needs while continuing toward a Level 35 Energy Core. This will help prevent your Fusion Seeds from being spread too thin, which could slow your progress toward your main objective.

IV. Unlocking Specialization Technologies

Once you reach 80% progress in the Combat Craft Modification technology tree, three specialization technology trees will unlock.

Kinetic Specialization

Beam Specialization

Ion Specialization

Each tree enhances its corresponding Style and provides bonuses to a range of related attributes. We recommend prioritizing the Specialization that matches your main fleet's Style. This will allow you to concentrate your resources on improving your primary fleet's combat effectiveness.

Summary

Fusion Seed is required for both technology research and Lvl 31–35 building upgrades, making it a key resource during this stage. Build the Fusion Seed Refinery as early as possible, unlock additional Fusion Reactors, and keep upgrading them to improve Fusion Seed production and reduce resource bottlenecks later on.

After completing Fusion Power Systems and raising the Energy Core level cap to Level 35, we recommend raising the Energy Core level to Level 33 to unlock the fourth battle queue.

Having your fourth fleet operational early increases your overall combat capacity and gives you more flexibility when deploying multiple fleets, exploring different locations, and handling daily quests.