The Aggregation Underboss is a level 67 to 70 hostile flown by the Aggregation faction, found roaming Aggregation space at warp 1400 to 1700. It spawns as three hull types, Battleship, Explorer, and Interceptor, and drops Reclaimed Loot in Common through Epic grades. To beat it, match your ship class to the hull you attack and carry enough warp to reach its systems. The Aggregation is an in-game faction rather than a Star Trek species, so this page sticks to the practical numbers.
How to beat the Aggregation Underboss
Combat in STFC runs on a simple counter triangle. Interceptors beat Battleships, Battleships beat Explorers, and Explorers beat Interceptors. Survey ships are built for mining and barely hold up in a fight, so leave them docked for this target. Flying the class that counters your enemy means your ship deals more damage and takes less in return, which is the difference between a clean kill and a long repair.
The Aggregation Underboss is not a single ship. It shows up as all three combat hulls, so the right counter depends on which variant you face. Tap the hostile first to check its ship type, then send the hull that beats it. Against a Battleship Underboss, bring an Interceptor. Against an Explorer Underboss, bring a Battleship. Against an Interceptor Underboss, bring an Explorer. If you would rather not swap ships each time, pick one variant to farm and stay in the systems where it spawns.
This is a level 67 to 70 target, so it sits firmly in endgame territory. Early cadet crews will not survive here, so you want an epic captain that boosts weapon damage against hostiles, backed by officers that add damage or cut the hit you take. Weapon and defense research on your account matters as much as the seats you fill, so keep both moving. The best officer picks shift with every update, so check the Officer Tier List for current crews at your level, and treat any single recommendation as a starting point.
Where to find the Aggregation Underboss
Aggregation Underbosses cluster in Aggregation space across a high warp band, from 1400 at level 67 up to 1700 at level 70. Each level sits in its own set of systems, so set your warp range to match the level you want before you head out. These are roaming spawns rather than fixed nodes, so they respawn on a timer; hop between the listed systems if a target is not on your screen right away.
| Level | Warp | Systems |
|---|---|---|
| 67 | 1400 | Olesa, SAT-04 |
| 68 | 1500 | Turrant |
| 69 | 1600 | Iono’Ka |
| 70 | 1700 | LE-20 |
If your warp research does not yet reach 1700, start on the level 67 systems, where Olesa and SAT-04 give you two systems to rotate through, and work up as you unlock range.
Rewards and what it drops
The Aggregation Underboss drops Reclaimed Loot in four grades, Common, Uncommon, Rare, and Epic, on every level from 67 to 70. Uncommon comes in the largest stacks, followed by Rare, then Common, with Epic dropping in a wide range that can swing from a handful to several thousand. Ship XP also scales with level, so the higher-level Underbosses hand back more experience toward the ship you fly against them.
| Drop | What it is |
|---|---|
| Common Reclaimed Loot | The base Aggregation resource, dropped in stacks of about 4,500 to 5,000 per kill. |
| Uncommon Reclaimed Loot | A higher grade of the same loot line, in stacks of about 11,000 to 13,000. |
| Rare Reclaimed Loot | A rarer grade, dropped in stacks of about 8,100 to 9,000. |
| Epic Reclaimed Loot | The top grade, dropped in a wide range from about 200 to 6,000. |
Aggregation Underboss stats
Stats vary by hull variant and climb steeply with level. The rows below use the Interceptor variant as a reference point across the low, middle, and top of the level band. The jump from level 69 to 70 is large, so do not assume a ship that clears level 69 will handle level 70.
| Level | Total strength | Hull HP | Shield HP | Attack | Defense | Ship XP |
|---|---|---|---|---|---|---|
| 67 | 219,313,498 | 133,530,370 | 133,530,370 | 38,532,883 | 47,250,245 | 34,000 |
| 69 | 954,364,465 | 592,391,068 | 592,391,068 | 294,104,222 | 67,869,175 | 45,000 |
| 70 | 14,852,672,877 | 13,357,510,245 | 13,357,510,245 | 1,318,146,867 | 177,015,765 | 51,800 |
Total strength is a rough summary of the ship, not a promise that any hull will fall in one salvo. Trust the hull and shield numbers when you judge whether your own ship can outlast the fight, and remember that a counter-class ship swings the exchange in your favor even when the raw strength looks close.
Is the Aggregation Underboss worth grinding?
Yes, if you are farming Reclaimed Loot at the top of the game or leveling an endgame warship. The four-grade drop table pays out well per kill, and the higher levels return more ship XP. To keep runs efficient, match your warp to the level you want and bring the hull that counters the variant you are hitting. Do that and the Underboss goes down without heavy repair time, which is what makes it a steady endgame farm rather than a one-off fight.