Fragile Explorers is an endgame Combat research that raises your base damage against hostile explorers, from 10% at level 1 to 75% at level 10. It unlocks at R&D Department 50 and is the offensive twin of Abfangjäger vermeiden: one makes your grinding hit harder, the other makes it hurt less.
What Fragile Explorers does
The bonus applies to every ship you send against explorer-class hostiles, in any content where they appear. More damage per round means shorter fights, fewer rounds of incoming fire, and more kills per hour of grinding, which quietly compounds into every daily and event that counts hostile kills.
| Ebene | Damage bonus | Requires R&D Department | Research required | Kosten | Base time |
|---|---|---|---|---|---|
| 1 | 10% | 50 | 4★ Siege Warfare 1 | 11K 4★ Ungewöhnlich Refined Ore, 9.2B Dilithium | 7.8 yr |
| 2 | 15% | 51 | — | 23B Dilithium, 18K 5★ Gemeinsame Raffiniertes Erz | 8 yr |
| 3 | 20% | 51 | — | 25.3B Dilithium, 20K 5★ Common Refined Ore | 8 yr |
| 4 | 26% | 52 | — | 7.2K 5★ Uncommon Refined Ore, 34.6B Dilithium | 8.3 yr |
| 5 | 32% | 52 | Fragile Interceptors 4, Fragile Schlachtschiffe 4 | 8K 5★ Uncommon Refined Ore, 38B Dilithium, 14K 5★ Common Refined Ore | 8.3 yr |
| 6 | 39% | 53 | — | 9K 5★ Uncommon Refined Ore, 51.8B Dilithium | 8.5 yr |
| 7 | 46% | 53 | — | 10K 5★ Uncommon Refined Ore, 57B Dilithium, 17K 5★ Common Refined Ore | 8.5 yr |
| 8 | 54% | 54 | — | 7.2K 5★ Uncommon Refined Ore, 77.7B Dilithium, 3.2K 5★ Seltene Raffiniertes Erz | 8.8 yr |
| 9 | 62% | 55 | — | 14K 5★ Uncommon Refined Ore, 116.6B Dilithium, 5.1K 5★ Rare Refined Ore | 9.1 yr |
| 10 | 75% | 56 | Fragile Interceptors 9, Fragile Battleships 9 | 11K 5★ Uncommon Refined Ore, 174.9B Dilithium, 5.4K 5★ Rare Refined Ore | 9.3 yr |
Unlock requirements
The line starts at R&D Department 50 with 4★ Siege Warfare 1, then climbs the R&D ladder with further weapons prerequisites per level, all listed above.
Cost and research time
Per-level costs are in the table above. Maxing all 10 levels totals about 11K 4★ Uncommon Refined Ore, 608.3B Dilithium, 69K 5★ Common Refined Ore, 66.4K 5★ Uncommon Refined Ore, 13.7K 5★ Rare Refined Ore. The base research time adds up to roughly 84.7 yr on paper; research speed bonuses cut real timers to a small fraction of that, so use it to compare levels, not to plan your calendar.
Is Fragile Explorers worth it?
Yes if explorer hostiles are among your daily targets; at 75% this is one of the strongest grind accelerators in the tree, and its 84.7-year base time tells you the levels are meant to be a long-term companion, not a sprint. Full branch on the Combat Research guide; target picking on the hostile guide.