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Key facts in 30 seconds
- Fleet losses leave exactly 50% metal and crystal on the field
- Defenses give ZERO debris (DEFS_CDR = 0)
- Deuterium burns — never becomes debris
- Recyclers collect from any nearby planet
- If you don't collect — the enemy will
How much debris you get
After every battle, a debris field is left in the target orbit — the most underrated resource source in Xterium.
Exact Xterium-server numbers:
- Fleet debris (any side): 50% of metal and crystal losses
- Defense debris: 0% — defenses burn completely
- Deuterium: never becomes debris
Bottom line: exactly half of metal and crystal from lost ships returns as debris and is open to whoever collects first. Defenses and deuterium are total loss.
| Constant | Value | Meaning |
|---|---|---|
| FLEET_CDR (min/max) | 50 / 50 | Процент обломков от потерь флота — фиксировано 50% |
| DEFS_CDR | 0 | Процент обломков от защиты — защита НЕ даёт обломков |
| DEBRIS_FACTOR (deut) | n/a | Дейтерий вообще не превращается в обломки |
Numerical example
Scenario: attacker lost 100 cruisers, defender lost 200 rocket launchers + 50 cruisers.
| Side | Lost metal | Lost crystal | Debris metal | Debris crystal |
|---|---|---|---|---|
| Атакующий: 100 крейсеров | 2,000,000 | 700,000 | 1,000,000 | 350,000 |
| Защитник: 200 турелей + 50 крейс. | 1,400,000 | 350,000 | 500,000 | 175,000 |
| ИТОГО (на поле обломков) | — | — | 1,500,000 | 525,000 |
Debris field total: 1,500,000 metal + 525,000 crystal. Enough for ~50 cruisers — half of losses returns. If you don't send recyclers within hours, the enemy will.
Who owns the debris field?
Nobody. Open resource — whoever sends recyclers first takes it. The defender has a geographic advantage (their planet is right there).
How many recyclers do I need?
Each recycler holds 20,000 units. For a 2,000,000 field you need ~100 recyclers per trip. Formula: (debris_total / 20000) + 10% safety.
Can I increase the % of debris?
No — FLEET_CDR is hard-coded in the universe config. No building, research, or senator changes it.
What if nobody collects?
Debris stays on the field forever, no expiration. But any player can attack your recycler fleet en-route.
For min-maxers
Exact combat-module formulas. Player TL;DR: «50% from fleet, 0% from defense, 0% from deuterium».
Formulas:
обломки_металла = (потерянный_металл_флота + потерянный_металл_защиты / DEFS_CDR) × FLEET_CDR / 100
обломки_кристалла = (потерянный_кристалл_флота + потерянный_кристалл_защиты / DEFS_CDR) × FLEET_CDR / 100Key Xterium constants:
FLEET_CDR= 50 (fixed, no min/max spread)DEFS_CDR= 0 (defenses give nothing)
A legacy OGame RNG roll remains in code, but with min=max=50 the effect is zero. If the config ever shifts to classic OGame band (e.g. 20-50%) — metal and crystal could theoretically roll independently. On current Xterium, count on exactly 50% — no more, no less.
Quick citation reference
Source: Xterium engine combat-report module. Constants: FLEET_CDR = 50/50 (fleet → 50% debris), DEFS_CDR = 0 (defenses → 0%), deuterium does not roll into debris. Applies to: Xterium REV 207+.
