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Nemesis: Retaliation · Board game rules

How does oxygen affect available actions?

Quick answer

Oxygen loss occurs in Sections with Inactive Life Support, reducing available Oxygen. Some actions require spending Oxygen, which cannot be used if it would drop Oxygen below 0.

Details

Oxygen mechanics primarily affect Characters through two rules:

  1. Oxygen Loss in Inactive Sections

    • If a Character is in a Section with an Inactive Life Support System (🜀), they lose 1 Oxygen at the end of their Turn during the Player Phase [p.17 — OXYGEN].
    • This ongoing Oxygen drain limits the time a Character can spend in such Sections before needing to find replenishment (e.g., via Oxygen tokens or Items).
  2. Action Restrictions Based on Oxygen

    • Some effects or Items may require a Character to "spend Oxygen" (e.g., rotating their Oxygen dial). If spending Oxygen would reduce it below 0, the action cannot be performed [p.17 — OXYGEN].
    • For example, using an Oxygen token grants 3 Oxygen but does not directly enable new actions—it only delays Oxygen depletion.

Watch out:
Oxygen does not directly unlock or lock specific actions beyond the above restrictions. However, running out of Oxygen (reaching 0) triggers a Suffocating token, giving the Character one final Turn before death. Players might mistakenly assume Oxygen affects combat or movement, but its impact is strictly tied to survival time in hostile Sections.

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