ResourceSecondary
Oxygen System
A continuously draining resource that pressures the player to keep moving.
SurvivalTimerResource
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Player intent
The player wants to manage a depleting clock while still acting deliberately.
Role in the core loop
Oxygen sets the soft time limit of every room and interacts with both traversal and salvage decisions.
Usage conditions
- Player is outside a safe pressurized zone.
Parameters
| Parameter | Value | Type | Notes |
|---|---|---|---|
| Base drain | 1%/s | rate | — |
| Tank capacity | 100% | percent | — |
| Recycler regen | 0.4%/s | rate | Tier 2 module |
Rules & logic
- Reaching zero oxygen is an instant, non-recoverable failure.
- Boosting and tethering add a flat oxygen cost on top of base drain.
Scenarios
Recycler relief
- Given
- The player has the oxygen recycler module equipped.
- When
- They hold position in a calm room.
- Then
- Net oxygen drain is reduced, enabling longer planning.
Edge cases
- Recycler regen must never exceed base drain to avoid infinite stalling.
Dependencies
- Momentum traversal
- Suit module loadout
QA notes
- Verify oxygen UI pulse begins at the 15% threshold.