Overview
This is the most critical episode for unlocking the true ending. A duplicate Eisele appears, the alien fully reveals itself, and the crew faces their greatest test. One wrong choice here can permanently close the path to "Eisele the Humanitarian."
This episode determines your ending. Pay maximum attention — especially during the Eisele identification scene.
Scene 1: Two Eisele's
The crew discovers two identical Dr. Eiseles, each claiming to be the real one. One is the genuine science officer; the other is an alien mimic.
How to identify the real Eisele:
- The real Eisele references specific data from Episode 3's sample analysis
- The real Eisele remembers the outcome of the Episode 2 Science Lab decision
- The fake Eisele makes small factual errors about past events
- The fake Eisele avoids direct eye contact during questioning
Key Choice: Identify the Real Eisele
| Option | Consequence | Recommended | |--------|-------------|-------------| | Choose the Eisele who references Episode 3 data correctly | Real Eisele identified, true ending path remains open | ✓ Yes | | Choose the wrong Eisele | The alien infiltrates the crew. True ending locked out. | ✗ No | | Refuse to choose / stall | The alien escapes with both Eiseles. Both die. | ✗ No |
Scene 2: The Takeover Begins
With the duplicate exposed (or not), the alien launches a full assault on the Cassiopeia's systems. Multiple characters are in danger simultaneously.
QTE Gauntlet: The longest QTE sequence in the game. Rotates between Young, Stafford, and Cernan. Stay focused.
Key Choice: Priority Target
| Option | Consequence | Recommended | |--------|-------------|-------------| | Protect the bridge (Stafford's location) | Stafford survives, but other areas compromised | ✓ Yes | | Protect the engine room (Cooper's location) | Cooper survives, but bridge is vulnerable | ✗ No | | Split your attention | Weaker protection for all, characters may randomly die | ✗ No |
Scene 3: Cooper's Stand
Cooper holds a critical chokepoint against the alien forces. This scene's outcome depends heavily on prior weapon authorization and backup decisions.
Key Choice: Hold the Line
| Option | Consequence | Recommended | |--------|-------------|-------------| | Cooper holds position until reinforcements arrive | Cooper survives, alien advance is slowed | ✓ Yes | | Cooper falls back to regroup | Cooper survives but alien advances faster | ⚠ Acceptable | | Cooper makes a solo counterattack | Cooper likely dies, but buys maximum time | ✗ No |
Scene 4: Eisele's Choice (True Ending Gate)
This is the single most important choice in the game. If the real Eisele was identified in Scene 1, she now faces a moral decision that determines the ending.
Key Choice: The Sample
| Option | Consequence | Recommended | |--------|-------------|-------------| | Sacrifice the alien sample | Destroys the sample to save the crew. Unlocks "Eisele the Humanitarian" true ending. | ✓ Yes | | Preserve the sample for science | Keeps the sample for research. Leads to "Eisele the Scientist" ending. | ✗ No (for true ending) | | Use the sample as a weapon | Unpredictable results. May kill crew members. | ✗ No |
Scene 5: Stafford's Final Command
With the alien threat contained (or not), Stafford must issue the final orders that set the course for the remaining episodes.
Key Choice: Destination
| Option | Consequence | Recommended | |--------|-------------|-------------| | Set course for Earth | Homeward Bound ending paths open | ✓ Yes | | Dock at nearest station | Docked ending paths open | ⚠ Alternative | | Maintain current position | Alien threat persists, worse outcomes | ✗ No |
Episode 6 Checklist
- [ ] Correctly identified the real Eisele (references Episode 3 data)
- [ ] Chose "Protect the bridge" to save Stafford
- [ ] Cooper held position (or fell back safely)
- [ ] Eisele chose to sacrifice the sample (true ending gate)
- [ ] Stafford set course for Earth
- [ ] Completed the QTE gauntlet with all characters alive
- [ ] All 5 playable characters still alive after this episode
Next: Episode 7
Continue to Episode 7 Walkthrough →