Who they are
The Sole Survivor begins with a family loss and becomes the person who can decide which institution shapes Boston's future. Their choice is intentionally open, so this guide follows the factions rather than assigning a canonical ending.
Their story belongs to The Commonwealth. A post-nuclear Boston where family, synthetic life and four visions of order collide.
Their story, step by step
- Step 1
Lose the old world twice
The Sole Survivor wakes from Vault 111 carrying a personal loss into a Commonwealth already shaped by other people's generations of survival.
- Step 2
Search for family and truth
The search for Shaun leads into the Institute conflict, where parental attachment collides with questions of experiment, autonomy and harm.
- Step 3
What their choices leave behind
The Survivor's story remains player-shaped, but its strongest theme is the refusal to treat the past as permission to control the future.
Turning points
- The murder in Vault 111.
- Emerging into the Commonwealth.
- Discovering the Institute's connection to Shaun.
Where their story stands now
The Survivor's story remains player-shaped, but its strongest theme is the refusal to treat the past as permission to control the future.
Who they are tied to
Games they appear in
Where this fits in the story
- The Commonwealth · step 1
Wake in Vault 111
The Sole Survivor loses the old world and is thrust into a future without its rules.
- The Commonwealth · step 2
Search for Shaun
The family mystery leads into the Institute's hidden power.
- The Commonwealth · step 3
Choose a faction
Each faction proposes a different moral answer to the Commonwealth's instability.
- The Commonwealth · step 4
Decide what survives
The ending is best understood as a player route, not a single canon conclusion.