Start with the question you came here to answer. The guides explain the official meaning of experimental vaults, the Season Pass transfer rule, and the limits of one player’s missing-vault report. Each article links to the material it uses.
Official Fallout Shelter base-game imagery; seasonal features may differ.
Choose your question
A definition, a reward rule and a missing-save report need different kinds of evidence.
- New to experimental vaults? Start with their official meaning and the scope of the recorded gameplay.
- Wondering what you keep? Read the transfer rule described in the cited Season Pass FAQ.
- Missing progress? Use the reported timeline to understand what remains unverified.
Know what the source establishes
Official help pages describe the rules they cover. A gameplay recording shows one playthrough. A single incident report can explain a player’s experience without proving how often it happens or what caused it.
Before you open another vault
Does every season use the same mechanics? One season’s recording does not establish the rooms, resources or attack patterns of every experimental vault.
Does every item transfer? Use the precise rule in the cited Season Pass FAQ; other inventory and resource questions remain unverified by that source.
Is there a proven fix for a disappeared vault? The guide covers one player’s report and details to record for support. It does not promise a recovery method.
