This is the storyline timeline of the Metroid series according to developers, guides and interviews.
- Metroid/Metroid Zero Mission
- Metroid Prime/Metroid Prime Pinball
- Metroid Prime: Hunters
- Metroid Prime 2: Echoes
- Metroid Prime 3: Corruption
- Metroid 2: Return of Samus
- Super Metroid
- Metroid: Other M
- Metroid Fusion
The timeline was once shrouded in mystery, but was made clear during the events of Metroid: Other M.
The Timeline was originally Metroid, Metroid 2: Return of Samus, then Super Metroid, but with the release of Zero Mission, the Prime sub-series, Fusion, and Other M, the timeline was thrown into question.