Door

Doors are movable barriers used to cover up openings; typically, such barriers are attached to the very openings they block. They are used by virtually all factions in the Halo universe.

Appearances
Below is a list of the various door shapes and colors seen in the Halo games. Doors are listed for Halo: Combat Evolved, Halo 2, and Halo 3. Doors are not listed for Halo Wars, nor are they listed for the currently-unreleased Halo: Reach or Halo 3: ODST.

Halo: Combat Evolved

 * Pillar of Autumn:
 * Two types of sliding doors.
 * Blast Doors.
 * Metal grate-covered maintenance shaft doors.
 * Lifeboat Airlock doors.


 * Halo: N/A


 * The Truth and Reconciliation:
 * Two different sizes of two-part Covenant sliding doors.
 * Shuttle bay doors.


 * The Silent Cartographer:
 * Triangular, tri-segmented Forerunner doors.


 * Assault on the Control Room:
 * Triangular, tri-segmented Forerunner doors.
 * Larger versions of the tri-segmented Forerunner door. (Generally leading outside, or in more important areas)
 * Large blast doors in the underground tunnels.
 * Large multi-part Control Room doors.


 * 343 Guilty Spark:
 * Triangular, tri-segmented Forerunner doors.


 * The Library:
 * Massive Forerunner security doors.
 * Several smaller types of doors.


 * Two Betrayals:
 * Triangular, tri-segmented Forerunner doors.
 * Larger versions of the tri-segmented Forerunner door. (Generally leading outside, or in more important areas)
 * Large blast doors in the underground tunnels.
 * Large multi-part Control Room doors.


 * Keyes:
 * Two different sizes of two-part Covenant sliding doors.
 * Shuttle bay doors.


 * The Maw:
 * Two types of sliding doors.
 * Blast Doors.
 * Metal grate-covered maintenance shaft doors.
 * Lifeboat Airlock doors.
 * Static tri-segmented vehicle doors (in the tunnels of the final run).

Halo 2

 * Cairo Station:
 * High-tech automatic doors, with a light indicating their locked/unlocked status.
 * Different types of Blast Doors.
 * Thick metal doors (In the tramway)
 * Glass-plated doors.


 * Outskirts:
 * Impassable gray doors with yellow upside down triangles (In the buildings of Old Mombasa).
 * Dark green metal doors in the rooms of Hotel Zanzibar.
 * Large highway doors (In the highway tunnel).
 * Corrugated metal doors (In the highway tunnel).
 * Several types of un-passable service doors (In the higway tunnel and Old Mombasa).


 * Metropolis:
 * Large highway doors (In the highway tunnel).
 * Corrugated metal doors (In the highway tunnel).
 * Several types of un-passable service doors (In the higway tunnel and the streets of New Mombasa).
 * Two-part sliding doors with glass windows, in the Mtangulizi Kampuni building.


 * The Arbiter:
 * Rectangular Forerunner airlock doors with a blue square in the middle.
 * Normal Forerunner doors.
 * Large main doors of the Gas Mine's hangar.


 * The Oracle:
 * Rectangular Forerunner airlock doors with a blue square in the middle.
 * Normal Forerunner doors.
 * Large main doors of the Gas Mine's hangar.


 * Delta Halo:
 * Forerunner doors covered in ornate carvings, with an oval eye-like symbol in the center.


 * Regret:
 * Forerunner doors covered in ornate carvings, with an oval eye-like symbol in the center.


 * Sacred Icon:
 * Forerunner Pistons.
 * Large Forerunner vehicle doors containing multiple segments which spin 90° and retract upwards.


 * Quarantine Zone:
 * Large Forerunner vehicle doors containing multiple segments which spin 90° and retract upwards.
 * Normal forerunner doors.
 * Massive, circular doors with multiple segments.


 * Gravemind:
 * Multi-layered Covenant doors.
 * Covenant prison cage doors.


 * Uprising (level):
 * Triangular Forerunner doors with two segments.


 * High Charity:
 * Multi-layered Covenant doors.


 * The Great Journey:
 * Triangular Forerunner doors with two segments.

Halo 3

 * Sierra 117: N/A
 * Crow's Nest:
 * Heavy bunker-style doors, which are opened with door control buttons, remarked by a Marine as being "old tech", as the base was built in the 21st century.
 * Large vehicle doors (Static).
 * Elevator doors.


 * Tsavo Highway:
 * Large bunker doors of Crow's Nest
 * Highway tunnel doors.
 * The Storm:
 * Person-sized industrial automatic doors.
 * Industrial vehicle doors, openable with a button.
 * Large vehicle doors.


 * Floodgate:
 * Person-sized industrial automatic doors.
 * Industrial vehicle doors, openable with a button.
 * Large vehicle doors.


 * The Ark:
 * Triangular, tri-segmented Forerunner doors.
 * Multi-part doors with segments that open upward (In the wall structure).


 * The Covenant:
 * Triangular, tri-segmented Forerunner doors.
 * Multi-part doors with segments that open upward (In the tunnel that leads to the Citadel).
 * Forerunner Control Room doors (In the Citadel).
 * Cortana:
 * Flood Portas: Large, sphincter-like orifices.
 * High Charity's multi-segmented Covenant doors with a spinning lock in the center.


 * Halo:
 * Triangular, tri-segmented Forerunner doors.
 * Forerunner Control Room doors (In Control Room).

Trivia

 * The object John-117 rode to Earth in the beginning of Halo 3, is apparently some sort of Forerunner door, part of the Forerunner Dreadnought.
 * The triangular, tri-segmented Forerunner door is the most commonly seen door model in the Halo trilogy.

Related Pages

 * Shield Door
 * Blast Door
 * Shuttle bay door
 * Porta
 * Piston