MAP (file format)
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The MAP file format is a plain-text file format used by 
GoldSrc, 
id Tech 2, 
id Tech 3, and id Tech 2, which stores entities and level geometry in a format which can be understood by the map compilers (and in the case of id Tech 4, the game itself).
At its core, the format consists of several entities, each of which is optionally capable of storing one or more brushes and (only in 
) patch meshes.
Variants
| Header text | Supported by | Information |
|---|---|---|
| Quake I (Legacy) |
Most tools, except  Hammer 4.x |
The original format. |
| Quake I (Valve220) |
All GoldSrc tools, most modern Quake tools, and Hammer 4.x |
Variant of the Quake 1 (Legacy) format with additional texture UV precision |
 Quake II (Legacy) |
All Quake II Engine tools, and most id Tech 3 tools |
Variant of Quake 1 (Legacy) format which optionally stores three additional WAL metadata flags |
| Quake II (Valve220) |
 J.A.C.K.,  NetRadiant-Custom, and  TrenchBroom |
Variant of Quake 2 (Legacy) format with Valve220-style UVs |
| Quake III (Axial Projection) |
All id Tech 3 tools |
Variant of Quake 2 (Legacy) format with support for patch meshes ("curves") |
| Quake III (Brush Primitives) |
Most id Tech 3 tools, except TrenchBroom |
Variant of Quake 3 (Axial Projection) format which stores brushes differently  Confirm:As vertices instead of planes? |
| Quake III (Valve220) |
J.A.C.K., NetRadiant-Custom, TrenchBroom |
Variant of Quake 3 (Axial Projection) format with Valve220-style UVs. Not yet standard. |
| Doom 3 (Legacy) |
All id Tech 4 tools |
Variant of Quake 3 (Axial Projection) format which can store patch meshes differently [Elaborate?] |
| Doom 3 (Valve220) |
TrenchbroomBFG | Variant of Doom 3 (Legacy) format with Valve220-style UVs |
Entities
KeyValues
Brushes
Patch meshes
See also
- VERC/MAP file format - casual explanation of the Quake 1 Valve220 MAP format
- VMF
- RMF