OpenTTDDevBlackBook/Map/SaveGame

From OpenTTD
Jump to: navigation, search
Content.png

Warning
The following information has not been confirmed for accuracy and may not be correct

Savegame File Format

Savegame files (including scenario files) consist of an 8-byte header followed by the actual savegame data in a compressed or plain form. Four types of file formats are supported by OpenTTD so far.

Header

Offset Size Description
0 4 bytes Savegame format tag in plain text (see below)
4 uint32 Savegame version in big endian format (currently it's SAVEGAME_VERSION * 0x10000)

Savegame Format Tag

Tag Savegame body format
OTTD Data compressed using LZO
OTTN Plain data
OTTZ Data compressed using Zlib
OTTX Data compressed using LZMA
Personal tools