Saves (GTA 3)

This article deals with the format of a save game file for the PC version of GTA 3.

Location

By default, the game places its save game files into the folder "GTA3 User Files" which is located in the current user's Documents folder. The location of this folder varies depending upon the version of Windows installed.

The save files themselves are named in the format GTA3sfX.b where X represents the in-game slot number. There are 8 slots available in the game (1-8).

Format Details

• Save files are ALWAYS 0x3145C (201820) bytes long.
• Byte order is little endian. For example, the number 3452 is represented as as 0x7C 0x0D.
• File is divided into 22 blocks, followed by a 4-byte checksum (more info on the checksum below).

Data Blocks

There is a DWORD value preceding any block of data which is equal to the size of the block.

Block 1: Miscellaneous

Game "meta-information" giving the overall state of things. Also includes 'thescripts' sub-block.

OFFSET	TYPE	DESCRIPTION
0x0000	dword	block size
0x0004	wchar_t[24]	save name (long names are truncated on the save/load screen)
0x0034	word	SYSTEMTIME wYear
0x0036	word	SYSTEMTIME wMonth
0x0038	word	SYSTEMTIME wDayOfWeek
0x003A	word	SYSTEMTIME wDay
0x003C	word	SYSTEMTIME wHour
0x003E	word	SYSTEMTIME wMinute
0x0040	word	SYSTEMTIME wSecond
0x0042	word	SYSTEMTIME wMilliseconds
0x0044	dword	unknown
0x0048	enum	current island) (1=Portland; 2=Staunton; 3=Shoreside Vale)
0x004C	float[3]	camera coordinates (x,y,z)
0x0058	dword	length (ms) of in-game minute
0x005C	dword	weather timer
0x0060	byte	game hour
0x0061	byte[3]	(align)
0x0064	byte	game minute
0x0065	byte[3]	(align)
0x0068	word	(unknown) current pad
0x006A	byte[2]	(align)
0x006C	dword	global timer
0x0070	float	game speed
0x0074	float	(unknown) frame delta time
0x0078	float	(unknown) tick time (time of an iteration of the major game loop)
0x007C	dword	number of the frames processed from the beginning of the game
0x0080	float	(unknown)
0x0084	float	(unknown)
0x0088	float	(unknown)
0x008C	word	(unknown)
0x008E	byte[2]	(align)
0x0090	word	(unknown)
0x0092	byte[2]	(align)
0x0094	word	(unknown)
0x0096	byte[2]	(align)
0x0098	float	(unknown)
0x009C	dword	(unknown)
0x00A0	dword	(unknown)
0x00A4	dword	(unknown)
0x00A8	dword	(unknown)
0x00AC	dword	(unknown)
0x00B0	dword	(unknown)
0x00B4	dword	(unknown)
0x00B8	float	(unknown)
0x00BC	float	(unknown)
0x00C0	TheScripts	scripts info

TheScripts structure:

OFFSET	TYPE	DESCRIPTION
0x0000	dword	block size
0x0004	char[4]	'SCR\0' signature
0x0008	ScriptData	data dumped from the main.scm

ScriptData structure:

OFFSET	TYPE	DESCRIPTION
0x0000	dword	block size
0x0004	dword	script global variables amount (n)
0x0008	dword[n]	script global variables dump
0x0000	ScriptInfo	various info from scripts
0x03CC	dword	threads amount (n2)
0x03D0	CRunningScript[n2]	script threads dump

ScriptInfo structure:

OFFSET	TYPE	DESCRIPTION
0x0000	dword	block size (always 0x3C8)
0x0004	dword	$onmission var offset
0x0008	ContactInfo[16]	contacts info (opcodes 0181,0182)
0x0088	Unknown[4]	(unknown)
0x0188	dword	(unknown)
0x018C	StaticReplacement[25]	static replacements
0x031C	InvisibleObjects[20]	invisible objects
0x03BC	byte	(unknown) unused, always 1
0x03BD	byte[3]	(align)
0x03C0	dword	size of the MAIN section in the main.scm
0x03C4	dword	biggest mission size
0x03C8	word	missions count
0x03CA	byte[2]	(align)

See also

• Saves (GTA SA)
• Saves (GTA VC)

External links

•  GTAForums: GTA III Save File Documentation
• 010 template for gta 3 save file