D2 Cloud Stash

Save file format (.d2s)

The save file contains all the character current state.

Header

The header is a fixed-size section with file metadata and basic character state.

Address	Type	Description
0x0000	int	Signature (0x55aa55aa)
0x0004	int	Version (99)
0x0008	int	File size
0x000c	int	Checksum
0x0010	int	Active equipment: 0 Main 1 Swap
0x0014	16	?
0x0024	byte	Character flags: 0x40 Ladder 0x20 Expansion 0x08 Dead 0x04 Hardcore
0x0025	byte	Character progression: incremented for each act boss killed; determines the character title
0x0026	2	?
0x0028	byte	Character class: 0 Amazon 1 Sorceress 2 Necromancer 3 Paladin 4 Barbarian 5 Druid 6 Assassin
0x0029	2	?
0x002b	byte	Character level
0x002c	4	?
0x0030	int	Last played (epoch seconds)
0x0034	4	?
0x0038	int[16]	Skills assigned to the "Skill #" hotkeys from the game control settings; if no skill is assigned, the corresponding value is -1
0x0078	int	Left mouse button skill (main equipment)
0x007c	int	Right mouse button skill (main equipment)
0x0080	int	Left mouse button skill (swap equipment)
0x0084	int	Right mouse button skill (swap equipment)
0x0088	32	Character menu appearance (?)
0x00a8	byte[3]	Difficulty status (Normal, Nightmare and Hell): 0x80 Unlocked 0x78 ? 0x07 Current act (0-4)
0x00ab	int	Map ID (?)
0x00af	2	?
0x00b1	short	Mercenary dead
0x00b3	int	Mercenary seed (?)
0x00b7	short	Mercenary name ID
0x00b9	short	Mercenary type
0x00bb	int	Mercenary experience
0x00bf	74	?
0x010b	char[16]	Character name
0x011b	51	?
0x014f	Quests (298)	Quests status
0x0279	Waypoints (80)	Waypoints status
0x02ca	NPCs (51)	NPCs status
0x02fc	Attributes	Character attributes
	Skills	Character skills
	Items	Character items

Quests

Describes the status of all quests in the game, as well as some NPC introductions and act travelling.

Address	Type	Description
0x00	byte[4]	Woo!
0x04	6	?
0x0a	Difficulty Quests x 3	Quests status for Normal, Nightmare and Hell

Difficulty Quests

For each act, this structure describes if the player has travelled to the act, introduced to the main NPC and each quest status. Note that the quest order may not be the same as in game.

Each quest data is contained in a short, individual bits representing milestones that are specific to the quest. The only common milestone is the bit 0x0001 which marks the quest completion. See further below for details.

Address	Type	Description
0x00	short	1 if introduced to Warriv
0x02	short	Act 1.1: Den of Evil
0x04	short	Act 1.2: Sister's Burial Grounds
0x06	short	Act 1.5: Tools of the Trade
0x08	short	Act 1.3: The Search for Cain
0x0a	short	Act 1.4: The Forgotten Tower
0x0c	short	Act 1.6: Sisters to the Slaughter
0x0e	short	1 if travelled to Act 2
0x10	short	1 if introduced to Jerhyn
0x12	short	Act 2.1: Radament's Lair
0x14	short	Act 2.2: The Hodradric Staff
0x16	short	Act 2.3: Tainted Sun
0x18	short	Act 2.4: Arcane Sanctuary
0x1a	short	Act 2.5: The Summoner
0x1c	short	Act 2.6: The Seven Tombs
0x1e	short	1 if travelled to Act 3
0x20	short	1 if introduced to Hratli
0x22	short	Act 3.4: Lam Esen's Tome
0x24	short	Act 3.3: Khalim's Will
0x26	short	Act 3.2: Blade of the Old Religion
0x28	short	Act 3.1: The Golden Bird
0x2a	short	Act 3.5: The Blackened Temple
0x2c	short	Act 3.6: The Guardian
0x2e	short	1 if travelled to Act 4
0x30	short	1 if introduced to Act 4 (true if travelled)
0x32	short	Act 4.1: The Fallen Angel
0x34	short	Act 4.2: Hell's Forge
0x36	short	Act 4.3: Terror's End
0x38	short[3]	Empty (Act 4 has only 3 quests)
0x3e	short	1 if travelled to Act 5
0x40	short	1 if introduced to Cain in Act 5
0x42	4	?
0x46	short	Act 5.1: Siege on Harrogath
0x48	short	Act 5.2: Rescue on Mountain Arreat
0x4a	short	Act 5.3: Prison of Ice: 0x0080 Scroll consumed
0x4c	short	Act 5.4: Betrayal of Harrogath
0x4e	short	Act 5.5: Rite of Passage
0x50	short	Act 5.6: Eve of Destruction
0x52	14	?

Waypoints

Describes the status of all waypoints in the game.

Address	Type	Description
0x00	byte[2]	WS
0x02	6	?
0x08	Difficulty Waypoints x 3	Waypoint status for Normal, Nightmare and Hell

Difficulty Waypoints

Describes if the player has activated each waypoint in this difficulty, represented by individual bits in the same order as in game. For example, 0x0000000001 is the status for the Rogue Encampment waypoint.

Address	Type	Description
0x00	2	?
0x02	5	Waypoints activated
0x07	17	?