What is the DXS file format?
.dxs files are saved game files for *Deus Ex* (2000), the first-person role-playing shooter developed by Ion Storm Austin and published by Eidos Interactive. The extension combines DX (the game's abbreviation) with S for save.
The format is built on the Unreal Engine 1 serialized package system, adapted specifically for Deus Ex. A save file captures the complete game state at the moment of saving: the current level, full inventory, health and energy values, active augmentations and their upgrade tiers, NPC states, and the positions of interactive world objects such as crates and doors.
Files are written to the game's Save subdirectory. Save compatibility between patch versions is not guaranteed; the final stable patch 1.112fm is the standard reference. The game is available as *Deus Ex: Game of the Year Edition* on Steam (app ID 6910) and GOG.
The PlayStation 2 port (2002) uses console memory card saves incompatible with .dxs. Sequels - *Invisible War*, *Human Revolution*, and *Mankind Divided* - each use their own unrelated save formats and do not read .dxs files.
Security & safety
RISK: LOWBinary game save file; no known vulnerabilities. Modifying saves manually is possible but only affects gameplay.
Format details
in a nutshellPrograms that open DXS files
Windows2 apps
Deus Ex (Steam - GOTY Edition)
Paid Place DXS files in the game's Save\ folder (e.g. C:\Deus Ex\Save\). Launch game, choose Load Game.
Deus Ex (GOG.com)
Paid Place DXS files in the Save\ subfolder of the GOG installation. Use Load Game in-game. 
macOS1 app
Deus Ex (macOS - Aspyr port)
Paid Use the game's Load Game function; save folder location is in ~/Library/Application Support/. Technical details
deep spec| File type | Binary game save state |
| Developer | Ion Storm Austin (game); Eidos Interactive (publisher) |
| Engine | Unreal Engine 1 (modified serialization for Deus Ex) |
| Encoding | Binary, little-endian |
| Container | Unreal Engine 1 serialized object package (Deus Ex-specific) |
| Typical file size | 50 KB - 5 MB |
| Data captured | Level progress, inventory, health/energy, augmentation states, NPC states, world object positions |
| Save directory | Save subdirectory of the Deus Ex installation folder |
| Patch compatibility | Files from different patch versions may be incompatible; v1.112fm is the final stable patch |
| Platform | Windows, macOS (Aspyr port, 2000) |
| PS2 version | PlayStation 2 port (2002) uses console memory card saves - incompatible with .dxs |
| Game availability | Steam (app ID 6910) and GOG as Deus Ex: Game of the Year Edition |
| Sequel formats | Deus Ex sequels (Invisible War, Human Revolution, Mankind Divided) use separate, incompatible save formats |
| Released | June 2000 (Deus Ex, Windows) |
| Latest version | N/A - single format version tied to Deus Ex (2000) |
DXS conversions
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