sfall1 (Fallout 1 Engine Extension)

sfall1 is a plugin that adds engine tweaks, fixes, and modding features to Fallout 1.

Main features of sfall1 (the engine-tweak mod for Fallout 1):

• Increased movement and combat speed (up to ~10× normal)
• Ability to play in a window and in higher colour / graphical modes (e.g. 16-bit / “modern” colour modes)
• Use of Direct3D9 instead of DirectDraw
• Mouse enhancements: scroll wheel usable in inventory / barter / conversation / save-load menus; ability to assign actions to middle mouse button; adjust mouse sensitivity beyond the vanilla limits
• Ability to adjust or remove the 13-year time limit in the game’s plot/mechanics
• Fixes for broken perks such as Pathfinder and Sharpshooter
• Additional script functions for modders (extending what scripting can do)

Development history:

• It was originally started by Timeslip, who later focused on sfall for Fallout 2
• Crafty continued the Fallout 1 branch (“sfall1”), porting back many FO2-only features to FO1.

Important: sfall1 (Fallout 1) is not the same as sfall (Fallout 2). sfall (FO2) is maintained by the sfall team and targets Fallout 2 specifically.

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What is here?

• A curated archive of sfall1 versions found on the Internet (historical releases).
• Each version lives in its own branch and tag, with a corresponding GitHub Release for easy download.
• The main branch tracks the latest known stable version.
• Releases include:
  • Removal of extra code not related to plugin activation
  • Additional Ukrainian, French, German, and Spanish translations

For sfall (FO2), see the official repo and docs: sfall-team/sfall and its GitHub Pages. https://github.com/sfall-team/sfall

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Keyboard & Mouse Shortcuts in sfall1

sfall1 adds several new keyboard and mouse shortcuts for enhanced gameplay and modding.
See docs/keyboard.md for a full list and details.

Available keys and actions include:

• Mouse Wheel: Scrolls inventory, barter, and loot lists
• Middle Mouse Button: Toggle equipped weapons (emulates B)
• Ctrl (hold): Speed modifier
• Alt (hold): Move/drag game window (DX9 mode 5)
• Left Shift (hold): Toggle item highlights
• W: Reload weapon or use item
• Shift + 1…7: Sort inventory by type

All shortcuts can be remapped via ddraw.ini.
For more details, see docs/keyboard.md.

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Installing (Fallout 1)

1. Back up your FO1 directory.
2. Download the desired sfall1 version from this repo’s Releases.
3. Extract all files, including ddraw.dll and ddraw.ini into your Fallout 1 game folder.
4. Tune options in ddraw.ini if you want.

Notes:

• Feature sets vary by version. See each release or original notes.

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Changelist

See CHANGELIST.md for a summary of major changes, features, and fixes across sfall1 versions. This file provides a high-level overview for quick reference.

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sfall1 vs sfall (FO2) — Key Differences

• Target game:
  • sfall1 → Fallout 1 (Crafty’s continuation).
  • sfall (FO2) → Fallout 2 (ongoing team maintenance).
• Features:
  • Both provide engine tweaks and modder QoL, but FO2 sfall has broader, actively maintained feature sets.

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Credits

• Timeslip — original author of sfall (engine tweaks).
• Crafty — continued Fallout 1 branch (“sfall1”).
• sfall team — current maintainers of sfall (Fallout 2).
• Many community contributors over the years (see CREDITS.md).

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Licensing

This archive contains third-party releases that did not ship with explicit license files. Our root MIT license applies only to our own scripts and documentation. Third-party artifacts remain under their original licenses or permissions; where unclear, they are marked as unknown in THIRD-PARTY-NOTICES.md. We’re happy to correct licensing info or remove items at a rightsholder’s request (see DISTRIBUTION_POLICY.md).

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Disclaimer

This is an archival convenience for the community. We do not own Fallout or sfall/sfall1. Respect all upstream licenses and the Fallout EULA. See LICENSE file.