NVForever

An open-source, clean-room reimplementation of the Fallout: New Vegas engine, in the spirit of OpenMW. It runs on the data files of your own copy of the game; it ships no Bethesda content and contains no Bethesda or Gamebryo code.

NVForever is not affiliated with or endorsed by Bethesda Softworks, ZeniMax Media, Microsoft or Obsidian Entertainment. See LEGAL.md.

Getting started

1. Own and install Fallout: New Vegas (base game; DLC optional).
2. Download a build from the releases page and unpack it outside the game folder.
3. Run nvforever.exe (or ./nvforever.sh on Linux) and point it at your game folder when asked.

NVForever never writes into the game folder. Its settings, saves and logs live in Documents\My Games\NVForever.

Mods

• Mod Organizer 2: add nvforever.exe to MO2's executables (the drop-down beside Run, then <Edit…>) and start it from there. It loads the plugins ticked in MO2, in MO2's order, and the game folder MO2 manages. See docs/mod-organizer-2.md.
• Without a mod manager: put the mod in the game's Data folder, then turn its plugin on in Documents\My Games\NVForever\plugins.txt with a * in front of its line. The order of the lines is the load order. NVForever keeps its own list, so the original game's mod list is not changed.

Mods that need NVSE may not work yet: NVSE plugins (.dll) do not run in NVForever.

Building from source

Needs Rust and Python 3.11+.

cd engine
cargo run --release --bin nvforever -- --data "<path to Fallout New Vegas>/Data"

More: docs/development.md (build, test, options, tools) · docs/status.md (what's built) · docs/outstanding.md (what's left).

Community

Chat, questions and playtesting: Discord.

Bugs

Report bugs and differences from the original with the issue forms. Crash reports are written to Documents\My Games\NVForever\logs. Never attach game files.

Contributing

Pull requests are welcome. Read CONTRIBUTING.md first: the clean-room rules there decide what can be merged.

Support

NVForever is free. If you'd like to support it: ko-fi.com/lootjunkieazza. Donations buy nothing extra; you still need your own copy of the game.

Licence

GPL-3.0-or-later; see LICENSE and LEGAL.md.