1 source 1m ago
Open-Source Fallout: New Vegas Engine Project Reaches v0.4.0
GitHub user LootJunkieAzza is developing NVForever, a standalone open-source engine intended to run Fallout: New Vegas without the original Gamebryo engine. The project ships no game data, so a purchased copy of the Obsidian-developed, Bethesda-published RPG is required.
Reporting from 1 source: Game Spark.
Why it matters
The rebuild targets the engine-level limits that crash fixes, memory patches and DXVK cannot reach, which places it closer to OpenMW in kind than to another mod for the same 16-year-old engine.
Key Facts
- NVForever is an open-source standalone engine project for Fallout: New Vegas, handled on GitHub by LootJunkieAzza.
- The project contains no game data and requires a legitimately purchased copy of Fallout: New Vegas to run.
- Version 0.4.0, released on October 21, 2026, added Caravan, slot machines, companion commands, weapon modifications, scope display and limb loss.
- Mod Organizer 2 is supported, but NVSE script extender plugins are not, which limits compatibility with existing mods.
- Fallout: New Vegas was developed by Obsidian Entertainment and published by Bethesda Softworks.
Version 0.4.0, released October 21, 2026, adds the Caravan card game, slot machines, companion commands, weapon modifications, scope display and limb loss. Archive and plugin loading, physics, combat and conversation are partly implemented.
Mod Organizer 2 is supported, so some existing Fallout: New Vegas mods load into the new engine, but NVSE script extender plugins do not work and compatibility with the existing mod scene stays partial. The stated method is a rewrite from publicly available material plus analysis of how the original behaves: archive and plugin loading, rendering, physics, scripting, AI, combat, conversation, menus and audio processing. Gamebryo's performance and feature limits are the reason given, since crash-prevention mods, memory management tools and DXVK only go so far. The build is a pre-release, and the full game does not yet play cleanly.
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