MNEHMOS · FALLOUT: NEW VEGAS

Engine Bug Wiki

A live, evidence-backed catalog of New Vegas engine bugs. Community reports are leads; reproduction, binary evidence, and runtime experiments decide what becomes fact.

—GECK remaining seeds
—active investigations
—priority 5 targets
—fixes shipped

CURRENT PROGRAM

Turn old bug reports into reproducible engine knowledge.

Each investigation moves through: report → source check → vanilla reproduction → static RE → root cause → minimal patch → runtime reproduction. Unsupported semantic claims stay provisional.

RESEARCH DESK

Encounter zones

Open H1 desk ->
H1-SLRuntime pending

Encounter-zone save/load lifecycle

The static chain recovers serialized zone-ID lookup, the TESForm-to-BGSEncounterZone cast, storage at ExtraEncounterZone +0x0C, and missing-zone cleanup.

Read the lifecycle boundary ->
H1-GPOpen

Encounter-zone gameplay consumption

Separate search: CELL/reference context, effective zone, zone properties, leveled actor/list selection, and spawn decision.

Read the open question ->

INVESTIGATION QUEUE

Engine bugs

Seed source

The initial backlog is transcribed from GECKWiki's Engine Bugs (Fallout New Vegas) “Bugs remaining” section. Being on that list does not make a bug confirmed-open in 2026. The purpose of this site is to verify, falsify, deduplicate, and ultimately explain those reports.

Open GECKWiki source ↗