Script Extender (FOSE)
by Ian Patterson
(ianpatt), Stephen Abel (behippo), and Paul Connelly (scruggsywuggsy
Fallout Script Extender, or FOSE for short, is a modder's resource that
expands the scripting capabilities of Fallout 3. It does so without
modifying the Fallout3.exe or the G.E.C.K. files on disk, so there are
no permanent side effects.
Contributions from: Timeslip, Elminster EU
2021-10-12 update (if you are seeing CRC = D32E228B errors): Bethesda has released an update labeled 184.108.40.206 on Steam. This does two things: removes GFWL, and updates the compiler to VS2019. I do not have a timeframe for when FOSE can be updated to this new version.
Current stable version: v1.2 b2
Latest loader: http://fose.silverlock.org/download/fose_loader.7z (adds support for Russian 220.127.116.11)
This is a stable and supported release of FOSE, so modders are free to release mods based upon it.
FOSE v1.2 beta2 provides support for:
DVD and Steam builds 18.104.22.168, 22.214.171.124, both versions of 126.96.36.199,
188.8.131.52, 184.108.40.206 and 220.127.116.11.
The no-gore version of 18.104.22.168 released
in Germany is also supported.
The GOG version is also supported.
GECK builds 22.214.171.124 and 126.96.36.199.
Current beta version: v1.3 b2
FOSE does not support:
Retail DVD and Steam build
188.8.131.52 (the original pre-patch version of Fallout) - if you have this version, update to 184.108.40.206
Russian DVD version of Fallout 3 (it uses Starforce
encryption on Fallout3.exe)
Direct2Drive version of Fallout 3
(it encrypts the Fallout3.exe) - download the game from Steam if you would like to use a digital download service
Polish DVD version of Fallout 3 (it uses SafeDisc copy protection on Fallout3.exe)
The Windows App Store version of Fallout
FOSE is incompatible with Windows Live, so when running via
fose_loader.exe, Live will be disabled. As Live operates as a
cheat-detection tool similar to Punkbuster or VAC, FOSE's in-memory
modifications are inherently incomptible. Don't worry about being
banned or anything like that, everything still works when running
Fallout normally. To download DLC, launch fallout3.exe directly instead
of via the loader. After downloading the DLC, you will then need to
move the DLC files in to the Fallout data folders to use them like any