FModel

FModel is an Unreal Engine asset viewer and explorer. It requires some game-specific configuration before it can properly load a game's assets.

Manual Installation

Download FModel from the official releases page, and extract it to your location of choice.

Installing with Tempo

FModel can also be installed using tempo_cli:

tempo_cli tool install fmodel

To install FModel and immediately launch it:

tempo_cli tool install fmodel --run-after-install

To run FModel, and automatically download if not installed:

tempo_cli tool run fmodel

Configuring FModel

FModel often needs a few things to be able to open, extract, and parse information in assets.

The most common configuration options are:

Setting	Required	Description
Unreal Engine Version	Always	The Unreal Engine version used by the game, there are game specific presets, not every game has one
.usmap File	Sometimes	Property mappings required by some games
AES Key	Sometimes	Used to decrypt encrypted game assets

Unreal Engine Version

FModel requires the Unreal Engine version used by the game.

For example:

Unreal Engine 4.27

or:

Unreal Engine 5.3

add a section here on how to determine a game's unreal engine version

.usmap Files

Some games require a .usmap file to correctly interpret their assets.

explain how to get a usmap file, and how to configure fmodel to use the usmap file as well explain how to tell if one is even needed

AES Keys

Depending on the game, FModel may need one or more AES keys. Most games that require AES keys only need a single key. AES keys are game-specific. The correct key must be used for the version of the game you are trying to load.

explain how to get one or more aes keys from the game

Quick Setup

For a typical game, the setup process is:

1. Install FModel
2. Select the game's directory
3. Select the correct Unreal Engine version or game specific preset if one exists
4. Add a .usmap file if required
5. Add the required AES key(s) if necessary
6. Load one or more archives via the load section in FModel