|Events file structure|
FTL: Faster Than Light has spawned an active modding community. Modders are largely congregated to:
Many new mod threads have spawned on the official FTL Forum. However, it should be noted that Subset games have yet to officially endorse modding in any way.
 Editing The Data Files
The data files for FTL are packaged into
.dat files containing the various functions and resources of the game. Once unpacked, each DAT file contains some part of the game's content, such as music, art, and configuration files.
Here's the location of the
.dat files on various systems:
\Steam\steamapps\common\FTL Faster Than Light\resources\
C:\Program Files\GOG.com\Faster Than Light\resources\
- Steam for Linux:
~/.local/share/Steam/SteamApps/common/FTL Faster Than Light/data/resources/
 FTL UnPacker
There is a GUI written in Java for unpacking the .dat , based on the ftldat code, available from this thread.
 Structure of the Events files
The structure of the events files is documented here in detail.
marinepower did a remarkable job enumerating the contents of the
data.dat file. His/her very thorough work can be seen here.
 Save Game Editing
ComaToes and Vhati wrote the Profile/SavedGame Editor.
It'll also unlock ships and achievements, and unpack resources.
Its commented source code documents the structure of profile.sav and continue.sav.
 Ship Configuration
 Rebel Fleet Pursuit
Rebel Fleet pursuit is handled by trigger events in the events.xml file inside the data.dat file. Edits to data.dat are still unstable, and reliable editors are in active development (see the thread on packing and repacking FTL files for more information).
DisposableNinja figured out how to disable fleet pursuit altogether:
- You can change this via events.xml:
- Find the event
- When these events trigger, it will set the pursuit value to whatever you wish. -100000 is a bit overkill, but it works.
START_GAMEis triggered when you start a new game and
START_BEACONis the default event for new sectors.
AirRevenant on reddit has also posted a downloadable .dat file for FTL AE 1.5.10 that employs DisposableNinja's method to end Fleet Pursuit
BlackAlpha on the FTL Forums implemented a more nuanced hack, one which slows the fleet down.
On the topic of how he implemented the changes, BlackAlpha said:
- In data.dat, there are files that are called "events". They contain events, which are basically triggers. One of the things they can do is set how far away the Rebel fleet is. This is done by the command "modifyPursuit amount".
- If you really want to know how it works. The fleet is always there. There's just a delay before the fleet appears. The events can modify the delay, either making it longer or shorter. You can also delay or speed up the fleet after it appears. It's all done by that command I told you about earlier. That's basically how the fleet's speed is handled.
 CaptainShooby's Tutorial
Here is my very first modding tutorial. I tried to cover the following:
- Preparation for modding
- Custom events
- Custom sectors