How do you create a mod for DCS World?

To create a DCS World mod, first choose the content type—mission, livery, script, object or flyable aircraft—then build it with the Mission Editor, Lua and appropriate art tools. Package it under the correct Saved Games folder, test in a clean profile, document dependencies and retest after every DCS update.

What kind of DCS World mod should you create?

Choose the smallest mod type that can deliver the feature; complexity rises sharply from a mission or livery to a complete aircraft. If the required toolchain is unclear, our overview of flight simulator add-on development tools explains the roles of Lua, modelling software, texture editors and DCS-specific utilities.

Here, DCS means the profile directory your installation actually uses beneath %USERPROFILE%\Saved Games. Older or branch-specific installations may use a differently named DCS directory, so do not assume that two installations share the same profile.

What files and folders does a DCS mod need?

There is no universal DCS mod layout because a mission, livery and aircraft are loaded in different ways. A mission may be only a .miz file, while a livery normally needs texture files and a description.lua inside the correct unit-specific directory.

An aircraft or technology package commonly has an entry.lua at its root. That file registers the package and points DCS towards its resources; the remaining folders depend on the project:

• Shapes for DCS-readable 3D model files.
• Textures for texture resources or texture archives.
• Liveries for paint schemes supplied inside the package.
• Scripts or Cockpit\Scripts for definitions, systems and cockpit behaviour.
• Input for keyboard, joystick and axis command definitions.
• Sounds for original or properly licensed audio used by the mod.
• bin for a compiled component such as a custom external flight model, when one is genuinely required.

Not every package needs every folder. Match all referenced names and paths exactly, give units and other definitions unique identifiers, and never copy protected files from an official module into a release.

A practical DCS mod development workflow

A reliable workflow keeps editable source material separate from the release package and tests that package through the same Saved Games path players will use.

1. Define the scope and dependencies. Decide what players should see or do, which DCS units or maps it uses, and whether another module is required. Declare a dependency instead of quietly copying assets from it.
2. Create a unique project structure. Use an unambiguous mod name and unique internal identifiers. Keep source files such as layered images, modelling scenes and uncompiled code outside the distributable folder.
3. Build the smallest working prototype. Get one unit, skin, script or mission feature loading before adding variants. For mission-based projects, follow our practical Mission Editor workflow for units, triggers and scripts rather than editing a packaged mission blindly.
4. Add production assets and code. Export models to a format DCS can read, convert textures to suitable game-ready formats and keep Lua modules narrowly scoped. A livery's description.lua must map the actual model material names to the supplied texture files.
5. Register and install the package. For aircraft and technology mods, create a valid entry.lua and place the finished package under Mods\aircraft or Mods\tech. Our DCS Saved Games folder and installation guide shows the player-side layout your archive should reproduce.
6. Test without development shortcuts. Launch DCS with only the release files installed. Check the Mission Editor, unit selection, controls, textures, sounds, cockpit functions and multiplayer behaviour where applicable. Inspect Saved Games\DCS\Logs\dcs.log for Lua tracebacks, missing files and references to the mod's name.
7. Package the correct folder level. Open the final archive and verify that extracting it does not create an extra nested directory such as YourMod\YourMod\entry.lua. Include concise installation instructions, dependencies, a licence, known limitations and the DCS build used for testing.
8. Retest after simulator changes. Lua interfaces, model handling, protected resources and compiled integrations can change. Use our DCS mod compatibility and update-testing checklist before publishing a revised package.

Avoid modifying the main DCS installation unless a feature cannot work from Saved Games and you understand the consequences. Core-file mods are more likely to be removed by repair or update operations, conflict with other changes and fail multiplayer integrity checks.

Why is my DCS World mod not loading?

Most DCS mod loading failures come from the wrong profile folder, an extra directory level, a Lua error or a missing dependency. Check these causes before rebuilding the project:

• The mod is one folder too deep. DCS must find files such as entry.lua at the level expected beneath the mod's named directory.
• You used the wrong Saved Games profile. Multiple DCS profiles can remain on one PC. Confirm which profile receives the active dcs.log.
• You expected it in Module Manager. Community packages do not necessarily appear there. Aircraft and objects are normally confirmed in the Mission Editor or role-selection interface; liveries appear against their matching unit.
• entry.lua stopped at a syntax or API error. Search dcs.log for the package name, Lua tracebacks and missing paths. One failed statement can prevent the rest of the package from registering.
• The livery uses the display name instead of the internal unit name. The directory must match the unit identifier DCS expects. Restrictions inside description.lua can also hide a skin for some countries.
• Textures or models were not mounted correctly. Check file names, material mappings, export settings and resource paths rather than repeatedly converting the same source image.
• The mission references content other players lack. Custom units generally have to be installed by the relevant clients and server, using compatible package versions.
• A script replaced a shared file. Integrations that use files such as Export.lua should preserve existing entries instead of overwriting the whole file.
• Multiplayer rejects the package. Moving files into Saved Games does not guarantee acceptance; server integrity and scripting policies still apply.

Can you create a full aircraft mod for DCS World?

Yes, but a genuinely standalone flyable aircraft is a software and art project rather than a simple Lua edit. It requires an external and cockpit model, animations, textures, control bindings, avionics and systems logic, sounds, damage behaviour and a flight model that behaves correctly across the aircraft's envelope.

Some community aircraft reuse a permitted cockpit or depend on an installed official module. That reduces the workload but must be stated clearly, and the dependency's files must not be redistributed. A custom external flight model may use compiled native code, which adds aerodynamic modelling, debugging, multiplayer synchronisation and update-compatibility work.

Public community modding also does not provide every interface or protected asset available to an authorised DCS third-party developer. If the aim is an official-quality commercial module, treat a community aircraft as a prototype and proof of capability—not as a way to bypass protected APIs, licences or module ownership.