What is World of AI and how do I install it in FSX?
World of AI is a freeware system that adds scheduled, computer-controlled airline traffic to Microsoft Flight Simulator X by installing AI aircraft models, liveries and flightplans. To install it in FSX, you need the WOAI installer, one or more airline packages, the correct FSX folder, and traffic density turned up in the sim.
What does World of AI add to FSX?
World of AI adds computer-controlled aircraft that taxi, depart, arrive and park on schedules, so FSX airports feel alive instead of empty. Each package usually represents a specific airline or traffic set, which means you install several packages if you want broad coverage.
These are AI aircraft, not normal add-on aircraft. They are built to be light on performance and are often not suitable for hand-flying from the cockpit. If you want the background first, our overview of freeware and payware AI traffic for FSX explains what AI traffic changes in the sim and why people install it.
| WOAI part | What it does | Where it ends up in FSX |
|---|---|---|
| AI aircraft models and liveries | The traffic aircraft you see parked and flying | SimObjects\Airplanes |
| Traffic files | The schedules that tell those aircraft where and when to fly | Scenery\World\Scenery |
WOAI is normally additive. You do not need to remove default FSX traffic first, although running several AI traffic packages together can create duplicate airlines or busier aprons than intended.
How do you install World of AI traffic in FSX?
You install World of AI by setting up the WOAI tool, then feeding it airline packages and pointing it at the exact FSX installation you use.
- Install the WOAI utility. Get the World of AI installer for FSX and install it first. This is the tool that reads traffic packages and places the files in the right FSX folders.
- Download traffic packages. Then get one or more WOAI AI traffic packages. A mistake we see constantly is installing only the utility and expecting traffic to appear. The utility does nothing until you add packages to it.
- Point the installer at FSX. Run the WOAI installer and choose the root FSX folder - the one containing
fsx.exe. In FSX: Steam Edition that is usually insideSteam\steamapps\common\FSX. If the installer auto-detects an old boxed-FSX location, browse manually instead. - Install each package. In the WOAI installer, choose the option to add or install a package, select the downloaded package file, and let it copy the AI aircraft and traffic files into FSX. Repeat this for every airline package you want.
- Turn up the correct traffic slider. Start FSX and raise Airline traffic density above zero. For most WOAI airline packages, this is the slider that matters. If you installed GA packages, raise General aviation traffic density as well.
- Test at the right place and time. Check a busy airport at a plausible time for the airline you installed. WOAI traffic follows schedules, so a quiet regional field or the wrong hour can make a good installation look broken.
If FSX is installed under Program Files or Program Files (x86), Windows permissions can get in the way. Running the installer with administrator rights avoids a lot of half-installed packages.
Can you use World of AI in FSX: Steam Edition?
Yes, World of AI can work in FSX: Steam Edition if the installer writes to the Steam Edition folder rather than an old boxed-FSX path.
The usual problem is not compatibility but detection. Older tools may look at the wrong registry entry if boxed FSX was installed before, so always confirm the target folder before you install any package.
Why is WOAI installed but no aircraft show up?
If WOAI appears to install but no traffic shows, the cause is usually a wrong install path, traffic density set to zero, or testing at the wrong airport and time.
- Wrong folder: Make sure the AI aircraft were added inside the FSX installation you actually use, not a leftover boxed-FSX folder or backup copy. Check for new folders under
SimObjects\Airplanesand new traffic files underScenery\World\Scenery. - Traffic slider at 0: Airline traffic density must be above zero for airline packages to appear.
- Too few packages: One airline package only generates that airline's routes. You will not suddenly get heavy worldwide traffic everywhere.
- Wrong airport or time: AI traffic is schedule-driven. Try a major airport served by the package you installed and move the sim time by a few hours.
- Permissions problem: If the installer seemed to finish but hardly any files were copied, rerun it as administrator.
If you need a deeper fault-finding checklist, our separate guide on fixing WOAI traffic that is not showing in FSX covers the usual failure points in more detail.