I am building a new gaming pc that will be used in part for FSX, other steam games / software, and possibly X-Plane or P3D if I decide to switch. I am wondering how to organize the installs of the flight sims, their addons, and the other games onto one or more storage devices. I do not expect to fill more than 1TB of storage over the life of the computer. Should I have one SSD for all flight sims? Should FSX go on a smaller SSD independent of everything else? Should addons be on the same drive as the sim? Can the sims go on the boot drive?

Personally, I like to keep things tidy.. so a separate SSD for the OS.

256 GB should be plenty, 128 will do initially.

The flightsim stuff can all go on the second SSD.  500 GB+

Then a HDD, 2TB or such for data.

On 8/4/2018 at 6:35 PM, av8or said:

I do not expect to fill more than 1TB of storage over the life of the computer.

I think you may be surprised at just how quickly you'll use up just 1TB of total storage (even with frequent housekeeping)! Bert's advice is good but I'd say that having the OS, or your games, on their own dedicated SSD (whilst perhaps neater) makes virtually no difference to performance. There's no problem having your sim on the same SSD as the OS provided you're not getting close to full drive capacity.