Basically, it requires Directx 9 which apparently is incompatible with Windows 10 (although it obviously wasn’t for the last couple of months!). I have been running Rome Total War on Windows 10 quite happily since August.
SHOGUN: Total War ™ – Collection The game does work on Windows 10 – battles, videos, throne room – everything. You might be interested: FAQ: What Country Is Pete Sampras From? Does Shogun Total War work on Windows 10? Total War: Rome II Emperor Edition Will not Launch on Windows 10 - Total War Forums.
Rome: Total War needs a GPU capable of running DirectX 9. Your PC will need a graphics card thats as powerful as a GeForce 9300 GE/Radeon HD 3200 and it should be paired with either a Athlon 64 3200+/Pentium 4 2.8GHz CPU to match the Rome: Total War recommended system specs. I am running mine on it According to SEGA”To run Napoleon Total War your computer must meet the following system requirements: Computers with high-performance hardware will provide the best game performance.” Can I play Rome Total War on my laptop?
If you have windows 10 and are working from clean install Scroll down and find your d3dx9_24 through d3dx9_43 files, highlight, right click, copy, paste into Rome main folder. If you have a working copy of Rome and upgrade, it will still work. Rome: Total War Windows 10 Fix is a mod for Rome: Total War, created by SANDMAN37.