The "Appian Way Shuffle"
(Nicks "limited lobotomy" or alternate 'Full Lobotomy': and "Redist. Reruns" together!)
Some behaviour including Freezing at Launcher or Title, crashing and other types of graphical artifacting may be solved by eliminating some basic Rome 2 Appdata files, and the Steam files that may be telling R2 that everything is hunky-dory when it isn't!
(Keep in mind that you should have User Account Control OFF or you may run into some problems )
Try going to C:\Users\YOURUSERNAME\AppData\Roaming\The Creative Assembly\Rome2 and delete the following folders:
Delete entire R2 folder
(If you can’t find Appdata or the R2 files, they may be hidden and Ctrl+F and search should find them. Alternatively you can go to control panel and globally make all files visible.)
Exit Steam, then go to C:\PROGRAM FILES (X86)\STEAM and delete the following:
Reboot, restart steam and let it rebuild its files (which it will). Now right click on your game in the Steam Library list. Choose 'Properties'>'Local Files'>'Verify Cache Files' This may take a few moments.
See if you can play when complete. If not proceed with the next step.
Go to the following directory:
- C:\Program Files (x86)\Steam\steamapps\common\Total War Rome II\redist
Here you will find these files:
(These will show an option to reinstall or repair, although one of them 86-90 may not show anything, this is normal.)
Then, go next door to C:\Program Files (x86)\Steam\steamapps\common\Total War Rome II\redist\directx
Then restart Steam (it will update) and now verify cache files for Rome2 again. Play.