-mod:Play_insert option. e.g. Multiplayer -nm -show_err

your game library. You should see RTW or BI or ALX depending on the version you have. For demonstration purposes, I am using Portal (the only steam game I have).

Right click on your RTW game and select Properties

In case the launcher does not work, and for some reasons we didn't manage to help you resolve the issue, please follow those instructions.

Running RSII through Steam is a hassle but not impossible. Several Beta Testers have successfully ran the game through Steam and have imparted their knowledge to the rest of the team so that Steam users are able to enjoy the game as well. To run RSII on Steam, it involves adding some extra lines of code to your game library and a bit off a different installation.

First, make a folder on your desktop. Install RSII to that folder. Once that is done, drag or cut and past all the files in the folder to your C:\Program Files\Steam\SteamApps\common\rome total war gold or whatever other version of RTW you may have.

For those who have Vista or Windows 7, the directory should be:
C:\Program Files (x86)\Steam\SteamApps\common\rome total war gold or whatever other version of RTW you may have.

Once that is installed, open your steam launcher and browse to

INSTALL ROME JONATHAN!!!