Rome Total War 2 is a historically themed real-time strategy game developed by The Creative Assembly and released in 2013. The game requires a minimum of 10 GB of available hard drive space to install, but the recommended requirement is 25 GB.
In terms of RAM, the game requires a minimum of 2 GB of RAM, but the recommended requirement is 4 GB. Additionally, the game requires a graphics card with at least 512 MB of VRAM, with the recommended requirement being 1 GB of VRAM.
The base game itself is 7.9 GB in size, but additional downloadable content such as the Caesar in Gaul and Hannibal at the Gates expansion packs require an additional 4 GB of hard drive space each. As such, if you were to install the game plus all of the DLC, you would need a minimum of 25 GB of hard drive space.