If this is a backup of the Steam version, it may require the Steam client to be active to launch. The Matrix Games/Slitherine versions often come as a single executable installer within the zip. Current Availability
Most versions of this zip contain a standalone installer or a "Ready-to-Run" folder. If it's the latter, ensure you have the necessary DirectX 9.0c runtimes installed, as the game engine relies on older libraries. File: Scourge.of.War.Waterloo.zip ...
Originally released in 2015, the game focuses on the climactic Battle of Waterloo. Unlike standard RTS games, it emphasizes the "Chain of Command" system, where you take the role of a specific commander (from a Brigade leader up to Napoleon or Wellington) and must manage the delays and uncertainties of 19th-century battlefield communication. If this is a backup of the Steam