Because Blizzard automatically updates the game to the Reforged client through the Battle.net app, finding the standalone 1.31 installer requires looking at community-archived sources. 1. Find a Reliable Archive

🖥️ True native support for modern 16:9 monitors without stretching the image.

You will typically need to download a standalone installer or a pre-patched game folder. Ensure you are downloading both the base game (Reign of Chaos) and the expansion (The Frozen Throne), as version 1.31 combines them into a single executable. 3. Install the Game

🛠️ Massive upgrades to the World Editor, lifting limits on doodads and script sizes.