The cost of buildings has been decreased as well, allowing for a quicker start of the game. The food limit and the upkeep requirements, which dealt a penalty on resource gain when too many units were active at the same time, have both been increased slightly, leading to the ability to mobilise somewhat larger and more powerful forces. The expansion fine-tunes the gameplay of the main game rather than changing it. Warcraft III: The Frozen Throne is the expansion pack for Warcraft III: Reign of Chaos, a real-time strategy video game by Blizzard Entertainment. Download Warcraft III: The Frozen Throne for free on PC – this page will show you how to download and install the full version of Warcraft III: The Frozen Throne on PC.