You have a key. You are trying to activate it. Here are the classic error messages and fixes.
| Error Message | Meaning | Solution | | :--- | :--- | :--- | | "Invalid Product Key" | You mistyped it. Or the key is for a different game (e.g., original COH). | Double-check 0 vs O, 1 vs I, 5 vs S. Try activating in Steam. | | "Duplicate CD Key" | This key is already registered to another Steam/THQ account. | The seller scammed you. Dispute the charge. No fix. | | "Region Locked" | The key is from a specific region (e.g., Eastern Europe) and cannot be activated in your country. | Use a VPN might work, but violates Steam ToS. Better to get a new key. | | "Game Requires Original COH" | You are using the original 2007 installer, not Steam. | Ignore. Use the Steam activation method instead. | You have a key
A: No. Tales of Valor is the second standalone expansion. Its product key is different and will not unlock Opposing Fronts content. A: No
History lesson: In 2013, THQ went bankrupt. Sega purchased Relic Entertainment and the Company of Heroes IP. Simultaneously, GameSpy’s online servers shut down in 2014, making the original disc versions unplayable online. 1 vs I
To save the community, Sega/Relic performed a "free migration." This is the most important fact in this article:
If you own a legitimate physical retail code for Company of Heroes: Opposing Fronts, you can redeem it on Steam for a free digital copy of the "Company of Heroes: Opposing Fronts (Steam Edition)."