Company Of Heroes Opposing Fronts Product Key And Retail Code Guide

No. Some very early European retail versions used a 16-digit code for the internal Relic Downloader. These no longer work. You will need to contact Sega support or buy a new copy.

If you have an old physical copy, you can often transition to the modern version. Frequently Asked Questions - Company of Heroes Guide - IGN

With Steam, one key = one account = unlimited installations (only one active at a time).

If you bought a physical disc but lost the manual, check old email accounts for order confirmations from retailers like Best Buy, GameStop, or Amazon (2007–2012 orders sometimes included the key in the email).