Title: Warning DRM Locked Game
Review: These games have a DRM system that does not allow you to sell your used game. Do not purchase a used game because you will not be able to activate it. Unfortunately software sellers are not required to post on the outside of their box that the product is locked by a DRM system. If they did I would never buy it. There is one possible workaround if you want to sell your game or purchase a used game. When you first install the game create a unique user ID in the Steam DRM control system. Activate the game play it and when you are ready to sell it give the UserID to the buyer as well. If you want to purchase a used game make sure you get the Steam user ID that goes with it.
Is this product review negative?