While there is no official "free CD key" for the retail version of Hellgate: London
The most authentic way to play is through . This is a fan-made, non-profit project that has successfully revived the multiplayer component of the original game. Legality: You need a copy of the original game files. Cost: The mod itself is free. hellgate london cd key free
Mention if you prefer a or multiplayer experience. While there is no official "free CD key"