You will have to buy Half-life if you want to be able to play ESF:Final when it is released.btw should I buy HL, cuz ESF:Final is not released and has no release date...
Half Life 1 uses the Gold Source engine. The Source engine was developed later for Half Life 2, by updating the old Gold Source engine. They are 2 different engines all together.ok, thanks for the quick answer because I'm just about to buy HL 1
BTW don't they both run on source engine? or is HL 1 VALVe
ESF itself costs nothing. However, in order to play it, you need to have a legal copy of Half-Life associated with your Steam account.will be ESF available to all for free? or only for those who have steam account?