No, the game is coded using the Source engine, you must have a source game installed in steam to be able to run this old source mod.
no because garrys mod requires that you have a game that uses the source engine
Well, in the steams list of games which you can use on garrys mod it dosent show Half life Source. But if you type in gman squad on youtube you can see their playing the storyline on Half life Source. I asked them the same question and they said yes, you can play the storyline if you have garrys mod and Half Life Source. I dont know for sure because i have not yet tried it.
Yes, In "Offline Mode".
Yes because you can't play Garry's mod without steam.
It depends on what the player does i guess But its mostly what Half Life 2 is rated If the player has counterstrike source also installed the content (Characters and guns) gets transferred to garrys mod so they can play around with it in the game, it depends on a few factors (1) what will they do? (2) what other games that rely on the source engine do they have installed? (3) what do you think is suitable for them in garrys mod, they are only limited by their imagination, in Garrys Mod you can build pretty much anything, and i mean anything
Yes, you can play online multiplayer.
Not necessarily. If you own absolutely no Source games at all, then you can buy it, and you can then run Garry's Mod. A lot of Garry's Mod addons require Counter-Strike Source though, so it's recommended, not required.
yes if you have a legal copy from steam or from a shop you can i have purchased CS:S and Garrys mod together off steam so i can play Gmod.
goto droay two dirr
Yes. It is a multiplayer game.
gmod 9, yes gmod 10-no
Did you pirate garrysmod? I've heard of a trick garry put into garry's mod. If not do not panic, go to the steam support section of their website and post a query.