As long as you have ANY source game excluding deathmatch, you can play. But please note that you will usually need a lot of source games to see other people's props that come from other source games.
Well for most of them to work you need css, and hl2 dm
Try reinstalling the game, especially TF2 since it is the game containing that file. HL2.exe happens to be the main executable of the game. In other words, it's a necessity.
You need a source gam like HL, HL2, TF2, or Left 4 Dead. If you have one and it still won't work then you should ask elsewere
Many people believe it is best to get CS:S due to the many props used in the game. Playing on a HL2 map in gmod is very enjoyable, because you can use the physics gun on your enemies. Most people choose the cheaper game. HL2 Deathmatch is free.
no it cost 10 bucks on steam plus u need 1 source game like counter-strike source or half-life 2 there are others but these and day of defeat source are ones you should get first css=$20 hl2=$20 dods=$10 gmod=$10 total=$60 you dont need all I suggest getting Team Fortress 2 bundle.
In my Case, HL2.exe didnt end when it should have! It caused the game to not open because it was already open! TO solve: Go to Task manager Then Processes Then if HL2.exe is running, end it! Load gmod and have fun
Yes, garry's mod will work with portal and you will have all the HL2 stuff.
yes infact all hl2 mods use source and css has all of it so its okay bro :P
Eh? how is it possible to have HL2 installed on you computer but not on steam? The short answer is no. But you're welcome to try clicking "add a game in the bottom left corner of your library and adding half life 2 as a game.
No, left 4 dead will only work for left 4 dead mods.
If you are running on Windows Vista or higher, please run the program as an administrator. Also, make sure you are launching the game through Steam, nothing else will work! If none of these work, I highly recommend you uninstall, redownload, and reinstall the program through Steam instead of fiddling around with the settings and messing up your whole Steam Engine.
in what way?