I want to creat a giveaway,but i cant find the game in list

You can't make a giveaway of a free game. You may only drop it on the forum

It was removed cause people gave away the bundle key for episode 2 (if i remember correctly) which didn't include the full game.

Edit to be more clear:

Steam sells the full package, the keys that were given away were not the full package

This one isn't allowed to be gifted on SteamGifts, because of how the bundle keys for it work. Before it was released on Steam, the game was bought in four pieces, and the bundle keys released for it reflect that. However, in the Steam store, you can only purchase the full game. This obviously causes a problem.