Check out the humble bundle. You can find very cheap bundles of steam/origin games and the money goes to charity!
Humble Indie Bundle was created in 2010.
Yep, what shall we enter in place "Cd key" when making an account in COH ? I mean a Humble Bundle version of COH.
Microsoft Children's Miracle Network Games Bundle happened in 2008.
Yes you can, you import and add non-steam games to your Steam library. From within the library you can launch and run any games, although 'Steam achievements' will only be available for Steam enabled games.
Because I know that you will be able to do that on humble, but otherwise....
They don't. Only games distributed and managed by Steam can make use of the Steam API.
Yes, some. Not all of them can be activated on Steam. See the related links for a list of the games that can be activated on Steam and for the instructions on how to activate a game on Steam.
Yes, you can import and add non-steam games to your Steam library. From within the library you can launch and run any games, although 'Steam achievements' will only be available for Steam enabled games.
Microsoft Children's Miracle Network Games Bundle was created on 2008-10-07.
The Games Bundle provides a wealth of different information on all different kinds of games such as stats, strategies, and different types of cheat codes as well.
A bundle version is a pack where you get the game, including perhaps prequels, other games from the same manufacturer or other games similar to that one