Games you can Idle - GreYzZ/Steam-Idle GitHub Wiki

Here is a little list of the games you can idle.

• CSGO GameID: 730
• TF2 GameID: 440
• DOTA2 GameID: 570
• L4D2 GameID: 550
• Portal2 GameID: 620
• PayDay2 GameID: 218620

These are some samples. You can Idle any Game you OWN. Don't need to be installed just in your library. For the most free2play Games you just need to type in the ID.

To find out what ID your Game has try https://steamdb.info/search/ And type it in