引用自 YeRoN：

引用自 Imperial Waffle：

Where do you type this stuff, I don't understand?

If I understood the question correctly,

<Path> \ steam-idle.exe "<appid of game>

can be entered and executed in cmd.
(ex: If you type "D: \ Program \ idle_master \ steam-idle.exe 54029" in cmd, in that path, "CS: GO" is idle)

引用自 MrL0G1C：

Worse than murder, don't do it, interpol will be on your case.

引用自 YeRoN：

I know

<path>\steam-idle.exe" <appid of game>

and it was success.

But only idle one game.

I want to making idle many games (~50 games)