Steam

Steam games and applications often require a running Steam client in order to run. This can be tricky when launching from the command line with juice run. That said many games do work and there's no harm in trying. There are three methods you can use to launch Steam games with Juice:

1. Activate the path to the game and create a Juice session
2. Launch the game from the command line with juice run
3. Place the Steam App ID in steam_appid.txt and launch with juice run
4. Close and relaunch Steam with juice run

Activate Path

Using active paths is the most convenient way to run applications that rely on a launcher like Steam through Juice. Any application launched from beneath an active path while a Juice session is current automatically uses the connected Juice GPU.

To launch all Steam games using Juice activate C:\Program Files (x86)\Steam:

juice session add-path "C:\Program Files (x86)\Steam"

To launch only specific Steam games through Juice activate the paths to those games, usually these are the directories immediately beneath C:\Program Files (x86)\Steam\steamapps\common. For example to activate 3DMark installed through Steam:

juice session add-path "C:\Program Files (x86)\Steam\steamapps\common\3DMark"

Launch with juice run

Games that allow launching without Steam, e.g. Cyberpunk 2077, can be launched with juice run without any extra steps. This is the easiest method if it works and you should try this first.

Place Steam App ID in steam_appid.txt and Launch with juice run

Games that report being unable to connect to the Steam client when run directly from the command line often run once their Steam App ID is placed in a file named steam_appid.txt in the same directory as the game executable. A game's Steam App ID is the six digit number shown on the game's UPDATES page in the Steam library, click on the gears icon (Manage) > Properties > UPDATES.

Close and Relaunch Steam with juice run

Games that won't launch with Juice by the above two methods might work when Steam is launched with juice run. Quit Steam completely and relaunch with juice run. After this anything launched through Steam will use Juice.

juice run "C:\Program Files (x86)\Steam\steam.exe"