Individual Game Settings
You'll find this page under Settings → Game Settings. Use it to set per-game limits for playtime, idling, card farming, and achievement unlocking. Select a game from the list, then configure its limits below. Every limit set to 0 means unlimited.
Enable Only show games with custom settings to filter the game list down to just the games you've already customized.
Playtime
These limits apply everywhere a game can be idled: manual Playtime Booster, Auto-Idle, and the Achievement Unlocker all respect them. Card Farming does not currently check this limit — a game you're farming cards for keeps accumulating playtime regardless of any max playtime set for it, unless something else (Playtime Booster, Auto-Idle, or the Achievement Unlocker) is also idling it.
Max Playtime (All Games)
Automatically stop a game, and remove it from every queue, once its total playtime reaches this many minutes. Applies to every game unless it has its own override below.
Max Playtime
Same as above, but for the selected game only. Overrides Max Playtime (All Games) when set.
Idling
These limits only apply to manually and automatically idled games. The Achievement Unlocker has its own separate cap below; Card Farming has no idle-time cap of its own.
Max Idle Time (All Games)
Set a default maximum idle time (in minutes) that applies to all games. Individual per-game limits take priority over this value when set.
Max Idle Time
Set the maximum idle time (in minutes) for the selected game. SGI will stop idling this game when the time limit is reached, overriding the value above.
Achievement Unlocker
Max Achievement Unlocks
Set the maximum number of achievements to unlock for the selected game. SGI will stop unlocking and remove the game from the Achievement Unlocker queue once this limit is reached.