The battle-and-rest cycle
Stamina is the pacing system for the automatic fight loop. Your hero battles and collects loot during the active stretch, then pauses to recover. Once rested, the cycle continues. This makes the game suitable for occasional check-ins instead of constant inputs.
If you want to make a meaningful choice during a check-in, inspect your recent loot and equipment. The rest period is a natural moment to think about gear and elemental affinities before the next stretch of fights.
Keep it on your desktop
The game can run in a compact window. An optional always-on-top setting keeps it visible while you use other applications. You can leave that setting off when you would rather give another window your full screen.
What works offline?
PvE play remains available without a network connection and follows the same stamina pacing. PvP, trading, and the leaderboards are online features. If one of those does not load, check your connection before assuming the combat loop itself has stopped.