1. Choose how to survive: jump into solo runs with your saved survivor or spin up a fresh multiplayer session and drop in with friends on the same shared stash. 2. Your world remembers everything: characters keep their exact position, gear, and appearance after quitting, so you can close the game mid-raid and resume from that precise spot later. 3. Deep looting loop: scoop items off the ground, crack open containers, stash valuables in backpacks, and move equipment between storage spots without losing sync—every action updates instantly. 4. Gear management that matters: equip or unequip weapons and armor on the fly, watch damage states refresh in real time, and rely on coalesced snapshots so your HUD never lags behind the action. 5. Character customization baked into the flow: tweak hair, hats, colors, and more before launching a new run, or skip straight to continuing an existing build when you’re eager to fight. 6. Secure profile service: the built-in auth backend issues tokens so logging in on any device hands you the same survivors, progress, and unlocked options immediately. 7. Automated gameplay validation: scenario suites actively simulate looting, backpack handling, singleplayer persistence, and multiplayer reconnection to ensure those features stay solid with every update.