After logging in for 7 consecutive days and collecting the Day 7 reward, the counter resets and starts at Day 1 again.
Daily Rewards old:
Daily Rewards new (after Freemut / Quarantined Zone update):
Daily reward list:
Day 1: 10 15 x Scrap Metal
Day 2: Magnum (Rusty) Pump Shotgun (Rusty)
Day 3: 3 5 x Bandage
Day 4: Motorcycle Helmet 20 x Scrap Metal
Day 5: 10 x Wooden Plank M16 (Rusty)
Day 6: M16 (Rusty) 3 x First Aid Kit
Day 7: Preparatory Pack