If you want to experience a real doomsday, World Survival mode is the best place to go. 

I. How to Unlock World Survival?

　　30 days after a new server opens, the system automatically unlocks the Meeting Hall and “World Survival” mode will be unlocked as well. 

II. What is World Survival mode?

　　In “World Survival” mode, survivors could take over World Resource Spot or Bio Mining Zone to gain Survival Experience to progress Survival Level. Survival Title, which offers extra power to your army, will be granted at specific Survival Level. Top 100 Survivors will make contributions to increase the World Level to reduce the losses of troop on the map. 

1. How to gain Survival Experience?

　　(1) The system grants you Survival Experience when you have Bio Mining Zone or Resource Spot occupied for every 30 minutes. Higher level Zones or Spots grant more Survival Experience. 

　　(2) Attacking other players who is occupying Zones or Spots is another way to gain Survival Experience. Succussful takeover would reduce your opponent’s Survival Experience. 

　　(3) When your Population Level reaches Lv.8 or above, the system will grant Survival Experience. 

2. What is Survival Title?

　　Survival Title will be granted at specific Survival Level and also offers extra power to your army. Some High-End Titles will be limited to a few players who have relative high Survival Experience. 

3. What is the cap for Survival Level?

　　(1) Survival Level capped at Lv.999

　　(2) Once you have reached Lv.999, the system will take 10% off your current Survival Experience at 00:00 each day. 

4. What is World Level?

　　(1) At 00:00 each day, the system will convert Top 100 Survival Level;

　　(2) into World Level for the next day;

　　(3) The higher the World Level is; the more troop a commander saves on the map. 

III. What is Combat Drill?

　　1. Once World Level reaches Lv.1, the system unlocks Combat Drill mode;

　　2. Once a commander possesses the Survival Title “Mercenary”, the player is allowed to participate. 

　　3. Obtain Reputation and redeem for rewards from Shop. 

　　4. Player could participate Combat Drill at every Tuesday Midnight.