The Campaign is a Single Player mode in World War Online, where players battle against NPC (Non Player Character) Units. There are currently 50 Campaign levels, each getting progressively more challenging. Each level has varying WWO-Influence and Iron rewards that can be gained by defeating the Level. To defeat a level the player must kill all enemy units before Wave 50.
The mechanics of the Campaign are the same as Multiplayer battles with the following exceptions:
- Units do not need to be in any specific district to fight in the Campaign
- Completing the Campaign is very much worth it as the total reward for completing it is 1.196.856 Iron along with 452.500 Experience and multiple Supreme Units every 5 Levels.
Each level has a certain weak-point that can be exploited by having a good understanding of the enemy Units.