The lance base is most likely the 3rd base defense you will research.
The lance base is one of the important buildings which can be built to defend colonies.
The higher the level the more powerful the base becomes.
- research facility level 4
- high energy facility level 4
- Weapons facility level 4
- 125000 gold
- level 20 commander
The higher the level the more damage the base does EACH round.
(I believe, but am not sure, that each level adds 1 capital size Lance equivilent to the damage)
Damage is also based on the best lance you have developed. In order they are:
- Enhanced Lance
- Solar Lance