Demotruk on 04 December 2009
They are called twins because they are both substitutes of each other. They both have more or less the same value curve. And yes, the last gen could also have been called 'triplets' by the same standard.
A game I'm developing with some friends:
www.xnagg.com/zombieasteroids/publish.htm
It is largely a technical exercise but feedback is appreciated.
