It uses an optimization formulation of n-person non-co-operative games as described in the paper "An Optimization Formulation to Compute Nash Equilibrium in finite Games" presented by the author, available athttp://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5397970. The method is capable of giving one sample Nash equilibrium out of probably many present in a given game. The screenshot showing GUI has been developed on the code using it as dll and VB.Net.