Ok if i remember correctly it's not going to be a freeware. But considering the efforts that havoc has put into this project, it's definitely worth to buy.

Dear Fans, to celebrate our 500.000 downloads,
Evhacon 2 is now FREE TO PLAY on Amazon Underground!
HD Version: https://www.amazon.com/gp/product/B071FKSVG2
LD Version (Optimized for lower devices): https://www.amazon.com/gp/product/B0719TXFJN