Where can I download it

[mesalin]

I use android my question is where can I download call of champions I didn't found it ...

[Waug]

It's not publicly available, it's still in alpha, but beta soon, keep an eye on that in the announcement thread

[Schnitzel]

This should answer any questions you have.
http://spacetimestudios.com/showthread.php?219986-Call-of-Champions-Question-Answers