Yes you can join all challenges for free, however you need to confirm your participation by joining the challenge and confirming your cart.  You can sign up 7 days before the monthly challenge starts until 7 days after it started. The challenges are starting at the 1st of the month.

2-3 days after finishing the challenge we will notify the winner(s) and add the credits to his/her account(s)

Yes, every ONDA player can sign up for our monthly challenges

Yes you can! You can join all the available challenges at the same time.