It seems that a lot of sites are being affected by this Cloudfare issue, is changing the login password safe enough to safeguard my account? Because I do have a couple of alt-coins investment with Crypto-Games.net.

And I do understand that Cryptogames.net does have some sort of withdrawal security protection, any withdrawal of funds made from the user account, there will be a withdrawal confirmation email sent to the user registered email on the site before the funds can be withdrawn. This function do comes in handy now during this type of issue