We check this website, now openupgames.ru is up and dont blocked for our system and other users of the Internet.
So, answer to question: Is openupgames Down Right Now? - NO! openupgames is up!
If you have problem with access to site openupgames, and domain openupgames.ru is not avalible.
Clear browser cache and/or try other web browser
(Chrome, Firefox or Safari).