Hunters is localized into 12 languages including Russian.
But hackers sent all messages to Russian users & tourists who came in Sochi in English in order to make them scared.
"The decision of Russian Government will cause the serious violations of human rights," the organization said in a statement.
"The decision demonstrates the prejudice against the groups of citizens."Russia has come under frequent scrutiny for its LGBT rights record, including its crackdown on “propaganda of non-traditional sexual relations" ahead of the 2014 Winter Olympics in Sochi.
The International Olympic Committee confirmed 118 athletes, or almost one third of the Russian team, will be bannedfrom the 2016 Rio de Janeiro Summer Olympic Games due to blood doping.