Not game over but is very difficult moment for bitcoin. Because it's price so decrease but do not worry .. the wait that will last moment, he will win. EVERYTHING IS have hard AND GOOD time. Hopefully the crypto market will rise very quickly. when I Frist see Bitcoin , BTC was $600. then it's goes down $250. but after few years it get increase $4000. so don't panic. just wait
Last year was too difficult for Bitcoin. I guess, 2019 will be better. At least, BTC will be not falling like it used to do before. I suppose that it can raise and even reach 5-6 thousand.