Sorry to freebitco for saying this, but honestly, for me personally, I think the multiply bitcoin is one of the worst game I played on freebitco, I've played this game several times and each of those, I ended up losing all my bitcoins instead of actually multiplying it as it is in the game title😂..
Can't remember when I played it last, and I don't think i wil ever, I will rather bet with my bitcoin or join the lottery, I prefer those to multiply btc.
That's how gambling goes, sometimes you win and sometimes you loose. Don't forget that the house edge on freebitco.in is 5% (while most casinos have 1%). You also earn RP and sometimes they do promotions where you earn 3x to 5x the amount of RP so it probably levels out.