Game's life

So, i've been thinking of buying this game, because it seems VERY fun, but i'm worried about it's current state, i don't know how many people are playing it, since the site that counts that still didn't add this game's stats, and i really don't wanna pay money on a game that might be dead, or die soon, so, to people that play this game, is this game's current state healthy? And will it last?