Basically, it's just an improve version of crash game. It's a fun game if you've experienced trading shitcoins before as what LM said.
It doesn't attract many players mainly because of its dull animation.
First of all, the HODL game is just a moderated version of crash game. I won't address it as an improved version. And it is failing to attract the bettors for it's system. Gamblers usually like to see the flow of the profits after placing a bet. They have made it different by doing retouch with trading vibes. Crash is one of the most played and popular games in all other casinos. At BetHog, no one is playing the HODL game for the different system. Personally, I didn't like it as well.