Yes, multihand accumulation blackjack tournaments with up to 100 rebuys. But they also have some free-rolls, meaning the first entry is free, the rest is buy-in.
I have suggested to the support, and I am suggesting now to Ms. Sloto too, to make the blackjack tournaments "countable" and more skill inclined by not shuffling the decks after each hand and allowing at least a 75% penetration into the decks so good skilled players can have a better winning chance. Only for tournaments.