100 free spins - the most avid player never dreamed of such a thing! However, such a promotion is arranged from time to time by slot machines. The user received as many as 100 free spins, subject to the following conditions:
deposit for a specific amount;
playing certain slot machines online;
limited time promotions for online slot games with free spins.
The number of spins for such promotions depends on the size of the deposit. One gambling club, for example, gave out 10 free spins for deposits equal to 10 euros. For 100, respectively, the player received, 100 is the maximum. Moreover, free spins were given only on certain gambling games and slot machines.
Such an offer is beneficial if you were going to gamble, slot machines even without a promotion. An extra bonus here won't hurt you. Whether it is worth making large deposits specifically for the sake of free spins is a moot point. Online gambling games are absolutely unpredictable. It is not known whether the free spins will give some kind of jackpot, but the received winnings will need to be wagered. It is impossible to withdraw even the deposited amount without a certain wagering. It is possible that playing on gambling machines that do not fall under the promotion will turn out to be more interesting and profitable.