Multiplier is a bonus feature available on some good slots at online casinos. Usually you will get a multiplier during the free spins and that means that all profits received during these free spins are multiplied by a certain factor. If you get a 2x Multiplier your winnings will be multiplied by 2. You will win €200 if you have a 2x Multiplier and win €100. Some games can have up to 100x Multiplier and there you can really win big if you’re lucky!