Dark King: Forbidden Riches · 5. Best Halloween Slots · 1. Game Type. Slots. The game boasts simple rules. Halloween Jack · 4. Mad 4 Halloween. No real money is involved. Roll as many times as you want and see if you get scarily lucky. Grab a bonus and face off against Michael Myers! More Halloween Slots to Play Online · Spooky Wins – Play at Las Atlantis · Moon Bitten – Play at BetUS · Dr. Return to player. Acula – Play at SlotsandCasino. %. Designed by Espresso Games, the Mad 4 Halloween slot is a Halloween themed slot machine that is available to play online for free. Look out for winning combinations. This title was released on 20/10/ by Espresso Games provider and it features simple gameplay and some exciting bonuses and neat graphics. Just select your bet size and click 'spin' to start gameplay. Rise of the Dead?. House of Doom · 2. This is a simple spooky-themed slot machine game. Halloween Slots - Play Online for Free or Real Money. Helloween · 3. Control Halloween Slot Machine is simple and straightforward. Our Halloween slot game review looks at this popular Microgaming title, from reel mechanics to payouts. Defeat the witch and go play a prank on your neighbors in Mad 4 Halloween, a fun and familiar video slot game carefully designed by Espresso. Try Mad 4 Halloween slot online for free in demo mode with no download or no registration required.