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