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UK8 Best Frankenstein Slots Ranked – Scariest Wins & Wildest Features
The best Frankenstein slots offer a fun horror-centric theme, bonuses, and big cash prizes. I have found a range of games that deserve to be called the best Frankenstein-themed slots.
Play for free or click on the links and open an account to spin for real money. In my opinion, these Frankenstein slot machines offer the most enjoyment and the biggest chances to give your bankroll a jolt.
| Rank | Frankenstein Slot | RTP% | Where to Play |
|---|---|---|---|
| #1 | Monster Manor | 97.30% | Visit Wild Casino |
| #2 | Freaky Frankenstein | 96.83% | Visit BetUS |
| #3 | Frankenslot’s Monster | 96.83% | Visit Super Slots |
| #4 | Frankenstein | N/A | Visit MyBookie |
| #5 | Mega Monster | 96% | Visit OnlineCasinoGames |
| #6 | Scary Rich | 96.70% | Visit Ignition Casino |
| #7 | Scary Rich 2 | 95.28% | Visit Bovada |
| #8 | Frankenstein’s Rebirth | N/A | Visit TrustDice |
#1 – Monster Manor
- Software: Woohoo Games
- Release Date: 2021
- Reels: 5×3
- Paylines: 50 fixed
- RTP: 97.30%
Monster Manor is a ghoulish Frankenstein slot game for online players. The RTP is a juicy 97.30%, and you play 50 fixed paylines on each spin. Meanwhile, a spooky soundtrack plays out as you spin the reels.
Like the best online slots, you play Monster Manor on a standard 5×3 set-up. Black cats are single wilds, but expanding wilds can cover an entire reel.
Monster Manor also features a generous free spins bonus when you land 3–5 scatters. You trigger 10 free spins with a 3x multiplier on every win. Check our review of Wild Casino to see why it’s so highly rated for Frankenstein slots and other games.
#2 – Freaky Frankenstein
- Software: Nucleus
- Release Date: 2017
- Reels: 5×3
- Paylines: 20
- RTP: 96.83%
This Frankenstein slot machine isn’t dissimilar to the previous one I reviewed. Like the Ruby Play-powered slot, the one by Nucleus Gaming also features characters from the 1930s classic horror movies.
The only difference is that the ones you see in the Freaky Frankenstein slot are a bit goofier.
The maximum win when playing Freaky Frankenstein is 2,500 times your total bet.
At BetUS, you can bet up to $7 per line, and considering that there are 20 paylines in this game, your max. bet is $140. This means that if you hit the main prize on max. bet, you will get $350,000 in your account.
You can read more about BetUS with our gambling site review, or head straight there to begin playing this Frankenstein slot machine.
#3 – Frankenslot’s Monster
- Software: Betsoft
- Release Date: 2016
- Reels: 5×3
- Paylines: 20
- RTP: 96.83%
Frankenslot’s Monster by Betsoft is another 5-reel 3-row game with 20 paylines and a 93.83% RTP. The game’s 3D graphics are typical of a Betsoft slot, complete with cutting-edge animation all the way.
You win 8 free spins in the main bonus game of Frankenslot’s Monster. Plus, you may trigger the Experimental Bonus and control the monster himself!
Control the amount of electricity sent to the monster. You win a varying random cash prize if you judge the shock properly.
If you love Frankenstein casino slots and other Halloween-inspired characters, then you can play witch-themed slots online, vampire slots, ghost-themed games, and more on this site.
Read more in our Super Slots casino review where you’ll find information on the site’s horror slots and tip-top selection of games. You can Play 1000+ top slots and table games and earn free spins when you join.
#4 – Frankenstein
- Software: KA Gaming
- Release Date: 2020
- Reels: 5×3
- Paylines: 50 fixed
- RTP: N/A
KA Gaming’s Frankenstein slot is probably the simplest game on our list in terms of overall gameplay. It’s also the only Frankenstein-themed slot on the list to contain mega reels.
You play Frankenstein on a standard 5×3 set-up with 50 paylines in operation. You win 8 free spins by landing 9 scatters on the middle 3 reels.
Plus, a mega reel activates during the free spins bonus. The center 3 reels merge to become one giant reel. Additionally, the Mega Reel is guaranteed to land fully in view on every spin.
We recommend reading our review of MyBookie to see why it’s the go-to casino for Frankenstein slots. You can play 250+ top themed slots, including the Asian game, Luck of Tiger.
#5 – Mega Monster
- Software: RTG
- Release Date: 2024
- Reels: 5×3
- Paylines: 20–60
- RTP: 96%
Mega Monster is one of the newer Frankenstein slots on our list. It was released in 2024 by RTG and features a range of bonuses, including wilds and free spins.
A random Sliding Reels feature triggers during the base game or the free spins feature. Franky the monster transforms into a wild symbol when he appears on the screen. In addition, reels 2–5 slide to the left to create potential new winning combinations.
Mega Monster also features expanded reels, extra wilds, and 10 free spins. Read our OnlineCasinoGames review now and head to the site to earn a whopping 400% deposit match deal.
#6 – Scary Rich
- Software: Rival Gaming
- Release Date: 2007
- Reels: 5×3
- Paylines: 20
- RTP: 96.70%
Rival Gaming’s Scary Rich is the first in a short series of Frankenstein slots featuring a hoard of ghastly ghouls. Released in 2007, Scary Rich is showing its age a little, but the 20-payline gameplay still delivers.
Frankenstein’s monster is one of the medium-paying symbols in the game. However, the Dracula icon pays out a 500x jackpot if you hit 5-of-a-kind, and acts as a wild with 2x multipliers.
Frankenstein’s monster also acts as a scatter symbol in Scary Rich. You trigger 10 free spins by hitting 3+ Frankenstein scatters in any position. Plus, free spins feature expanding wilds with a progressive multiplier for each successive win.
Read our Ignition Casino review to discover why it’s the best gambling site for ghoulish slots like Scary Rich. You can activate a welcome bonus worth up to $5,555 when you sign up!
#7 – Scary Rich 2
- Software: Rival Gaming
- Release Date: 2008
- Reels: 5×3
- Paylines: 20
- RTP: 95.28%
Scary Rich 2 was released in 2008, a year after Rival Gaming launched its range of spook-tacular themed slots. Like Scary Rich, the sequel offers 20 paylines, plus you can choose 1–10 coins while enjoying improved graphics and FX.
Scary Rich 2 boasts “more scares, more riches” as you load the game. And you certainly earn more free spins in the main bonus. You can trigger 13 free games by landing 3–5 scatters on a spin.
Free spins feature expanding wilds with a 3x multiplier, up from 2x in the previous Scary Rich game. You can also build up wilds during normal play for a top multiplier worth 13x.
Check out the review of Bovada, one of our favorite US-facing casinos for Scary Rich 2 and 100s of slots. You can claim a 125% sign-up bonus too when you join.
#8 – Frankenstein’s Rebirth
- Software: Spinomenal
- Release Date: 2025
- Reels: 5×3
- Paylines: 5
- RTP: N/A%
Win up to 5000x in Frankenstein’s Rebirth, a slick 3-reel slot released in 2025. The game combines classic 3-reel thrills with a surprising number of bonus features. You can trigger re-spins or a generous free spins bonus with persistent payouts.
Frankenstein’s Rebirth only features 5 paylines. However, the top jackpot for 5-of-a-kind Frankenstein’s Monster symbols is 120x.
The Chase! Symbol lights up any reel it lands on. You trigger 1 free re-spin, but you win 10 free spins if you light up 3 reels. Look out, too, for Chase’N Win scatters during the bonus that add more free spins and multipliers worth up to 5000x.
It’s good to end our Frankenstein online slots with a classic 3-reeler. Check out our TrustDice review to discover another gambling site that offers multiple classic slots and top games.
Playing Frankenstein Slots Online
Monster Manor is our top Frankenstein slot machine online for real money players. You can enjoy Woohoo’s trademark slick gameplay and trigger a generous free spins bonus.
Why not try Monster Manor and 1000+ games at Wild Casino? The casino offers one of the most solid online gambling platforms around.
You can find top zombie-themed slots like The Wicked Dead or jump into a daily cash tournament. Sign up to Wild Casino today and take a walk on the wild side.
