100 Zombies Slot Review
The city has already fallen. A sickly green glow hangs over the skyline, hazard-striped barricades divide the reels, and something moves in the mist below the frame. That quarantine zone is 100 Zombies, and the game built inside it trades spectacle for arithmetic: a total return of 98.03%, one of the most generous figures you’ll meet anywhere, paid for by a paytable that tops out at 6x the bet.
That’s the deal Endorphina has struck on a 5×4 grid with 100 paylines: steady returns over spectacular ones, with wilds, free games and a card gamble doing the work. Sister titles include 100 Zombies Dice, 3 Thunders and Lucky Cloverland. The maths is left to speak for itself, and it speaks quietly.
Paylines, Symbols and Stacked Wilds
Wins form the classic way: matching symbols on enabled paylines, on adjacent reels, starting from the leftmost. Scatters count in any position. Only the highest combination per payline pays, and scatter wins are added on top of line wins.
The cast fits the setting. Survivors – a red gunman, a pink gunwoman, a cowboy hunter – share the reels with the infected, including a green zombie, a nurse zombie and a police zombie. The royals, A, K, Q and J, fill out the lower rungs.
The Wild substitutes for every symbol except the Scatter and arrives stacked in both the main game and Free Games. Where the reel stops decides how much of it you see: a full stack, or just the beginning or end of the sequence. It’s also the richest symbol on the board, which tells you plenty about the rest of the ladder.
All symbol values below are multiples of the total bet:
- Wild – three pays 1x, four pays 2.25x, five pays 10x
- Red gunman / Green zombie – three pays 0.5x, four pays 2x, five pays 6x
- Pink gunwoman – three pays 0.25x, four pays 1.5x, five pays 4x
- Nurse zombie – three pays 0.25x, four pays 1.5x, five pays 3.5x
- Cowboy hunter / Police zombie – three pays 0.1x, four pays 1x, five pays 2x
- A / K – three pays 0.05x, four pays 0.5x, five pays 1.25x
- Q / J – three pays 0.05x, four pays 0.25x, five pays 1x
- Scatter – three pays 2x, and appears on reels 2, 3 and 4 only
Free Games
Landing scatters on the middle three reels at once awards 10 Free Games with Stacked Wilds. Because the scatters only appear on reels 2, 3 and 4, the trigger is a narrow one by design – three specific reels all needing to cooperate on a single spin.
The round plays out at the same bets and lines as the spin that launched it, so there’s no separate paytable or altered rules to learn. It can also be won again during the feature.
With Wilds stacked throughout, the middle reels turning wild is where the round’s real money sits. On a four-row grid with 100 paylines in play, a full stack can complete winning lines across a large stretch of the board at once.
The Risk Game
After any win you can gamble it. Four cards are dealt face down; pick one and beat the Dealer’s card to double your money, with up to 10 attempts in total. Lose a round and the winnings are gone, and the Risk Game ends on the spot.
The Joker beats everything, and the Dealer can never draw one. An equal value is a draw: your win stands and you can take another attempt. The TAKE WIN button collects and quits whenever you’d rather not push it.
What makes the gamble interesting is that it isn’t uniform. All four closed cards can sit above the Dealer’s card, all four can sit below it, and cards can reappear from round to round. The deal isn’t equally distributed either, so the odds genuinely move depending on what the Dealer is showing.
Risking it regardless of the Dealer’s card averages an 84% return on the gamble, but that figure swings hard with the card you’re up against – a deuce is the friendliest dealer card to face, an Ace the worst. Reading the card before deciding is the whole skill of it, such as it is.
Bonus Pop Buy Feature
The BONUS POP button buys the Free Games package at any time. It costs 28x the total bet, and the price moves directly with your stake.
- Activates a package of 10 Free Games with Stacked Wilds
- Works exactly like a chance trigger, starting with one main-game spin that lands the scatters
- Winnings from bought games can’t be gambled in the Risk Game
- Availability varies by operator
That opening spin is a small curiosity: the game runs a base-game reel spin first, which produces the scatters needed to start the round as normal. From there it plays out identically to a natural trigger.
Because the bought round behaves the same way as a landed one, the only differences are the price of admission and the loss of the gamble option on whatever it pays. If the Risk Game is part of the appeal, the natural route keeps that door open.
Our Honest Verdict
Overall Rating: 7/10
Playing 100 Zombies is a long, steady sit rather than a thrill ride. Wilds stack across the 100-line grid, small wins tick over, and the Free Games round is the base game with the volume turned up. The one reason to choose it is the value: few slots hand back this much of your money over a session.
The best thing here is the Risk Game, because it’s a decision rather than a coin flip. The odds shift with the Dealer’s card, so knowing when to push and when to bank is a genuine choice. The paytable is the weakness: with the wild worth 10x and the best regular symbol 6x, there’s no ceiling moment anywhere in the design, and even a good Free Games run pays respectably rather than spectacularly.
This is for players who like a long session on a modest stake and a gamble they can read. Anyone hunting a four-figure hit won’t find one behind these barricades. The horde is patient, and so is the money.
100 Zombies FAQs
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What is the RTP of 100 Zombies?
The total return to player is 98.03%, which is well above the industry average. The Risk Game gamble has its own average return of 84% if you always take the risk. -
How do you trigger the Free Games in 100 Zombies?
You need scatters to land simultaneously on reels 2, 3 and 4 – they don’t appear anywhere else. That awards 10 Free Games with Stacked Wilds, and the round can be won again during the feature. -
How does the Risk Game work?
After a win you pick one of four face-down cards. Beat the Dealer’s card and your win doubles, up to 10 attempts. The Joker beats everything and the Dealer can never get one, while an equal value is a draw that lets you try again. TAKE WIN collects your current winnings at any point. -
Can you buy the bonus in 100 Zombies?
Yes. The BONUS POP button activates a package of 10 Free Games for 28x the total bet. Winnings from bought games can’t be gambled in the Risk Game, and the feature may not be available at every casino. -
Are the odds the same on every Risk Game round?
No. The cards aren’t dealt with equal probability, and the four closed cards can all be higher or all be lower than the Dealer’s card. The average return is 84% if you always gamble, but your chances in each round depend on the Dealer’s card – a deuce is the best one to face, an Ace the worst. -
How many paylines does 100 Zombies have?
100 Zombies is a 5-reel, 4-row slot with 100 paylines. Wins need matching symbols on adjacent reels from the leftmost, except scatters, which count in any position. -
What is the biggest prize in 100 Zombies?
The richest symbol is the Wild, which pays 10x the total bet for five of a kind. Three scatters pay 2x on top of any line wins. -
Who makes 100 Zombies?
Endorphina. The release date of 100 Zombies is 20 October 2020.
