Quick answer
100 Zombies is a Endorphina slot (2020) with 96.03% RTP, low volatility and a 10,000x max win. It uses 100 paylines with wild symbols, gamble feature and bonus buy. An official free demo is available. RTP can vary by casino.
On this page10 sections
Key specs
- RTP
- 96.03%
- 0.01 points below the median (96.04%)
- Volatility
- Low1 of 6 on our volatility scale
- Max win
- 10,000x
- Higher than 64% of slots in our database
- Grid
- 5×4
- Pays
- 100 paylines
- Released
- 20 Oct 2020
- Bet range
- $1–$200
Not published by the provider: jackpot
Top-rated casinos (check the game is available)
We haven't confirmed which partner carries this game.
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Key terms
Every significant term is in the line above.
Full T&Cs apply. Please gamble responsibly.
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Key terms
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Key terms
- Cashback
- Cashback: 10% of net casino losses each week (Monday to Sunday), paid as cash with no wagering every Monday, up to $500 a week.
Full T&Cs apply. Please gamble responsibly.
Game availability varies by casino and country.
Themes:
Free demo Members
Try 100 Zombies with play money before deciding whether to play for real. Official Endorphina demos are free for GambGenius members.
How to play 100 Zombies (members only)
Wins are paid when matching symbols land on an active payline, usually left to right starting from the leftmost reel. Your total stake is spread across the lines, and each line win is the line bet multiplied by the symbol's paytable value.
100 Zombies is played on a 5×4 grid with 100 paylines.
- Set your stake. Choose your total bet per spin between $1 and $200. Wins are paid as multiples of this stake.
- Check the paytable. Open the game's info screen to see what each symbol pays and the exact rules for this version.
- Spin. Each spin's result is decided by a certified random number generator, independent of previous spins.
- Trigger the bonus. Land the required scatter symbols to start the free spins feature.
- Optional bonus buy. Where permitted, pay a fixed price to start the bonus directly.
The full 100 Zombies guide: how winnings work, 5 features and 4 strategy tips
- Your stake plan: a $50 budget → about $0.50 a spin (low volatility)
- What 96.03% RTP costs per $100 wagered: $3.97 on average
- 5 features explained: wild symbols, gamble feature, bonus buy, free spins, stacked wilds
- Bonus-buy risk breakdown
- Stake plans for $20 to $250 budgets, checked against the $1 minimum bet
- 4 slots with the same style and a higher RTP (up to 98.6%)
- Strategy tips and a session planner for 100 Zombies
Free · no card · 18+ only
Never sold · export or delete any time · What do members get?
How winnings work (members only)
What 96.03% RTP costs per $100 wagered, the 10,000x max win at a $1 stake
The top prize is capped at 10,000x your stake. On a $1 spin that is $10,000; on $0.20 it is $2,000. When the cap is reached the round usually ends immediately.
What 96.03% RTP means
Expected return = stake × 96.03%
Over $100 of total bets, the long-run average loss is $3.97
RTP is a long-run average across millions of spins. Any single session can finish far above or below it, especially on a low volatility game.
Features explained (members only)
5 features explained: wild symbols, gamble feature, bonus buy, free spins and more
Wild symbols
Wilds substitute for regular paying symbols to help complete winning combinations. They do not normally replace scatter or bonus symbols.
Gamble feature
After a win you can risk it on a double-or-nothing guess, such as the colour of a card. It does not improve the game's long-term return.
Bonus buy
Lets you pay a fixed multiple of your stake to enter the bonus feature straight away instead of waiting for it to trigger. It raises variance considerably and is not available in every country (it is banned in the UK).
Free spins
A bonus round of spins played at no cost to your balance, usually triggered by landing three or more scatter symbols. Wins during the round are added to your balance, and many games let you retrigger extra spins.
Stacked wilds
Wilds appear in vertical stacks covering several positions on a reel, which can connect wins across many lines at once.
Strategy tips (members only)
- Size your stake to the volatility. Low volatility means frequent, smaller wins and a smoother balance. It suits longer sessions and bonus wagering, but big multipliers are rare. A simple rule: bring at least 100 spins' worth of budget, so a $50 budget suggests a stake of about $0.50.
3 more tips and a session planner
- Treat bonus buys as high-risk. Buying the feature concentrates your budget into a few large-variance rounds. Many results return less than the price paid. Read our bonus buy guide first.
- Bonus wagering: at 96.03% RTP, clearing $1,000 of wagering costs about $39.70 on average. Check the bonus terms, as some casinos exclude specific games. Run your numbers in the wagering calculator.
- Set limits before you spin. Decide your loss limit and session time in advance and stop when you reach either. No pattern or betting system changes the outcome of a spin.
More on this in slot RTP and volatility explained and bankroll management.
Does it fit your budget? (members only)
Stake plans for $20 to $250 budgets, checked against the $1 minimum bet
For low volatility we suggest a budget of at least 100 spins. This is what that means for 100 Zombies (bets from $1 up to a maximum bet of $200).
| Budget | Stake a spin | Bet range | Average cost of 100 spins |
|---|---|---|---|
| $20 | $0.20 | Below the $1 minimum bet | $0.79 |
| $50 | $0.50 | Below the $1 minimum bet | $1.98 |
| $100 | $1 | Fits | $3.97 |
| $250 | $2.50 | Fits | $9.92 |
Averages only: a short session can end far above or below them. Set a loss limit before you play.
Same style, better RTP (members only)
4 slots with the same style and a higher RTP (up to 98.6%)
Slots with the same mechanic (paylines) and volatility (low) as 100 Zombies, with a higher published RTP. Casinos can still run lower versions of any of them.
1429 Uncharted Seas98.6% RTP · +2.57 pts
12 Zodiacs98% RTP · +1.97 pts
5 Lucky Lions98% RTP · +1.97 pts
Arcane Elements98% RTP · +1.97 ptsQuestions
Frequently asked questions
Who makes 100 Zombies?
100 Zombies is developed by Endorphina and was released in 2020.
What is the RTP of 100 Zombies?
The default RTP of 100 Zombies is 96.03%.
Is 100 Zombies high volatility?
100 Zombies is rated low volatility. Low volatility means frequent, smaller wins and a smoother balance.
What is the max win on 100 Zombies?
The maximum win on 100 Zombies is 10,000x your stake, which is $10,000 on a $1 spin.
Can I play 100 Zombies for free?
Yes. GambGenius members can play the official Endorphina demo of 100 Zombies free on this page. It uses play money only, so demo wins can't be withdrawn, and it is for players aged 18 and over.
Does 100 Zombies have a bonus buy?
Yes. 100 Zombies includes a bonus buy option, although it is unavailable in some countries such as the UK.
Where this data comes from
- endorphina.com Provider
- slotcatalog.com Slot database
- endorphina.com Provider
Specs come from the provider's own site and 1 independent slot database. Casinos can run lower-RTP versions, so always check the game rules before you play.
Game artwork © Endorphina, shown to identify the game.
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