How does the Risk Game work in 100 Zombies?

After a win, you choose one of four cards against the dealer's card. A successful choice doubles your current prize and lets you continue, while a loss forfeits the entire accumulated amount.

How many paylines does 100 Zombies have?

100 Zombies features a 5×4 layout with 100 fixed paylines. The large number of paylines increases the chance of landing small wins on most spins.

Does 100 Zombies include Bonus Pop?

Yes, but Bonus Pop is not available in every casino. Its availability depends on the operator's licence and jurisdiction.

100 Zombies (Endorphina) Free Demo and Slot Review

A quiet sunny town turns into a battlefield against the walking dead in an instant — a scientific mistake has unleashed a hundred zombies, and only a handful of brave fighters stand between chaos and survival. Endorphina brings a classic horror apocalypse to the reels, where the real stake isn't money — it's life itself.

100 Zombies runs on a wide 5×4 grid with 100 paylines, low volatility (Low), and an RTP of 96.03%. Hit frequency sits at 3.6, while the win ceiling reaches ×833 the stake.

What actually holds this game together?

The vault takes on the Wild role, substituting for every symbol except Scatter. The biological hazard sign serves as Scatter, paying from any position on the grid regardless of paylines.

💡 Stacked Wilds in the base game and free spins

The vault Wild can land stacked in the base game itself, not just during the bonus round, which — combined with the wide 100-line grid — noticeably raises the odds of a combination on any given spin.

Where does the big win hide?

Three Scatter symbols trigger a round of 10 free spins featuring Stacked Wilds, and the free spins themselves can retrigger during the feature.

Low volatility — what does it actually feel like?

With a hit frequency of 3.6, this slot behaves atypically for its stated low volatility: hits land noticeably less often than in most low-volatility Endorphina titles. The wide 100-line grid and Stacked Wilds partly offset this, but most of the interest still sits in the bonus round.

⚠️ The card-based Risk Game is riskier than the classic version

The Risk Game here is built around a card duel against the dealer: players are dealt four cards to choose from, picking one to compare against the dealer's card. If the player's card wins, the payout doubles and the round can continue, pushing the multiplier up to ×10. But if the dealer wins any round, the Risk Game ends and the entire accumulated win is lost outright.

What players love

100 fixed paylines on a wide 5×4 grid
Stacked Wilds appear in both the base game and free spins
Free spins can retrigger during the feature itself
An unusual card-based Risk Game instead of the standard doubling

Worth keeping in mind

⚠️ Availability of the Bonus Pop feature may depend on jurisdiction and casino
A 3.6 hit frequency is on the low side for a stated low-volatility slot
The card-based Risk Game wipes the entire accumulated win if the dealer wins any round
The ×833 ceiling is more modest than many other Endorphina slots

Who's cut out for this zombie apocalypse?

Player Profile	Verdict	Why
Loves horror themes in slots	🟢 Yes	A zombie apocalypse is a rare, atmospheric theme for the genre
Values a wide payline grid	🟢 Likely	100 lines on a 5×4 grid give plenty of room for combinations
Prefers frequent hits without a long wait	🟠 Unlikely	A 3.6 hit frequency is lower than typical for a stated low-volatility slot
Plays at casinos with feature restrictions	🟡 Caution	Bonus Pop isn't available in every jurisdiction — worth checking in advance

⚡ Is 100 Zombies worth playing?

100 Zombies wins on atmosphere and a generous payline grid — 100 ways to win on a 5×4 layout, paired with Stacked Wilds, can build a meaningful combination in both the base game and free spins. The card-based Risk Game adds real thrill for players willing to gamble their entire accumulated win. Players who love the horror theme and don't mind the occasional wait between hits should thoroughly enjoy this zombie apocalypse.