Paylines
30 fixed (win both ways)
A chainlink fence wraps the entire reel cabinet, barbed wire stretched across the top, with a crooked No Trespassing sign rusting on the left edge. Behind the grid, a smoldering city skyline goes about the business of falling apart. This is Habanero leaning hard into mid-2010s zombie-apocalypse pulp, and the wordmark above the reels wears a slasher-poster font with red paint drips for good measure. Released in summer 2017, it sits inside the studio's older engine wave, which means none of the modern conveniences are here. No buy feature, no ante bet, no super-stake button. Just a five-by-three grid and a play button.
The headline mechanic is win both ways. All 30 fixed paylines resolve in two directions, so a king-king-king run starting from reel 5 pays the same as one reading off reel 1. The effective payline count is closer to 60 directional reads per spin, which is why the math runs at low volatility. You hit small payouts frequently, the variance stays shallow, and the model rebalances downward to compensate for the doubled trigger surface. The baseline RTP sits at 95.92%, with some operators publishing a 98% multi-tier headline. Bets start at 30 cents per spin and stretch up to 3,000 at the top of the range.
The expanding wild is the only base-game amplifier. When it drops on one of the middle reels, it stretches to fill the full column and substitutes for everything except the yellow biohazard scatter. With wins resolving in both directions, a fully-expanded reel three can pull double duty across a single spin. The biohazard symbol both triggers the bonus round and pays directly as a scatter wherever three or more land. Free games run 15 to 30 spins depending on the trigger size. There's no standard retrigger here, which feels unusual. Instead, every zombie bonus symbol that lands during the round adds exactly one extra spin to the running counter, so the extension feels gradual rather than dramatic.
A small criticism: the lack of a published max-win multiplier makes it hard to set expectations going in. Reviews bracket it as modest, which fits a low-volatility build, but a clearer cap would be nice. The four-tier random progressive jackpot wired into the production version (Mini, Minor, Major, Grand) doesn't light up in the demo init, so you only see the base game and bonus running here. A gamble double-up feature is available after wins. Habanero is an official partner studio of Respinix.