October is the busiest month, but not the whole season
Fifteen October releases among sixty-one dated titles
Fifteen of the catalogue's sixty-one dated titles were released in October. That makes October the single most common calendar month for release in this shelf, but it is not a majority. The plain arithmetic means a player who only looks at late-October front-page highlights is sampling a minority slice of the collection.
The October total is a mild spike rather than a wall of titles. The catalogue records fifteen October releases, compared with forty-six titles released in months other than October. In other words, roughly three quarters of the shelf arrived outside October.
This matters for anyone curating a playlist for the season. Seeing October content on a front page in October gives a seasonally tidy impression, but the catalogue as a whole is distributed across the rest of the year and will not be accurately represented by that single month's output.
October titles are scattered across years: 2016, 2018, 2019, 2020, 2021, 2024 and 2025
Those fifteen October releases are spread across several years rather than concentrated in a single recent autumn. The catalogue breaks the October group down as one title from 2016, three from 2018, one from 2019, one from 2020, four from 2021, one from 2024 and four from 2025. The distribution shows recurring October releases in multiple years, not a one-off surge.
A seasonal observer who assumes October equals a single concentrated production run will be surprised by the scattering across years. The 2025 cohort of four October releases is noticeable, but it is not enough to claim October has become the exclusive shipping window for this theme. The February-to-December spread in other years remains significant.
For a player browsing in late October, the year-to-year scatter means the visible October titles will include older entries as well as recent ones. That mix produces a catalogue slice with mixed ages and mechanics rather than a uniform batch engineered for a single season.
Exact release dates for representative October entries and why they matter
A closer look at the catalogue's own release dates shows specific October timestamps that are useful to note. For example, Zombie Circus was published on 2018-10-24, Attack of the Zombies arrived on 2016-10-27, Lost Vegas Zombie Scratch shows 2019-10-24, I Zombie is dated 2018-10-31 and 100 Zombies carries 2020-10-20. These exact dates are the primary record for each title and the place to consult if you need a precise timeline.
The exact day matters because it tells you whether a title is a true autumn launch or merely catalogued into October for administrative reasons. A late-October date like 2018-10-31 is clearly aligned with the seasonal window, while an early-October release could equally be used by operators outside that narrow period. The catalogue keeps these timestamps, which are the authoritative record.
Relying on month-only impressions obscures this detail. If you want to judge whether a release was timed for the Halloween season or simply listed in October, consult the game's published release date in the catalogue rather than a headline that groups it by month alone.
How old the shelf really is: from 2005-07-22 to 2026-05-18
The catalogue's oldest title is Zombie Land with a published release date of 2005-07-22. This establishes a long-running presence for the zombie keyword in slot releases. The catalogue's newest dated entry is Giga Zombies, released 2026-05-18, which shows the shelf is current up to the first half of 2026.
This spread from 2005 to 2026 means the shelf covers more than two decades of production styles and mechanical practices, albeit recorded here only as metadata. Players should expect that release-year differences correspond to different mechanical emphases and feature sets, which the catalogue records through features and volatility labels.
Saying the shelf is 'long' is less useful than what that length implies in practice: the catalogue contains early-generation titles and recent builds, and many intermediate steps. If you filter by release year you will find both significantly older entries and fresh launches rather than a homogeneous catalogue tied to a single season.
Months other than October: the catalogue ships year-round, with September and April close behind
Outside October the busiest months are September with seven titles, and April with six. July and March also contribute six apiece, while May has five releases. Those counts show substantial activity outside the autumn window.
The presence of multiple months with half a dozen launches or more demonstrates the catalogue is not a purely seasonal affair. Developers and studios ship zombie-titled slots in spring, early summer and late summer as well as in autumn. That pattern supports the idea that 'zombie' is a recurring motif used throughout the year.
For a seasonal player this means the best way to find new material is not to wait for October alone. Browsing in April, July or September will find additional releases that may be relevant to an autumn playlist but were produced at other times of the year.
Why the theme keeps shipping all year: mechanics and feature counts explain steady output
The catalogue lists Free Spins on fifty titles and Wilds on fifty titles, which explains why developers can reuse the same mechanical building blocks across seasons. Those common features are evergreen and fit many operators' needs, so studios release zombie-titled games whenever they have a suitable mechanic to match a market slot list.
Buy Feature appears on twenty-two titles and RTP ranges on eighteen, reflecting commercial practices that are not season-specific. When a studio has a new buy feature implementation or an RTP-range product, they may apply the zombie label regardless of the calendar month because the feature itself is the real product adjustment.
Sticky Wilds, Multipliers and Bonus symbols are also present across many entries, giving designers multiple levers to rebrand or retheme a mechanical iteration as a new title. In short, the catalogue's steady flow across months is driven by reusable mechanics and market needs rather than seasonal motifs alone.
October releases do not dominate volatility or RTP extremes
October being the single biggest month does not mean all the catalogue's extremes come from that month. The six highest published RTP figures include titles released in September, April, May and other months rather than clustering in October. High-RTP entries are distributed across the calendar.
Similarly, the largest published maximum wins such as Chicken vs Zombies (3608855x) and Plants vs. Zombies: Wild Gargantuar (1,000,000x) are associated with October and non-October releases across different years. The point is that big numbers appear across months and release years, not just in October launches.
Volatility labels follow the same logic. The shelf contains fifteen HIGH-volatility titles and a wide mix of MED, MED-HIGH, LOW-MED and LOW, and these volatility groups are not concentrated solely in October entries. A player seeking a particular risk profile must look at each title's published volatility rather than assuming October equals high risk.
Practical browsing advice for players in late October
If you are browsing in late October expecting a season-defining list, remember that only fifteen of the dated titles fall in October and those are scattered by year. Front pages tuned to autumn will show an attractive slice, but it is a small and partly accidental subset. Expand your search to adjacent months to get a fuller view.
Use the metadata fields the catalogue provides: release date, RTP, volatility and maximum win. These published figures are the only reliable signals the catalogue supplies for judging whether a title fits your session plan. Treat October labelling as a convenience for operators rather than a guarantee of uniqueness.
If you want fresh October launches specifically, consult the exact release dates recorded for each title in the catalogue. They are the definitive reference for launch timing and will tell you whether a game was genuinely released during the holiday window or simply catalogued into that month.
Seasonal expectation versus catalogue reality for Halloween 2026
We are in August 2026 and the Halloween season is still ahead, so October releases will matter to operators and players shortly. The catalogue shows October is the single busiest month historically, but the majority of titles sit outside that month, which moderates any claim that this shelf is exclusively a Halloween phenomenon.
For Halloween planning, the useful takeaway is that new or recent October-labelled entries are only part of the story. Older October releases and non-October launches both supply material that operators can feature during the season, so curators should mix timestamps rather than restricting themselves to that month's releases alone.
Ultimately the catalogue's pattern supports a modest seasonal boost in October rather than a full seasonal lock. Expect a visible October contingent during Halloween 2026, but remember the catalogue's broader year-round production will provide additional titles to program into the season.
