Cathedral 9 Demo & Slot Review (ELK Studios)

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Slot review: Cathedral 9

Step into a grand, shadow-draped sanctuary in Cathedral 9, where ancient relics lie hidden beneath gothic arches and choral echoes linger in the air. ELK Studios conjures a haunting atmosphere: stone pillars stand tall, moonlight filters through stained glass, and mysterious coffins hint at treasures long buried. You’re not chasing a sequel here but a new epic quest: gather nine sacred artifacts, shatter the forbidden coffins and awaken the cathedral’s dormant power. Visuals, theme and sound all lean into a mystical-religious vibe with a dark twist, making each spin feel like exploring a forgotten tomb of gold and mystery.

Slot overview: Cathedral 9

Cathedral 9 is set on a 6-reel by 5-row grid and uses a Scatter Pays system: wins form when 8 or more matching symbols appear anywhere on the grid. The betting range runs from about 0.20 up to 100 per spin. The RTP is listed at 94.00%, with medium-to-high volatility, meaning wins are less frequent but carry considerable size. The maximum win potential is up to 25,000x your bet.

Among its mechanics you’ll find cascading symbols that clear and refill, oversized symbols (2×2, 3×3, 4×4) that act as multiple regular ones, a “Feature Reel” row above the main grid that drops modifiers like Wilds, Collectors or Explosions, “Mystery Coffins” that nudge downward and reveal matching symbols or multipliers, and two bonus modes: a Bonus Game and a Super Bonus Game which is unlocked when you collect all nine artifacts. The game also includes a Feature Buy menu (X-iter) for players who prefer to jump straight into bonus action.

Slot features: Cathedral 9

Cascading Wins / Big Symbols: After a win, paying symbols vanish and new ones drop in; some symbols appear as oversized 2×2, 3×3 or 4×4 and count as multiple positions.
Feature Reel: A row above the main grid drops down special symbols (Wild, Collect, Explosion) when space becomes available, activating modifiers in the base game.
Mystery Coffins & Super Coffins: Stacked coffin symbols appear, nudge down with cascades and when they reach the bottom they activate, revealing matching symbols or wilds. Super Coffins add their multiplier (x2 to x1,000) to a global multiplier meter which persists through the bonus round.
Entombed / Super Entombed: A 6×2 symbol may cover the Feature Reel entirely, triggering Entombed which converts all grid symbols to one type: Super Entombed selects a high-paying symbol, locking in stronger wins.
Holy Collect: When a Holy Blocker drops from the Feature Reel, energy is added to the collection pot. This may trigger 3-6 coffin symbols on the grid, fuelling the Mystery Coffins mechanic.
Bonus Game & Super Bonus Game: Landing 3 or more Bonus symbols triggers the Bonus Game which awards Free Drops and maintains the global multiplier between spins. Collecting all nine artifact icons during the Bonus Game triggers the Super Bonus Game, where each spin starts with 1-6 Super Coffins guaranteed.
Feature Buy (X-iter):
- Bonus Hunt: 2.5x bet (atleast 3x higher chance of triggering Bonus Game)
- Mega Bonus Hunt: 10x bet (10x higher chance of triggering Bonus Game)
- Coffin Drop: 50x bet (guarantees Mystery Coffins appear)
- Bonus Game: 100x bet
- Super Bonus Game: 500x bet (Bonus Game with Super Coffins guaranteed)

Our verdict: Cathedral 9

Cathedral 9 is a visually intense and mechanically dense slot that caters to players who enjoy high volatility and layered features. On the plus side: the gothic theme and immersive sound design draw you in, the cascade + big symbols + coffin systems offer depth, and the 25,000x max win is very compelling. Overall, if you love slots with atmosphere, mechanics that reward patience and big upside, this one’s a strong pick.

Our rating 7/10