Positives
Engaging Mystery Coffin mechanics
Variety of bonus features
Super Bonus mode with enhanced rewards
X-iter modes for feature access
Negatives
Below-average RTP at 94%
High volatility may not suit all players
Some features can be complex
Cathedral 9 is a high-volatility video slot developed by ELK Studios. The game features a 6-reel, 5-row layout with a Scatter Pays system, where wins are triggered when 8 or more matching symbols appear anywhere on the grid rather than along standard paylines. It offers an RTP of 94%, which is slightly below the industry average. Stakes range from €0.20 to €100.00 per spin, allowing flexibility for different budgets. Players can pursue a maximum win of up to 25,000x their bet.

Cathedral 9 draws players into a haunting atmosphere set inside a fog-covered cathedral under the night sky. The reels display vivid gem symbols in blue, green, purple, and red, along with thematic icons such as candles, talismans, chained orbs, goblets, and golden owls.
The eerie visuals are enhanced by a dark, suspenseful soundtrack that deepens the mysterious tone of the game.

The game includes a 6×2 Feature Reel containing both feature symbols and empty spaces. When winning combinations clear symbols (except Mystery Coffins), feature symbols may drop into the empty positions, followed by a regular symbol drop. This process continues as long as new wins form.
Collector Symbols activate when no further wins are available. They select one visible pay symbol type on the grid and gather all matching instances into a single position. Symbols within coffins are excluded from collection.

Explosion Symbols also trigger when no more wins occur. They remove all pay symbols in their own and adjacent columns, clearing the grid for new symbols.
Mystery Coffins activate upon reaching the bottom of the grid, revealing matching symbols or Wilds. After a win, they nudge down and reveal again until no further wins occur. Super Coffins behave similarly but also apply their multiplier to the Global Multiplier. When landing, Mini Coffins spawn a regular Mystery Coffin directly above.

The Global Multiplier begins at x0 and activates when a Super Mystery Coffin reaches the bottom of the grid. Once active, it remains in effect for the duration of the current round or Free Drop. Super Coffins can carry multiplier values from x2 to x1,000.
The Entombed Feature triggers when the entombed symbol completely fills the Feature Reel and no further wins are present. It replaces all symbols on the grid with a single paying symbol. The Super Entombed Feature functions the same way but only uses mid- or high-value symbols.

The Holy Collect Feature can activate during any spin or Free Drop. Each time a holy blocker drops from the Feature Reel, it adds energy to the Holy Collect meter, which carries over between game rounds. When triggered, it adds 3 to 6 Mystery Coffins to the grid. Each round has the same chance of activation.
Landing 3 to 6 Bonus symbols triggers the Free Drops Bonus Game. Each Bonus symbol awards 2, 3, or 4 Free Drops. The Global Multiplier remains active during the round. When a Mystery Coffin reaches the bottom, it can activate the multiplier if inactive, though it resets between Free Drops. Additional Free Drops are granted for new Bonus symbols in the same manner as the initial trigger.

The Super Bonus Game activates by achieving a win with all 9 pay symbols during the Bonus Game, awarding 2, 3, or 4 extra Free Drops. Each Super Free Drop starts with 1 to 6 Super Mystery Coffins added to the grid. Only Super Coffins appear in this version, and any inactive ones automatically activate between Free Drops.

Cathedral 9 delivers a dark, atmospheric experience packed with creative mechanics. Its Scatter Pays system, Mystery Coffins, and powerful modifiers create a dynamic, unpredictable style of gameplay. While its 94% RTP sits below average, the variety of bonus features — including the Super Bonus and X-iter options — offer ample opportunities for players who enjoy high-volatility slots with strong win potential of up to 25,000x the bet.
What is the RTP of Cathedral 9?
What is the maximum win possible in Cathedral 9?
How do wins occur in Cathedral 9?
How does the Global Multiplier work in Cathedral 9?
What triggers the bonus game in Cathedral 9?
What does the Super Bonus Game offer in Cathedral 9?
| Software Developer: | ELK Studios |
| Theme: | Horror |
| Bonus: | Yes |
| Rating: | 8 |
| Progressive: | No |
| Paylines: | Scatter Pays |
| Wild Symbol: | Yes |
| Columns: | 6 |
| Name: | Cathedral 9 | Mutant Trawlers | Juicy Fruits | Deadamau5 | Tivoli | Book of Relics |
| Provider: | ELK Studios | BB Games | Pragmatic Play | Microgaming | Blueprint Gaming | Red7 |
| Paylines: | Scatter Pays | 243 | 50 | 243 | 10 | 10 |
| Bonus: | Yes | Yes | No | No | No | Yes |
| Free spins: | Yes | Yes | Yes | Yes | Yes | Yes |
| Wild Symbol: | Yes | Yes | Yes | Yes | No | Yes |
| Jackpot: | 25,000 | 3,069 | 5,000x bet | 2,100x | 200000 |
Welcome Bonus
100% up to €450 + 250 Free Spins
Min Deposit
€16
Min Withdrawal
€50
Welcome Bonus
100% up to €450 + 250 Free Spins
18+ | New Players OnlyMin Deposit
€16
Min Withdrawal
€50