Mortal Oath slot review
In feudal Japan, samurai had this charming little bonding ritual called keppan. You'd slice your finger open, write a sacred oath in your own blood, then burn the document to ashes, stir those ashes into a cup of water, and drink it. 🩸
The logic was straightforward: break your oath, the gods mess you up. Some warlords collected dozens of keppan – basically hoarding blood-soaked paper like loyalty punch cards. 💀
This is Mortal Oath slot, and it comes from Hacksaw. We're looking at demon-hunting, blood moons 🌘, and bonus features complex enough to need their own instruction manual.
Gameplay
The 5x3 grid sits in front of a dark Japanese shrine at night, with the demon hunter standing guard to the left. Moody. Atmospheric. It summons a Sengoku horror vibe.
The grid has 9 paylines. The RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.
RTP needs to be considered in conjunction with a game’s volatility rate. is 96.32%, volatility is rated medium/high, and the max multiplier is 10,000x. The max win is $350,000, with bets ranging from $0.10 to $35. This game’s fiat only, so crypto players are sitting this out (sorry).
Three coin symbols (copper, silver, and gold) anchor the low-paying tier. They all pay the same: 1x for a 5-of-a-kind, 0.3x for 4-of-a-kind, and 0.1x for 3-of-a-kind.
The mid-paying symbols are a scroll, a katana, and a Samurai helmet. Identical payouts: 1.5x for a 5-of-a-kind, 0.5x for 4-of-a-kind, and 0.2x for 3-of-a-kind.
Three demon characters make up the high-paying tier. The white beast pays 3x for a 5-of-a-kind, the dark hunter pays 5x, and the horned demon leads with 10x.
In the base game, these demons don't carry multipliers. They just behave like regular high-paying symbols. Their multipliers only activate during the bonus.
The Wild symbol replaces all symbols in the paytable and only shows up in the base game. It's also the highest payer on the reels: 20x for a 5-of-a-kind.
The Bonus Scatter triggers the Night of the Hunt feature when 3 land at the same time. It doesn't appear during the bonus.
Features
CORRUPTED HUNTER:
The Corrupted Hunter is a base game Wild with some serious extras. It expands to cover the entire reel, but only if the expansion would be part of at least one winning line.
When it expands, it displays a random multiplier (anywhere from 2x up to 100x) and comes with 3 empty stacks. Each time the Corrupted Hunter is part of a winning line, one stack fills. Multiple wins on the same spin can fill multiple stacks at once.
Once all 3 stacks are filled, the Corrupted Hunter stays sticky and triggers a respin. The other reels spin again while it holds position. PS: No new Corrupted Hunters can land during respins.
Up to 3 Corrupted Hunters can appear per spin (1 per reel max). If multiple are present with all stacks filled, respins activate one at a time from left to right. When multiple Corrupted Hunters are part of the same win, their multipliers get added together.
NIGHT OF THE HUNT:
This is the main event. Land 3 Bonus Scatter symbols and the grid transforms completely – regular symbols vanish, and only non-paying placeholders and bonus feature symbols can land.
The Total Multiplier starts at 0. It builds as bonus feature symbols hit the grid, and when the feature ends, it's applied to your bet for the final payout. You've got 3 lives that refill every time a bonus feature symbol lands.
Each life represents one spin without a bonus symbol. Three consecutive dry spins and you're done. There are several bonus feature symbol types, and they all interact with each other.
Bonus Demon symbols land with multipliers and stay sticky on the grid. Yellow Demons carry 1x, 2x, or 3x. Blue Demons range from 4x to 6x. Green Demons go from 7x to 9x.
Collector:
The Collector scoops up all Bonus Demon multipliers on the grid and adds them to itself, without removing the originals. It acts as a Bonus Demon and stays sticky. If it lands on an empty grid, it defaults to 1x.
Gun Ability:
The Gun Ability targets 1 Bonus Demon and fires up to 3 times. Each shot doubles the target's multiplier. Only one demon can be targeted per Gun Ability. If there aren't any Bonus Demons on the grid, it does nothing.
Gates of Hell:
This bonus symbol lands with a 5x multiplier and stays on the grid. Every time a bonus feature symbol lands, its multiplier doubles. When a life is eaten up, the Gates of Hell multiplier gets added to the Total Multiplier bar and the symbol is removed.
Only one Gates of Hell bonus can be active at a time.
Guardian Statue:
The Guardian Statue lands with 4 stacks (1 pre-filled). It fills another stack each time a bonus feature symbol lands. Lose a life before all 4 are filled and it's removed on the next spin. Fill all 4, and it stays sticky, unlocking the possibility of Divine Retribution.
Divine Retribution (Triggered Effect):
The nuclear option. It triggers when all 3 lives are consumed and an activated Guardian Statue is on the grid. It doubles all Bonus Demon multipliers, adds them to the Total Multiplier bar, wipes every sticky symbol off the grid, and refills your lives back to 3.
Only one Divine Retribution can happen per bonus game.
One more detail: if the entire grid fills with Bonus Demon symbols (no empty positions remaining), a 500x multiplier gets added to the Total Multiplier and the feature ends.
ANTE BET & BUY BONUS:
The Bonushunt FeatureSpins cost 3x your bet per spin and make each spin 5 times more likely to trigger the bonus (RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.
RTP needs to be considered in conjunction with a game’s volatility rate. 96.3%).
The Corrupted Hunter FeatureSpins cost 50x per spin and guarantee at least 1 Corrupted Hunter every spin (RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.
RTP needs to be considered in conjunction with a game’s volatility rate. 96.35%). Yeah, 50x per spin. That's not a typo.
Then there's the Night of the Hunt direct buy at 100x your bet, which drops you straight into the bonus (RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.
RTP needs to be considered in conjunction with a game’s volatility rate. 96.38%).
Performance
I might have struggled to get my head around how the features work, but at least the gameplay was easy and glitch-free.
Maximum Win
The max multiplier is 10,000x, which means you can scoop the max win of $350,000 when playing at the maximum bet of $35. The minimum bet is $0.10.
Conclusion
Money making lives in the Night of the Hunt bonus – specifically in how the Bonus Demon multipliers interact with the Collector, Gun Ability, and Gates of Hell.
A well-timed Gun Ability tripling a Green Demon, combined with a Collector stacking everything, is where the serious numbers come from.
The Corrupted Hunter delivers decent mid-range base game hits (up to 100x multiplier), but the 10,000x ceiling requires the bonus.
The Bonushunt FeatureSpins work like a traditional ante bet: modest cost bump for higher trigger frequency. This suits grinders who want to accelerate their path to the bonus without torching their bankroll.
The Corrupted Hunter FeatureSpins are a different beast. You're paying 50x every single spin to guarantee expanded Wilds, not bonus access. That only makes sense if you're specifically chasing multiplier-boosted base game hits.
The Night of the Hunt direct buy is the cleanest option for anyone who just wants the bonus without the preamble.
Mortal Oath slot is a mechanically dense bonus game wrapped in a Sengoku shell. Play it if you enjoy complex feature interactions and don't mind reading the rulebook. Skip it if you want simplicity or if crypto's your thing.
Slot Details
Game Provider: Hacksaw
Game Type: Video Slots
PaylinesPaylines are preset lines that run across the reels, and when you land matching symbols on them, that will result in a payout. The more paylines, the more ways you can win, but also the higher your bet per spin.: 9
RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.
RTP needs to be considered in conjunction with a game’s volatility rate.: 96.32%
Volatility RateSlot games can have low, medium, high, or extremely high volatility rates (or a combination thereof).
The less volatile the game, the more often it should pay out, but the lower the amount, the less the payout, as this is in keeping with the risk you’re taking. Volatility rate should be considered in conjunction with a game’s RTP.: Medium/High
Bonus Round: Yes
Progressive: No
Free Rounds: Re-spins
Max Multiplier: 10,000x
Max Win: $350,000
Published by
BitStarz, award-winning Bitcoin Casino
