A 6-reel, 4-row slot from Push Gaming where mystery stacks nudge and reveal shared symbols across 20 paylines, with a Free Games feature triggered by scatter symbols. RTP 96.25%, high volatility.

How stacks unlock bigger wins. Mystery Mission - To The Moon takes you across a 6-reel, 4-row grid where wins form on 20 fixed paylines. Released in 2022 by Push Gaming, the game wraps its mechanical theme in a space adventure: you'll spot an astronaut helmet, robots both large and small, and an alien overlord among the paying symbols. Mystery Stacks land on any base spin and nudge to fill their reel completely, revealing a shared symbol that pays across all lines. This high-volatility setup means wins come less often and can be much bigger.
Who thrives on this mission? This slot suits players who can handle dry spells between wins and have a bankroll to match the high volatility. The base game stakes range from NZ$0.10 to NZ$100, giving both cautious and aggressive players a foothold. You'll find the game most rewarding if you're drawn to space themes and enjoy watching mystery symbols build toward a big reveal. Players seeking frequent, smaller wins or those on a tight budget may find the swings frustrating.
Free spins where stacks keep paying. The Free Games feature is the heart of every winning session. Land 3, 4, 5 or 6 Wild Moon scatters and you'll trigger 8, 10, 12 or 14 free spins respectively. During the bonus round, Mystery Stacks persist: any that land nudge to fill their reel and reveal a symbol each spin. Once three or more are present, they turn gold and keep revealing symbols every spin, paying on all 20 lines regardless of position. The background darkens to signal you've entered this heightened moment.
Read MoreKnow the exact mechanics, limits and average return before committing your stake.
You'll know what happens when you spin, win and trigger the bonus round.
The payouts shown below are in money at a NZ$1 bet. Land more of the same symbol across a payline to earn more.
When the bonus begins. Land 3, 4, 5 or 6 Wild Moon scatters anywhere to start 8, 10, 12 or 14 free spins. Mystery Stacks stay active across the round: each spin reveals a symbol that nudges to fill its reel, and once 3 or more stacks turn gold, they reveal a fresh symbol every spin, paying on all 20 lines regardless of position.
Mystery Mission - To The Moon bonus purchase tiers. Buy your way into free spins with five options ranging from NZ$1 020 to NZ$3 320 at your example bet. Three Scatters awards 8 spins at 96.30% RTP, while Random Free Spins costs NZ$2 000 but carries the highest RTP at 96.65%, even cheaper than the larger paid tiers.
Activate the extra 20% stake feature. Toggle Push Bet before a round to raise your stake by 20%, boosting the chance that free spins trigger. Your wins still calculate against your base bet, not the raised amount. Push Bet changes the symbols sitting on the reels to whatever showed at the end of your last game at that bet level.
Where stacks appear between bonuses. On every base game spin, Mystery Stacks can land on any reel and nudge to fill it completely, converting into a shared paying symbol across all 20 lines. This mechanic runs independently of whether you trigger free spins or not.
Buy eight free spins upfront at NZ$1 020 on a NZ$10 bet. Your Mystery Stacks land and nudge on each spin, revealing a paying symbol across all 20 lines.
Pay NZ$1 610 at NZ$10 to trigger ten free spins instead. Mystery Stacks persist and keep revealing symbols throughout, turning gold once you land three or more.
Twelve free spins unlock for NZ$2 370 at NZ$10. Stacked symbols reveal and compound their pay across the grid as the round climbs toward its end.
Fourteen free spins cost NZ$3 320 at NZ$10. Your Mystery Stacks go gold and keep revealing on each spin, maximising the chance of multi-spin alignment.
Random Free Spins costs NZ$2 000 at NZ$10 and gives you a random scatter count. This unpredictable path carries the highest RTP of the five purchase options.
Raise your stake by twenty percent to NZ$12 on a NZ$10 base bet, improving your odds of landing scatters and triggering free spins naturally.
Mystery of the Nile returns 96.35% and pays to 10,000 times stake; Mystery Museum pays up to 62,019 times stake with 96.58% RTP.
RTP is the average return to players over a very large number of spins. Each figure below applies only to the specific condition shown next to it. The standard game runs at 96.25%; other modes and paid features carry their own RTP.
When does the bonus arrive? The bonus round arrives randomly on any spin. No pattern or strategy changes when the free spins come. Plan your session around this unpredictability rather than expecting the feature within a set number of spins.
Will the RTP apply to my play? Your results over one session belong entirely to chance. The RTP of 96.25% describes what all players across all sessions collectively see, not what you'll experience today. You might win or lose more than the average.
The max win versus what you'll see. The maximum win of NZ$1,000,000 sits at the ceiling of what the game allows. Most sessions never approach this figure. The ceiling exists in the game design but stays unreached for the vast majority of players.
Spin free in demo mode, or put down real money and chase the actual wins.
You're checking the basics before you start spinning on this slot
Budget before the reels spin. Set a budget before you start playing and stick to it. Choose a deposit limit or loss limit through your account to make sure you never spend more than you planned.
Know when to walk away. Plan when you will stop playing before your first spin. Decide in advance to walk away after a win, not to chase losses by playing longer than you meant to.
Account limits that work for you. Use the deposit and loss limits your account offers. Session time reminders can help you keep track; cool-off periods give you space to step back if you need it.
When to take a break. If the game stops feeling fun or you find yourself playing more than you planned, pause or self-exclude. Contact the Problem Gambling Foundation of New Zealand or the Gambling Helpline New Zealand for support.
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