Apollo Games

Mystery Apollo II

Slots Video Slots Fruit Retro Mystery Joker Classic

Compact Retro Fruit game driven by transforming bonus symbols

SlotRanker Score

/ 99

05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals, and it cannot be bought.

How this score is built

RTP

95%

return to player

Volatility

Low/Medium

variance

Max win

—

top multiplier

Min bet

$0.10

per spin

Reels

27 lines

Player rating

4.9 ★

11 votes

DEMO Play free, no signup

Apollo Games

Embed on your site

4.9 / 5

11 ratings

User ratings are shown separately from the Slot Score unless stated otherwise.

Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.

Payouts & RTP8/10

RTP 95% → 8.0/10

Volatility6/10

low → 6.0/10

Win Potential—

no data

Features7.5/10

12 features → 7.5/10

Game Mechanics4.8/10

f=12 r=3 p=27 → 4.8/10

Context signals (tie-breakers)

Layout4/10

3x3 → 4.0/10

Bet Flexibility6/10

0.1–50 (×500) → 6.0/10

Provider Reputation5/10

provider avg 5.0 → 5.0/10

Popularity0/10

synthetic proxy → 0.0/10

Popularity blends real player search demand (~30 markets) with a catalogue-derived proxy; games without measurable search demand use the proxy alone. Not live play telemetry.

Cite this score

SlotRanker Score: 55 — Mystery Apollo II by Apollo Games

https://slotranker.com/apollo-games/mystery-apollo-ii#score

How to cite

Slot Summary

A Joker among familiar Fruit symbols gives Mystery Apollo II its Retro surface, but the important uncertainty comes from special symbols that can resolve as Wilds, multipliers, Mystery awards, or Respins. Apollo Games compresses those outcomes into a 3x3 format with 27 Criss-Cross lines, a 95% RTP setting, and Low/Medium volatility, making symbol transformation more important than grid size.

How It Plays

Winning routes use the Criss-Cross rule, connecting one position from each of the 3 reels. Matching symbols are evaluated from the leftmost reel.

The small grid does not mean every result is simple. Special symbols can alter the screen after it settles, producing substitution, multiplication, direct awards, or another turn.

Theme & Atmosphere

Classic and Fruit imagery makes the base game immediately recognizable, while Joker, Mystery, and Retro themes frame the special-symbol activity.

The visual concept deliberately resembles a compact traditional machine. Its stranger outcomes arrive through abstract symbols rather than characters, locations, or a narrative bonus scene.

Fruit Retro Mystery Joker Classic

Features & Win Potential

The Random multiplier symbol can resolve into several outcomes, including Wild Multipliers and Respins, so one landing does not always produce the same effect.

Multiplier symbols increase the full-screen win, and multiple multipliers apply successively. The Wild Symbol substitutes for ordinary symbols but not the separate special symbols.

Multiplier Wild Symbol Respins Wild Multipliers Gamble 3 Reels Low/Medium RTP range Bonus symbols Random multiplier Risk/Gamble (Double) game Game history

Spec sheet

Mystery Apollo II at a glance.

Identity

Slot nameMystery Apollo II

StudioApollo Games

Released3/15/2019

Math

SlotRanker Score55

RTP95%

VolatilityLow/Medium

Max win—

Bet range$0.10 – $50.00

Player rating4.9 / 5 · 11 votes

Format

Reels3

Paylines27

Layout3x3

Features

Themes

Expected average based on this slot's 95% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$2.00

Cost per session$2.00

Estimate only, for entertainment purposes — treat gambling as entertainment, not a way to make money, and set a budget you can afford to lose.

How long could a bankroll last on Mystery Apollo II? We simulate thousands of sessions from this game's published RTP and volatility — the long-run math, not a prediction of your next spin.

Bankroll ($)Bet per spin ($)Speed

Volatility tier: Medium-Low

Running simulation…

How this works

Each simulated spin either misses or returns a win drawn from a log-normal distribution, with the hit rate and spread set by the slot's volatility tier (Medium-Low). The model is calibrated so the average return equals this slot's published RTP (95.00%), with wins capped at its top multiplier (1,000×).

This is a simplified, parametric model of the game's math — not its real paytable. It exists to make the house edge visible over many sessions, so the numbers above are averages across thousands of runs, never a forecast of one.

This is math, not a prediction. Real sessions vary wildly, and no strategy changes a game's built-in house edge. Play for fun, set limits, and never bet more than you can afford to lose.

Where to play Mystery Apollo II

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Compare Mystery Apollo II with other games

	Mystery Apollo II Score 55This game	Jokrz Wild UltraNudge GigaBlox Score 81	Jump Score 78	Expanding Joker Score 76	Jackpot Joker Score 70
Identity
Studio	Apollo Games	Bang Bang Games	Habanero	Gaming Corps	Tada Gaming
Released	3/15/2019	6/15/2023	9/25/2018	9/4/2024	2/5/2024
Math
RTP	95%	96.1%	96.66%	96.18%	—
Volatility	Low/Medium	High volatility	High volatility	Medium volatility	Medium volatility
Max win	—	7,216×	—	2,000×	15,000×
Format
Reels	3	6	5	5	5
Layout	3x3	6x4	5x3	5x3	5x3
Paylines	27	4096	1024	243	5
Min bet	0.1	0.2	0.25	0.1	0.1
Max bet	50	20	5000	100	100
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	—	✓	✓	✓	✓
Scatter symbol	—	✓	—	✓	—
Multiplier	✓	✓	—	✓	✓
Bonus game	—	—	—	✓	—
Respins	✓	—	✓	—	✓

Every number is shown as a delta against Mystery Apollo II.

Comparing against

Mystery Apollo II

Apollo Games

RTP

95%

Max win

—

Score

Jokrz Wild UltraNudge GigaBlox

+ Free Spins+ Scatter− Respins

+ Free Spins− Multiplier

+ Free Spins+ Scatter+ Bonus Game− Respins

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