Qora Games

3 Reactors of Doom

An apocalyptic reactor slot with combinable bonus systems.

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

96.09%

return to player

Volatility

High volatility

variance

Max win

6,000×

top multiplier

Min bet

$0.05

per spin

Reels

50 lines

Player rating

3.8 ★

13 votes

DEMO Play free, no signup

Qora Games

Embed on your site

3.8 / 5

13 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 & RTP9/10

RTP 96.09% → 9.0/10

Volatility9/10

high → 9.0/10

Win Potential7.6/10

x6000.00 (6000×) → 7.6/10

Features8/10

11 features → 8.0/10

Game Mechanics5.9/10

f=11 r=5 p=50 → 5.9/10

Context signals (tie-breakers)

Layout5/10

5x4 → 5.0/10

Bet Flexibility6/10

0.05–50 (×1000) → 6.0/10

Provider Reputation7/10

provider avg 7.0 → 7.0/10

Popularity5/10

synthetic proxy → 5.0/10

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: 74 — 3 Reactors of Doom by Qora Games

https://slotranker.com/qora-games/3-reactors-of-doom#score

How to cite

Slot Summary

An expandable reel grid serves as the failing machinery in Qora Games' 3 Reactors of Doom. The frozen ruins of 2040 give the game a survival setting, while separate reactor effects can collide in the same bonus. The central event is a combined activation, where expansion, multipliers, and jackpot collection share the round.

How It Plays

Ordinary play uses five reels, four rows, and 50 paylines. Winning combinations run from left to right beginning on the leftmost reel, while biohazard coins serve a separate triggering role.

Each biohazard coin color corresponds to a reactor, and a landing coin can activate its associated feature. Different colors can trigger together, determining which reactor rules enter the bonus.

Bonus & Free Spins

Expansion awards 5 free spins on a larger 5x6 board with nudging wilds. The separate Multiplier feature also awards 5 free spins, with its multiplier starting at 1x and increasing by 1 each spin.

The Jackpot feature awards 10 free spins in which coins reveal letters for the prize names. Two activated reactors combine in a Super Feature; activating all three produces the Mega Feature with 10 free spins.

Spec sheet

3 Reactors of Doom at a glance.

Identity

Slot name3 Reactors of Doom

StudioQora Games

Released

Math

SlotRanker Score74

RTP96.09%

VolatilityHigh volatility

Max win6,000×

Bet range$0.05 – $50.00

Player rating3.8 / 5 · 13 votes

Format

Reels5

Paylines50

Layout5x4

Features

Themes

Expected average based on this slot's 96.09% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$0.78

Cost per session$0.78

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 3 Reactors of Doom? 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: High

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 (High). The model is calibrated so the average return equals this slot's published RTP (96.09%), with wins capped at its top multiplier (6,000×).

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 3 Reactors of Doom

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Compare 3 Reactors of Doom with other games

	3 Reactors of Doom Score 74This game	Don’t Hit Plz! Score 89	Zombie aPOPalypse MultiPop Score 87	Apocalypse Super Nudge Score 88	Money Train 3 Score 84
Identity
Studio	Qora Games	Max Win Gaming	AvatarUX	NoLimit City	Relax Gaming
Released	—	4/24/2024	9/29/2022	7/23/2024	9/22/2022
Math
RTP	96.09%	96.32%	96.01%	96.03%	96.1%
Volatility	High volatility	High volatility	High volatility	High volatility	High volatility
Max win	6,000×	25,000×	20,000×	20,000×	100,000×
Format
Reels	5	5	5	6	5
Layout	5x4	5x5	5x4	6x4	5x4
Paylines	50	3125	2048 (Bothway)	4096	40
Min bet	0.05	0.1	0.2	0.2	0.2
Max bet	50	20	50	100	10
Features
Progressive	—	—	—	—	—
Wild symbol	✓	—	✓	✓	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	✓	✓	✓	✓	✓
Bonus game	—	✓	—	—	✓
Respins	—	✓	—	—	✓

Every number is shown as a delta against 3 Reactors of Doom.

Comparing against

3 Reactors of Doom

Qora Games

RTP

96.09%

Max win

6,000×

Score

+ Bonus Game+ Respins− Wild

Zombie aPOPalypse MultiPop

Apocalypse Super Nudge

+ Bonus Game+ Respins

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