Hacksaw Gaming

Stack'em

Slots Video Slots Horror Retro Forest Animals Cartoon Fun

Cartoon sequel pairing Cluster Pays with column-based Multipliers

Filter our catalog for Reel Modifiers and 213 games come back — Stack'em is one of them.

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

96.2%

return to player

Volatility

High volatility

variance

Max win

10,000×

top multiplier

Min bet

$0.20

per spin

Reels

0 lines

Player rating

4.1 ★

16 votes

DEMO Play free, no signup

Hacksaw Gaming

Embed on your site

4.1 / 5

16 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 96.2% → 9.0/10

Volatility9/10

high → 9.0/10

Win Potential8/10

x10000.00 (10000×) → 8.0/10

Features10/10

16 features → 10.0/10

Game Mechanics8/10

f=16 r=5 p=n/a → 8.0/10

Context signals (tie-breakers)

Layout5/10

5x6 → 5.0/10

Bet Flexibility6/10

0.2–100 (×500) → 6.0/10

Provider Reputation6.6/10

provider avg 6.6 → 6.6/10

Popularity7.5/10

synthetic proxy → 7.5/10

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: 83 — Stack'em by Hacksaw Gaming

https://slotranker.com/hacksaw-gaming/stackem#score

How to cite

Slot Summary

Released in 2021 as a follow-up to Stick 'Em, Stack'em moves Hacksaw Gaming's cartoon cast onto a 5x6 Cluster Pays grid with a much harsher mathematical target. High volatility and a x10000 ceiling frame the risk, while winning symbols remain on the board and non-winners clear away. Column values then combine into a Multiplier, making the size and placement of each cluster equally important.

How It Plays

A winning cluster needs at least five matching symbols connected horizontally or vertically. Non-winning symbols then disappear while winners fall and new symbols enter the vacant spaces.

This unusual removal rule preserves the winning group instead of clearing it. Continued connections can enlarge the stack and raise the reel values used for the final Multiplier.

Theme & Atmosphere

Cartoon and Retro styling return the Stick 'Em cast to a stranger Forest setting, mixing playful character art with a mild Horror edge.

The contrast matters because the presentation looks light while the high volatility math is severe. Familiar animated figures sit against a x10000 payout ceiling.

Horror Retro Forest Animals Cartoon Fun

Features & Win Potential

Cluster Pays determines qualifying wins, while Increasing Multipliers translate stacked winning symbols into reel values. Values from the affected reels are added for the award.

Respin Locking Win keeps successful symbols in play as other positions refresh. The interaction gives each cluster a chance to grow before the sequence ends.

High volatility Free Spins Increasing Multipliers Multiplier Scatter Symbol Wild Symbol Respins Cluster Pays 5 Reels Reel Modifiers Bonus Buy Additional Free Spins RTP range 96% RTP Free Spins Multiplier Respin Locking Win

Bonus & Free Spins

Three Scatter Symbols award 5 Free Spins. Each winning cluster increases the Free Spins Multiplier according to the number of symbols in that win.

Special bonus symbols can add Free Spins or increase the Multiplier. A Bonus Buy also provides direct access to the feature under supported game configurations.

Spec sheet

Stack'em at a glance.

Identity

Slot nameStack'em

StudioHacksaw Gaming

Released5/14/2021

Math

SlotRanker Score83

RTP96.2%

VolatilityHigh volatility

Max win10,000×

Bet range$0.20 – $100.00

Player rating4.1 / 5 · 16 votes

Format

Reels5

Paylines0

Layout5x6

Expected average based on this slot's 96.2% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$3.04

Cost per session$3.04

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 Stack'em? 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 (96.20%), with wins capped at its top multiplier (10,000×).

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 Stack'em

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Compare Stack'em with other games

	Stack'em Score 83This game	Trickstar Spins Score 57	Rabid Randy Score 69	Barkin Mad Score 67	Top Cat Score 62
Identity
Studio	Hacksaw Gaming	Yggdrasil Gaming	NetEnt	Barcrest	Blueprint Gaming
Released	5/14/2021	1/23/2025	10/8/2024	5/26/2015	12/10/2016
Math
RTP	96.2%	94%	95.05%	96%	92.48%
Volatility	High volatility	Medium volatility	High volatility	Medium volatility	Medium volatility
Max win	10,000×	800×	19,000×	—	10,000×
Format
Reels	5	3	5	5	5
Layout	5x6	3x3	5x5	5x3	5x3
Paylines	0	5	20	10	20
Min bet	0.2	0.1	0.1	0.1	0.2
Max bet	100	100	250	400	200
Features
Progressive	—	—	—	—	✓
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	—	—	✓	✓
Scatter symbol	✓	—	✓	✓	✓
Multiplier	✓	✓	—	✓	✓
Bonus game	—	✓	✓	✓	✓
Respins	✓	✓	—	—	✓

Every number is shown as a delta against Stack'em.

Comparing against

Stack'em

Hacksaw Gaming

RTP

96.2%

Max win

10,000×

Score

+ Bonus Game− Free Spins− Scatter

+ Bonus Game− Free Spins− Multiplier− Respins

+ Bonus Game− Respins

+ Progressive+ Bonus Game

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01Does Stack'em use traditional paylines?

No. Stack'em uses Cluster Pays, requiring at least five matching symbols to connect horizontally or vertically.

02How do Multipliers work in the base game?

Each reel receives a value based on its winning stacked symbols, and the active reel values are added before multiplying the cluster award.

03How are Free Spins triggered?

Three Scatter Symbols award 5 Free Spins, displayed as remaining hearts above the grid.

04What is the maximum win in Stack'em?

Stack'em has a listed maximum win of x10000, a 96.2% RTP, and high volatility.

Series

Stack Em

View all 7 games

Game	Year	RTP	Volatility	Slot Score
Stick EmHacksaw Gaming	2019	96.1%	Medium volatility	71
Stack'emCurrentHacksaw Gaming	2021	96.2%	High volatility	83
Stack'em ScratchHacksaw Gaming	2022	60.12%	—	35
Canny the Can and the Book of TimeHacksaw Gaming	2022	94.34%	High volatility	69
Keep ‘Em CoolHacksaw Gaming	2023	94.07%	Medium volatility	66
Drop 'EmHacksaw Gaming	2023	96.21%	High volatility	82
Keep ‘EmLatestHacksaw Gaming	2024	94.25%	Medium volatility	68

Stick Em
Hacksaw Gaming · 2019
RTP96.1%Score71Medium volatility
Stack'emCurrent
Hacksaw Gaming · 2021
RTP96.2%Score83High volatility
Stack'em Scratch
Hacksaw Gaming · 2022
RTP60.12%Score35
Canny the Can and the Book of Time
Hacksaw Gaming · 2022
RTP94.34%Score69High volatility
Keep ‘Em Cool
Hacksaw Gaming · 2023
RTP94.07%Score66Medium volatility
Drop 'Em
Hacksaw Gaming · 2023
RTP96.21%Score82High volatility
Keep ‘EmLatest
Hacksaw Gaming · 2024
RTP94.25%Score68Medium volatility