Pragmatic Play

Timber Stacks

Slots Video Slots Nature Forest Animals Fish Wildlife

Wilderness tumble slot with a randomly expanding reel set

Among the features listed for Timber Stacks is Multiple Reel Sets, which 96 games in our catalog carry.

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

96.5%

return to player

Volatility

High volatility

variance

Max win

10,000×

top multiplier

Min bet

$0.20

per spin

Reels

3125 lines

Player rating

4.2 ★

14 votes

DEMO Play free, no signup

Pragmatic Play

Embed on your site

4.2 / 5

14 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 96.5% → 9.0/10

Volatility9/10

high → 9.0/10

Win Potential8/10

x10000.00 (10000×) → 8.0/10

Features10/10

17 features → 10.0/10

Game Mechanics7/10

f=17 r=5 p=3125 → 7.0/10

Context signals (tie-breakers)

Layout5/10

5x4 → 5.0/10

Bet Flexibility8/10

0.2–240 (×1200) → 8.0/10

Provider Reputation7.2/10

provider avg 7.2 → 7.2/10

Popularity5.6/10

search demand p48 + proxy blend (70/30) → 5.6/10

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: 80 — Timber Stacks by Pragmatic Play

https://slotranker.com/pragmatic-play/timber-stacks#score

How to cite

Slot Summary

Timber Stacks puts its clearest decision before the spin: use the Bonus Bet or Bonus Buy, or let the standard tumble sequence reach free spins through Scatters. Pragmatic Play then shifts attention to the grid, where winning symbols disappear and a reel can drop to add space after the tumble chain ends. The 96.5% RTP and x10000 ceiling frame a high-volatility game whose defining idea is expansion, not a fixed 3125-way layout.

How It Plays

Matching symbols pay from left to right, then Cascading removes the winning symbols and drops replacements into their positions. This can create several results from one spin.

When no further combination remains, one reel may drop into a newly added bottom row. Repeated expansions can take the grid from its starting size to 10x5.

Theme & Atmosphere

Timber Stacks uses Animals, Forest, Nature, and Wildlife imagery to connect its reel behavior with falling timber and an expanding woodland play area.

Fish, owls, bears, wolves, and a mountain Wild keep the wilderness subject legible, while the collapsing reel action gives the title its literal meaning.

Nature Forest Animals Fish Wildlife

Features & Win Potential

Cascading wins clear symbols before the Reelset Changing event is considered. If expansion activates, one stack falls and additional symbols enter above it.

Multiple Reel Sets and Colossal Reels describe the game's changing footprint, while Symbol Swap and Wild substitution support combinations inside the enlarged play area.

High volatility Free Spins Scatter Symbol Wild Symbol Cascading Multiple Reel Sets 5 Reels Bonus Buy Multiway (+1024)Symbol Swap RTP range 96% RTP Avalanche Colossal Reels Grid Bonus Bet Reelset Changing

Bonus & Free Spins

Free Spins begin when at least 4 Scatter symbols land, awarding no fewer than 8 spins. Grid expansion continues to operate during the bonus.

The Bonus Buy costs x120 the stake in supported jurisdictions and forces at least 4 Scatters onto the following spin to open Free Spins.

Screenshots

3 gameplay frames

Gameplay screenshot of Timber Stacks (1 of 3)

Gameplay screenshot of Timber Stacks (2 of 3)

Gameplay screenshot of Timber Stacks (3 of 3)

Spec sheet

Timber Stacks at a glance.

Identity

Slot nameTimber Stacks

StudioPragmatic Play

Released11/6/2023

Math

SlotRanker Score80

RTP96.5%

VolatilityHigh volatility

Max win10,000×

Bet range$0.20 – $240.00

Player rating4.2 / 5 · 14 votes

Format

Reels5

Paylines3125

Layout5x4

This game is searched most in Australia, United Kingdom, and United States.

Expected average based on this slot's 96.5% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$2.80

Cost per session$2.80

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 Timber Stacks? 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 (96.50%), 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 Timber Stacks

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Compare Timber Stacks with other games

	Timber Stacks Score 80This game	Kingfisher Rising Score 81	Alaskan Fishing Score 76	Kodiak Kingdom Score 71	Big Salmon Run Score 70
Identity
Studio	Pragmatic Play	Wishbone Games	Games Global	Just For The Win	Arrows Edge
Released	11/6/2023	9/5/2024	8/9/2015	10/20/2021	11/6/2023
Math
RTP	96.5%	96.25%	96.63%	94.06%	95.6%
Volatility	High volatility	Medium/High	Medium volatility	High volatility	High volatility
Max win	10,000×	6,000×	—	25,000×	—
Format
Reels	5	5	5	6	5
Layout	5x4	5x4	5x3	6x4	5x3
Paylines	3125	20	243	4096	15
Min bet	0.2	0.2	0.3	0.2	0.3
Max bet	240	5	15	100	240
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	—	✓	—	✓	—
Bonus game	—	—	✓	—	—
Respins	—	✓	—	—	—

Every number is shown as a delta against Timber Stacks.

Comparing against

Timber Stacks

Pragmatic Play

RTP

96.5%

Max win

10,000×

Score

+ Multiplier+ Respins

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