Joker Stacks Slot: Comprehensive Data Analysis
Core Game Specifications
| Attribute | Value |
|---|---|
| Developer | iSoftBet |
| Release Date | January 18, 2018 |
| Theme | fruit, joker, classic slot |
| Layout | 5 reels with 3‑4‑3‑4‑3 rows |
| Paylines | 15 |
| Bet Range | 0.15 to 15 (currency units) |
| Core Mechanics | Stacked Wild Jokers, Sticky Stacked Wilds in Free Spins, Free Spins feature |
| developer | iSoftBet |
| platform | HTML5, desktop and mobile compatible |
Mathematical & Payout Model
Return to Player (RTP)
96.60%
Volatility
Medium
Max Win Potential
16712x
Symbols & Paytable Hierarchy
| Tier | Symbol(s) | Function & Value |
|---|---|---|
| Low Tier | cherry, lemon, melon | Provides small, frequent wins to maintain gameplay. |
| Mid Tier | horseshoe, bell | Thematic items offering moderate payouts. |
| High Tier | blue 7, red 7 | Highest paying symbols. Top hits available with full combinations. |
| Wild | Joker | Acts as a substitute / feature trigger per game rules. |
| Scatter | star bonus | Triggers free spins / bonus round when enough appear. |
Joker Stacks Bonus Features Mechanics
| Feature | Trigger | Initial Award | Core Mechanic | Enhancement/Retrigger |
|---|---|---|---|---|
| Stacked Wild Jokers | random on base game spin | reels 1, 3, or 5 may become fully stacked wilds | ||
| Free Spins | landing three star bonus scatters on reels 1, 3, and 5 | 15 free spins | collect Joker wilds to turn reels into sticky stacked wilds | collect 6 wilds for reel 1 sticky wild +2 spins; next 10 wilds for reel 3 +2 spins; next 10 wilds for reel 5 +1 spin |
Frequently Asked Questions (FAQ)
| How do I trigger free spins? | Land three star bonus symbols on reels 1, 3, and 5 to trigger 15 free spins. |
| What does the Joker wild do? | The Joker substitutes for other symbols except the scatter and may appear as a stacked wild on reels 1, 3, or 5. |
| How do sticky wilds work in free spins? | Collect 6 Joker wilds to make reel 1 sticky wild and gain 2 extra spins; collect 10 more for reel 3 and 2 spins; collect 10 more for reel 5 and 1 spin. |
| What is the RTP of the game? | The return to player rate is 96.6%. |
| What is the maximum win? | The maximum win is 16712 times the stake. |
Joker Stacks Performance Summary: Strengths vs. Weaknesses
Strengths
- High maximum win potential
- Engaging sticky wild mechanics
- Above‑average RTP
Weaknesses
- Medium volatility may deter low‑risk players
- Bet range capped at 15 may limit high‑rollers
Overview
Joker Stacks is a fruit‑themed video slot by iSoftBet featuring a 5‑reel, 15‑payline layout and a 3‑4‑3‑4‑3 reel structure. It offers a 96.6% RTP, medium volatility, stacked wild Jokers, sticky wilds in free spins, and a maximum win of 16712x the stake.
Rachel Pine is our slots expert who has worked in the online gambling industry for 10+ years. Over the course of her career, Rachel has reviewed more than 30,000 slots.
Latest posts by Rachel Pine (see all)
- Top 6 Low Volatility Slots in the UK - September 30, 2025
- Best Online Casino Strategies That Actually Work - September 21, 2025
- Volatility in Online Casino Games - July 28, 2025