Double up slots (also called gamble feature pokies) allow players to risk their winnings after a successful spin in exchange for a chance to double or multiply the payout. This mechanic is common in many online slots, but not every game includes it.
In this guide, we break down the best double up slot games available to New Zealand players and explain how the feature actually works.
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What Is a Double Up Feature in Slots?
A double up feature is an optional gamble round that appears after a winning spin. Players can choose to risk their win for a chance to increase it.
Typical formats include:
- Red or black card (2x payout)
- Suit selection (up to 4x payout)
- Higher or lower prediction systems
Important point:
You are never required to gamble your winnings — you can always cash out instead.
Top 5 Double Up Slot Games in NZ
#1. Book of Dead (Play’n GO)
Book of Dead is a classic Egyptian-themed slot with a built-in gamble feature allowing players to risk winnings for higher rewards.
Key features:
- Expanding symbols in bonus game
- Gamble option (red/black or suit)
- Free spins bonus round
3000 NZD
+ 200 free spins
#2. Medusa Megaways (NextGen)
A Megaways slot with multiple bonus mechanics and a gamble feature for base game wins.
Highlights:
- Free spins + multipliers
- Megaways reel system
- Gamble option for winnings
2500 NZD
+ 125 free spins + 1 bonus round
#3. Mystical Santa Megaways (StakeLogic)
A Christmas-themed Megaways slot with high volatility and a gamble feature that can multiply wins up to 5x.
Features:
- Gamble round for extra risk/reward
- 117,649 ways to win
- Wild multipliers
#4. Doom of Egypt (Play’n GO)
Another Egyptian-themed slot with multiple features including a structured gamble mechanic.
Key points:
- Multipliers and wilds
- Red/black or suit gamble option
- Free spins feature
50 free spins
NO WAGER (Exclusive)
5 Game of Thrones 243 Ways (Microgaming)
A branded slot featuring a coin-flip style gamble system after wins.
Features:
- 243 ways to win
- Gamble feature after base wins
- High max win potential
7000 NZD
+ 200 free spins + 20 no deposit spins (Exclusive)
Other Notable Double Up Slots
- Fruletta (Endorphina)
- Cabin Fever (Microgaming)
- Esmeralda (Playtech)
- Cash Bandit 2 (RTG)
- Magic Spinners (Fugaso)
- Gem Blast (Endorphina)
How the Gamble Feature Works
The double up feature is triggered after a win in the base game. Players are then offered a choice:
- Guess correctly → winnings double (or more)
- Guess incorrectly → winnings are lost
Common formats:
- Red vs black card
- Higher vs lower value
- Suit-based selection
This creates a high-risk, high-reward mechanic that is entirely optional.
Strategy & Risk Consideration
While the feature is designed to increase winnings, it does not change the underlying RTP of the slot.
Key considerations:
- High volatility risk
- No guaranteed profit increase
- Best used for entertainment, not strategy
Final Thoughts
Double up slots add an extra layer of excitement to standard pokies by allowing players to risk winnings for potential higher payouts. While the feature can be rewarding, it also increases variance significantly.