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Endorphina · Slot Review

Golden Ox — Full Review & Free Demo

3.3/5
Play for Real →
RTP
96.00%
Volatility
Average
Max Win
100x
Provider
Reels
5
Paylines
50
Bet Range ($,€,£)
0.50 - 500
Rating
3.3/5
Released
Feb 2021

Golden Ox Slot Overview

Golden Ox is an oriental-themed slot from Endorphina built on a 5x4 grid with 50 paylines. Released back in February 2021, it was timed around the Chinese Lunar New Year, with the golden bull front and centre as the star of the show. Visually it leans into that red-and-gold colour scheme you see in loads of Chinese-themed slots, and there are traditional symbols like koi fish, lanterns, lotus flowers and firecrackers across the reels.

My first impression? Proper straightforward. No complicated mechanics or layered bonus systems here. Medium-low volatility, an RTP of 95.89%, and a max win of 100x your stake. I quite liked the calm vibe, but I will say upfront, the win potential is modest compared to most slots I play these days.

Symbols and Paytable

High-value symbols include firecrackers (the top payer at 2x your bet for five of a kind), a traditional lantern, koi fish, a lotus flower and a red envelope. Low-value card symbols round things out: A, K, Q, J, 10 and 9. You only need two of the themed symbols to get a payout, which is decent, but three card symbols are needed for those lower-tier wins.

The golden bull acts as the Wild and shows up on reels 2 through 5 only, so it never forms its own winning line. A gold coin is the Scatter, landing exclusively on reels 1, 2 and 3. Payouts across the board are quite small; even five firecrackers only give you 2x your total bet. Honestly, the paytable feels a bit stingy for my taste.

Symbol Payouts

icon 1
Wild
icon 2
Fireworks
Highest-paying regular symbol; five of a kind awards 2x the base bet.
5x2
4x1
3x0.3
2x0.1
icon 3
5x1.5
4x1
3x0.3
2x0.1
icon 4
Koi Fish
High-value symbol paying 1.5x for five of a kind.
5x1.5
4x1
3x0.3
2x0.1
icon 5
5x1.5
4x0.5
3x0.2
icon 6
Red Envelope
Mid-value themed symbol paying 1.5x for five of a kind.
5x1.5
4x0.5
3x0.2
icon 7
5x1
4x0.4
3x0.2
icon 8
K
Low-value card symbol.
5x1
4x0.4
3x0.2
icon 9
5x1
4x0.3
3x0.1
icon 10
J
Low-value card symbol.
5x1
4x0.3
3x0.1
icon 11
5x1
4x0.2
3x0.1
icon 12
9
Low-value card symbol.
5x1
4x0.2
3x0.1
icon 13
Scatter
Appears on reels 1, 2 and 3; landing three awards 2x the base bet and triggers 10 free spins.
3x2

Bonus Features

Landing three gold coin Scatters on the first three reels triggers 10 Free Spins plus a 2x bet payout. Here is the highlight: any Wild that lands during free spins becomes a Sticky Wild and stays locked in place for the rest of the round. That can fill up the grid nicely if you get lucky. Catching three more Scatters during the feature adds 5 extra spins, so there is re-trigger potential.

After any win, you can take a punt on the Risk Game. Pick a card higher than the dealer's and you double your win; get it wrong and you lose the lot. Classic Endorphina stuff. There is also a Bonus Pop feature which can instantly buy into the free spins round, though availability depends on the casino you play at.

I found the sticky wilds during free spins to be the most enjoyable part. Base game can drag a bit because payouts are low and there is not much going on beyond waiting for those three Scatters. Not the most thrilling bonus suite, but the sticky mechanic keeps things interesting once you trigger it.

Bonus Buy Options

Bonus Buy Free Spins
Free Spins
Land 3 Scatter symbols on reels 1, 2 and 3 to trigger 10 free spins. Wilds that land during free spins become sticky and stay in place until the round ends. Landing 3 more scatters during the feature awards 5 extra spins.
Bonus Buy Risk Game
Risk Game
After any win you can gamble your payout in a double-or-nothing card game. Pick a card higher than the dealer's to double your winnings.
Bonus Buy Bonus Pop
Bonus Pop
Allows players to instantly trigger the Free Spins feature for a price, subject to casino and jurisdiction availability.

Volatility, RTP and Max Win

Golden Ox runs at 95.89% RTP with medium-low volatility. Wins come fairly often but they tend to be small. Max win sits at 100x your total stake, which is proper low by modern standards. For comparison, plenty of slots from the same era offer 5,000x or more. So you are not going to see any life-changing screens here.

Fair enough if you prefer steady, low-risk sessions. I found my balance stayed relatively stable over a long demo run. Not everyone will enjoy such a tight ceiling on wins though, and that 100x cap might put off anyone looking for bigger swings.

Ryan Cole’s Verdict

Final Verdict

Golden Ox is a decent, no-fuss slot that does exactly what you would expect from a Chinese New Year theme. Sticky wilds in free spins are the standout bit, and the medium-low volatility makes it suitable for a relaxed session when you do not want massive swings draining your balance. Graphics are clean, the oriental soundtrack is pleasant enough, and the 50 paylines keep wins ticking over.

My main gripe is the 100x max win. For a lot of players, myself included, that cap feels too tight and takes some excitement out of the chase. Bonus features are also fairly basic compared to what other providers offer now. Still, if you enjoy a simple spinner with a calming theme and you are not chasing huge payouts, it is a perfectly fine way to spend a session. Just keep your expectations grounded, mate.
3.3
★★★☆☆
out of 5
✓ Pros
Sticky wilds during free spins boost payouts
50 paylines on a 5x4 grid
Low-medium volatility suits casual sessions
Risk game lets you double any win
Bonus Pop feature available
✗ Cons
Max win capped at just 100x
Bonus features feel a bit basic
RTP slightly below average at 95.89%
Ryan Cole
Ryan Cole
Lead Casino Slots Analyst
5+ years analysing online slots for the UK market. Every game is played for a minimum of 500 demo spins before publication. No affiliate bias — ever.
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Golden Ox FAQ
How do the sticky wilds work during free spins?
Every Wild symbol that lands on the reels during the Free Spins round stays locked in its position for the remaining spins. They keep substituting for other symbols, so the more wilds you collect the better your chances of landing multiple wins.
Can you re-trigger extra free spins in the bonus round?
Yes. Landing three more Scatter symbols during free spins awards 5 additional spins on top of the original 10.
What is the Bonus Pop feature and is it always available?
Bonus Pop lets you buy straight into the Free Spins feature for a set price instead of waiting for three Scatters. Its availability depends on the casino and your jurisdiction, so it may not be accessible everywhere.
Why does the Wild only appear on reels 2 to 5?
The golden bull Wild is restricted to reels 2, 3, 4 and 5 by design. It cannot land on reel 1, which means it only helps complete combinations rather than starting them. This keeps the game balanced given the 50 paylines.
How does the Risk Game work after a win?
After any payout you can choose to gamble it in a card game. You need to pick a face-down card that is higher than the dealer's card. Get it right and your win doubles; get it wrong and you lose everything from that round.