Bone Raiders

Bone Raiders Slot Review

Slot Provider: Relax Gaming

RTP: 96.1% | Variance: Medium-High | Maximum Win: 10,000x

Our Score: 7.2

Play at Grand Ivy Casino
QUICK LINKS: Game Information | Where To Play | Full Review | Testing Notes | Tips For Players | About The Developer

WHY YOU CAN TRUST THIS REVIEW: The information and opinions on this page are the result of an comprehensive process of information gathering and live game testing by the gambling experts who work at allslotsites.com. Find out more here.

About Bone Raiders

Reviewed by:

Published Date: 6th August 2024

How We Review Slot Games

We test and rate all slot games across 5 criteria, assigning a score out of 10 for each and an overall score that is an average of the 5. To build an accurate assessment of each game we gather information from the supplier and play in real play or demo mode. Find out more.

Bone Raiders by Relax Gaming is played on 5 reels and 3 rows for the base game and up to 7 reels and 7 rows for the bonus game, with a clever expanding grid mechanic. The RTP is 96.1% and the volatility is medium to high. If you’re really lucky, you might snag the max win of 10,000x your stake, but either way, if you make it to the bonus round you’ll unlock some powerful ‘feature’ symbols, shooting multipliers around like nobody’s business.

Bone Raiders Game Information

  • Release Date: 27.08.24
  • RTP: 96.1%
  • Variance: Medium-High
  • Maximum Win: 10,000x
  • Progressive Jackpot: No
  • Reels: 5
  • Rows: 3
  • Paylines: 243
  • Minimum Stake: £0.10
  • Theme: Fantasy
  • Features: Expanding ReelsFree SpinsMultipliers
  • Format: 5-ReelWin Ways

Testing Notes: Here’s What Happened When We Played Bone Raiders

IMPORTANT: To give you an accurate assessment of the games we review our writers play 200 spins. Whilst this is a useful tool to help us review games and to give an example of what might happen when you play, keep in mind that 200 spins is only a very small sample and cannot be used to accurately predict what might happen over another 200 spins. The outcome of all slots play is always random.

Boom Or Bust? Our Session By The Numbers

Test spins and results analysis by Mark Wadie.

Results from 250 spins for free on Bone Raiders (Relax Gaming) test servers.

  • Stake Size: 1
  • Start balance: 5,000
  • End balance: 4,906.40
  • Hit Rate: 20.4% (51 winning spins in 250)
  • Biggest Win: 161x
  • Bonus Round: 1

Bone Raiders looks great, as we have come to expect from Relax Gaming. The skeletal paytable characters are fun and the castle backdrop is nicely drawn.

But what was it like to play?

I extended the session to 250 spins to see if I could unlock that bonus round but no luck. Proof that this is game is going to be a tough one to crack. The base game doesn’t have much going on, just the doubling multiplier / respin combo that will be familiar to anyone who has played Yggdrasil’s DoubleMax games. This, combined with a paytable with good value in it (5 top payers are worth 100x) made me think you would get some decent wins in the base game. That wasn’t quite the case. My biggest was a 24.1x from 5 consecutive wins that pushed the multiplier up to 32x. I did also see a 20x and a 10x, but that was all.

Bone Raiders Big Win
A 24.1x win with a 32x multiplier in testing

The win rate overall was 20.4% but I should say the distribution was very uneven. For the first 100 spins the rate was down at around 16%, then it improved considerably for the second half. So a classic high variance slot in other words. Read on to find out how that elusive free spins round would work.

What We Liked

  • Progressive multiplier doubles with every win
  • Re-spins triggered with every win
  • Nice fantasy game design with castle
  • High values in paytable - up to 100x for 5 OAK
  • Expanded grid in bonus round

What We Didn't like

  • Very volatile and streaky win distribution in testing
  • Hard to unlock the bonus round

Bone Raiders Review Scores

  • Theme and Design 7
  • RTP and Variance 7
  • Maximum Win 7
  • Symbols and Paytable 8
  • Features and Gameplay 7

What Our Reviewer Says ...

"A tough play but fun theme and doubling multipliers with re-spins are a good reason to give this one a spin!"

Overall Score: 7.2

Theme & Design

Our Score 7

Bone Raiders has a cuter design style than you might expect from the name alone! It’s played looking down onto a grid, which could be a kind of archaeological dig site or the entrance to a tomb. It’s a little ambiguous, but I suppose that’s part of the joy of excavating! A moat and dry stone walls surround the grid that’s made of sandstone. 

Bone Raiders by Relax Gaming
Bone Raiders Game Screen

Once the bonus round triggers you enter into what’s definitely some kind of tomb. The walls are lit by flickering torches and lava flows around the reels. Overall, it’s a beautifully executed design, that offers something a little different.

RTP and Variance

Our Score 7

What is RTP?

RTP (Return to Player) refers to the amount a game will pay out in cash prizes expressed as a percentage of all the money wagered on that game. For example, a 96% RTP means a game will pay out £96 for every £100 wagered. This is an average number and will vary from one session to the next.  Read more here.

What is Variance?

Variance refers to how far a game will deviate from its RTP over time. High variance games deviate a lot and produce uneven win distributions and unexpected windfalls. Low variance games provide a more stable and even distribution of wins. Read more here.

Bone Raiders has a pretty respectable RTP of 96.1% and medium to high volatility. If you’ve got a fairly generous bankroll then you should have no trouble weathering any dry spells, before hopefully landing some bigger wins.

Maximum Win

Our Score 7

What Is Maximum Win?

Maximum win refers to the maximum amount a player can win from one spin. It is expressed as a multiple of the stake. For example, where the maximum win is 100,000x, from a £1 stake, the maximum win would be £100,000.  

This slot has a pretty decent top payout of 10,000x your stake. Often max wins don’t seem achievable but there are some quite generous payouts just for five of a kind wins (up to 100x) so the 10,000x max win doesn’t feel out of reach.

Symbols and Paytable

Our Score 8

Bone Raiders from Relax Gaming features a 5-reel, 3-row grid with 243 ways to win in the base game, while the bonus expands to a 3×3 grid that can grow up to 7×7. Wins are created by landing 3 or more identical symbols on adjacent reels starting from the leftmost reel. 

Bone Raiders Paytable
The paytable with 100x for 5 top paying symbols

The game includes 8 pay symbols plus a scatter. The low-value symbols are diamonds, clubs, hearts, and spades, awarding 0.3x the bet for 5 of a kind. The premium symbols are four skeletal characters, paying between 10x and 100x the bet for 5 of the same symbol. 

There are no wild symbols, but the game includes a respin feature with rising multipliers to boost winnings.

Features and Gameplay

Our Score 7

Bone Raiders interestingly doesn’t feature a wild symbol, but it does have a couple of really interesting mechanics that it’s a good idea to take a look at.

Respin Multiplier

In the base game, whenever you make a win, it triggers a respin. With every respin, the win multiplier doubles. The respins continue until no new wins are made. Once the respins stop, the multiplier resets to 1x.

Note: All symbols drop off the reels before a respin, not just the ones from the win. 

Bonus Game

If you land 3 scatter symbols on reels 2, 3, and 4 then it triggers the Bone Raiders bonus round. The grid expands to 7×7 with an active centre of 3×3, the remainder made up of blocked off squares. The scatter symbols that triggered the bonus game will then turn into feature symbols.

Feature symbols target other positions on the grid, depending on what their effect is. If the targeted position is a blocked off square then it becomes unlocked. If the targeted position has a coin then the coin’s value is doubled. 

You always start the feature with 2 spins, which reset back to 2 whenever a feature symbol lands. Every time you destroy 20 blockers, you increase the value of the reset by 1 spin. The feature symbols work as shown below:

  • Magic Staff: targets one symbol between three and seven times.
  • Bomb: targets all symbols surrounding it once. 
  • Cannon: shoots at a random number of symbols (up to whole grid). 
  • Compass: targets a pattern of symbols, like a row, column, or diagonal. 

Once a feature has finishing performing its action it is turned into a coin with a value of 1x the bet. 

The Final Verdict

Bone Raiders at first appears a pretty simple game, perhaps down to the pared back graphics, but there are some pretty fun mechanics at play here. The feature symbols that come to life in the bonus round are the star of the show. Each one shooting spaces and causing chaos (in the best possible way). 

The coin doubling effect whenever a coin is shot is a nice touch that has the potential to cause some big wins. Overall, this is a simple slot game with a decent RTP and a volatility that isn’t terrifyingly high. The max win of 10,000x your stake is plenty big enough to attract mega prize hunters too!

Useful Tips When Playing Bone Raiders

Remember, online slots are games of chance, there is NO strategy that can improve your odds of winning. However, reading our review and following these tips will help you get the most out of your time playing this slot game.

1. Play Low Stakes

With volatile slots like this one it is best to play low stakes. The win rate dipped as low as 16% in testing so it can burn down your balance fast.

2. Look For BONUS Scatters

The BONUS scatters are needed to unlock the bonus game where the grid expands and feature symbols come into play.

3. Watch The Multiplier

You can see the value of your multiplier on the board to the left of the grid. It doubles with every win and re-spin!

4. Play At Our Recommended Slot Sites

We have chosen the sites on this page because they all scored high in our reviews and they are licensed by the UK Gambling Commission. That makes them fair and safe places to play slots.

Who Made Bone Raiders?

  • Name: Relax Gaming
  • Established: 2010
  • UK License: Remote 037462-R-319357-014
  • Total Games: 100 +
  • Known For: High variance, high max win, progressive jackpots, innovative game mechanics
  • Popular Slots: Money Train, Temple Tumble, Dream Drop Jackpots, Hellcatraz
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