In this review
Lost Mystery Chests slot
Updated: 22.07.2025
Reviewed by: Joe Booth
Betsoft has created a new ancient Egypt-themed slot with a surprisingly cool design. In Lost Mystery Chests you will get Mystery Chests which show cash prizes, special symbols and premium symbols. There is also a bonus round and a Bonus Buy with 3 purchase options. In this review, you will find out what this slot is about, as we will tell you in detail about everything that it consists of: the mathematical model, bonuses, the betting range and the design.
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Release Date:24.02.2022
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Volatility:
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RTP:95.4%
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Multiplier:Yes
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Max. win:2,520x
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Bonus game:No
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Free spins:Yes
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Scatter Symbol:Yes
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Wild symbol:Yes
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Symbol Stacked:No
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Jackpot Game:No
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Slot lines:10
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Slot reels:3
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Layout:3-3
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Stakes range (€/£/$):0.1 to 150
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Slot Theme:
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Technology:JS, HTML5
Licensed and tested by
How to play
The playing field with 3 reels in 3 rows gives 10 lines to create prize combinations. You get plenty of action with Mystery symbols throughout the gameplay, and the high hit rate gives you plenty of combos to keep you going. You will receive 3-5 Mystery Chests at a random time in the base game and they will remain locked until the spin stops. These symbols will then show Premium symbols, Instant cash prizes, Wilds, or Scatters.
To start this journey to ancient Egypt you need:
- Open Lost Mystery Chests at your favorite casino
- Click on the menu button to view the paytable and rules
- Choose a bet: from €0.10 to €150
- Spin the reels!
Lost Mystery Chests RTP and Volatility
Medium volatility comes with 95.37% RTP.
Here you will be dealing with medium volatility and a somewhat low 95.37% RTP. However, you get plenty of action with special Mystery symbols throughout all stages of the game, and the high hit rate will give you plenty of combinations to keep you going. Casual players looking for some medium-risk fun can enjoy what's on offer here, but this release won't even register on the high-risk players' radar.
Theme
Even though we've seen the ancient Egyptian-themed designs so many times and are already pretty tired of them, we really like the visual representation of Lost Mystery Chests! All the action takes place inside a beautifully lit tomb with a bunch of ancient signs on the walls and jewels on the floor. The explorer character, happy that he was able to get into the tomb, stands to the right of the translucent 3x3 playing field in a stone frame.
Beautifully drawn symbols appear on the reels. Among the premium symbols are ankh, a pyramid, and a chest, and among the low-paying symbols are pieces of stone with images of the eye of Horus, a scarab, and a bird. Chests are Mystery symbols and you can get from 3 to 5 of these symbols on each spin. They can randomly reveal high-paying symbols, instant cash prizes, and wild or scatter symbols.
Mobile compatibility
Do not want to be at home during the gameplay? Then use the mobile mode of this slot machine! Betsoft Gaming created this slot machine using JS and HTML5 technologies, which allows it to load quickly on all modern mobile devices and adapt to small screen sizes.
About Betsoft Gaming
This great-looking slot was created by Betsoft Gaming. They make content with spectacular graphics, creative intro videos, and intriguing storylines that work great on any device. Staying active in a dynamic field like gambling is essential, which is why they have moved from traditional 3D slots to cinematic gambling. Their notable games include SugarPop 2: Double Dipped, Tiger's Claw, and The Slotfather 2.
Bonus Rounds & Free Spins
Bonus Round
As soon as 3 or more Scatter Treasure Chests land on the playing field on 1 spin, the slot will trigger the bonus round. You will win 6, 8 or 10 Free Spins for 3, 4 or 5 Scatter symbols respectively. Each free spin includes 3-9 guaranteed Mystery Chests. This feature triggers organically every 126 spins on average and you will get an 81.58% hit rate during it.
Bonus Buy
Non-UK gamblers and anyone who is eligible can use the Bonus Buy option. It has 3 options for instant access to the bonus round. You can pay 40x, 53x or 66x to get 6, 8 or 10 free spins respectively.
Lost Mystery Chests Demo play
Being able to test something before buying it is very important and luckily you can try this game for free! Lost Mystery Chests comes with a free demo mode. While playing in this mode, you can spin the reels, get prize combinations and bonus features by betting with "fun" coins instead of real money. Of course, when playing in the free mode, it will be impossible to withdraw the funds won, since they are not real.
Max Win
Find lost chests to win 2,520x!
Mystery chests appear in abundance in this slot and on every spin of the bonus round you are guaranteed to land 3-9 chests. Because of this, you can get a 2,520x max win pretty quickly. The potential of the slot is somewhat small, so this game is unlikely to suit high-risk/reward players.
Lost Mystery Chests Video Review
Overall Rating
In the "Theme" section, we talked about how much we love the visual presentation in this slot, but the slightly smiling dude-explorer on the right side of the playing field should have been animated. He doesn't even blink no matter what happens and it's a little scary. But perhaps he has seen all this too many times before and nothing surprises him anymore. Well, we can't blame him.
You will see a lot of lost mister chests, not least due to the fact that on each spin of the bonus round you are guaranteed to get from 3 to 9 chests. Because of this, the gameplay looks alive and lucrative. Betsoft seems to enjoy catering to casual gamblers and we're happy about that as many providers have almost given up on this niche due to the strong high risk/reward trend.
Hits
Randomly spawn 3-5 chests in the base game
Bonus Round with 3-9 chests per spin
Misses
RTP below industry average
Looks like reskinning of Gold Tiger Ascent
FAQ
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What bonus features does Lost Mystery Chests have?
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This game is all about getting Mystery Chest symbols which can unlock high-paying symbols, instant cash prizes, and wild or scatter symbols. If they open the scatter symbols, the slot will activate the Bonus Round 3-9 guaranteed Mystery Chests on each free spin.
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What about free mode?
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There is a Demo mode for this slot machine so you can try it for free at any time!
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What is the Return to Player (RTP) in Lost Mystery Chests?
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The RTP of this medium volatile slot is 95.37%, which is slightly below the industry average.
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