- Attractive, well-designed slot with lots of detail
- Popular theme
- Easy-to-understand gameplay
- Very low RTP and narrow betting range
- Super-low maximum win of just 250x
Contents
Introduction
Prepare to blast off to a sparkling planet where other worlds rotate in the distance, comets slice through the inky sky, and sparkling jewels can spell good fortune if luck is on your side. Take along your pickaxe and get ready to mine for treasures, helped along the way by respins and expanding sticky wilds.
Cosmic Jewels theme and storyline
Cosmic Jewels has a similar theme to the popular Starburst slot and is filled with a bounty of sparkling gems on a space-themed background complete with shooting stars and spinning planets. The action is accompanied by an atmospheric soundtrack with swooshing noises and intergalactic sound effects.

Cosmic Jewels RTP and variance
The variance has not been disclosed but played like a medium volatility game when we tried it; however, the RTP is far from middle-of-the-road. At just 93.958 per cent, it is considerably lower than the industry average for this kind of slot.
How to play Cosmic Jewels
If you have played mPlay slots before, this game might look familiar; if not, don’t worry. We will have you shooting for the stars in no time with these handy hints:
- Click the three-bar tab to open the bet settings. Use the plus and minus arrows to set your stake for each spin. The amount you choose is per line, which will be multiplied by the ten fixed paylines to create your total bet.
- This main menu, which is accessed via the downward arrow tab, is where you will find the game’s paytable. Remember that the prizes you win will be affected by how much you choose to bet. The more you stake, the bigger the wins, but remember to always bet responsibly and never stake more than you can comfortably afford to lose. This is especially important as mPlay slots are renowned for having pretty dire RTPs.
- The speaker symbol is the one you need if you want to turn off the soundtrack when you play. The background sounds in this slot are pretty atmospheric but some players prefer to spin in silence - the choice is yours.
Cosmic Jewels bet sizes & paytable wins
The betting options is where this slot lets itself down, as do so many mPlay games. The lowest bet is 0.50, while the maximum stake is 20.00. This maximum is higher than some slots from this maker but is still never going to satisfy players who enjoy even a hint of high-rolling action.
As with many slots, the symbols in this game are split into two sections: the higher payers and those offering lower prizes. The pink, green and purple gems are the lower payers, while the blue, turquoise and pink and yellow gems offer the higher rewards. The starburst symbol is the best of the bunch, offering up to 250x for five-of-a-kind. It is also the wild symbol. Other wins for five-strong combinations are as follows:
- Blue gem = 120x
- Turquoise and pink gem = 60x
- Yellow gem = 50x
- Pink gem = 40x
- Green gem = 25x
- Pink triangle gem = 25x
Cosmic Jewels bonus features
Wilds
Slots with wilds are always popular. If this is a feature you like, you won’t be disappointed by the Cosmic Jewels slot. The wild can substitute for any symbol and appears on the second, third and fourth reels.
Bonus feature
Landing the wild also triggers the slot’s bonus feature. This will see the wild expanding and covering a complete reel while the other reels respin in the hope of landing a winning combination. During this feature, up to another two wilds may appear to activate the respins bonus. There is a maximum of three respins.
Cosmic Jewels review: our verdict
MPlay demo slots are renowned for their attention to detail when it comes to design, with Cosmic Jewels no exception. The background to the reels features some nice touches, such as the gently rotating planets and comets. This adds to the atmosphere of the slot, as does the swooshing soundtrack that is far from the most annoying around.
It is the sound effects and graphics that are undoubtedly the draw for this slot. On the downside, there is certainly limited appeal to the restricted betting options for many players and the RTP is well-below par. The highest win is also just 250x your stake, which is definitely nothing to write home about.
Overall, this is a good-looking slot with plenty of visual appeal. It is just a shame that the entertainment and excitement levels appear to be on completely different planets due to the poor prize potential and stake choices on offer.
Disclaimer: Cosmic Jewels (mPlay) trademark / license is owned by mPlay Games. This site is not endorsed by mPlay Games.
| Slot Name: | Cosmic Jewels (mPlay) |
|---|---|
| Software: | mPlay Games |
| RTP: | 94.00% |
| Volatility: | Low volatility |
| Paylines: | 10 |
| Reels: | 5 |
| Min Bet (all lines covered): | $0.50 (CAD) |
| Max Bet: | $20 (CAD) |
| Top Win: | 250 |
| Features: | Wild Symbol, Expanding Wilds, Respins, Low volatility, 5 Reels |
| Themes: | Space |
| Last Update: | 28/01/2022 |
FAQs
Are there free spins in the Cosmic Jewels slot?
If you are looking for a traditional free spins bonus, you may be very disappointed by the Cosmic Jewels slot. It has limited bonus features and no traditional free spins. It does have respins, although you can only win three of these in one bonus round.
What is the RTP of the Cosmic Jewels slot?
The RTP of this game is a measly 93.958 per cent. This is very low considering that the average theoretical return to player ratio for a slot is around 96 per cent. Of course, if the prize potential of a game is not your primary concern and you are simply seeking a purely entertaining experience, this low RTP may not put you off at all. It is also worth remembering that wins can never be guaranteed when you play an online slot.
Games by Same Maker
| Slot Name | RTP | Volatility | Top Win | Themes |
|---|---|---|---|---|
| Wild West Mystery | 92.05% | Low volatility | 2000 |
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