Quick answer
Space Gems. Rockblocks is a Mascot Gaming slot (2024) with 94.9% RTP, low volatility and a 750x max win. It uses cluster pays with multipliers, tumbling reels and gamble feature. An official free demo is available. RTP can vary by casino.
Key specs
- RTP
- 94.9%
- Volatility
- Low
- Max win
- 750x
- Grid
- 6×6
- Pays
- Cluster pays
- Released
- 19 December 2024
- Bet range
- $0.20–$40
- Jackpot
- None
Top-rated casinos (check the game is available)
We haven't confirmed which partner carries this game.
- Aurivo Casino100% up to $1,000 + 200 Free Spins30x bonusGet 200 spins + 100% at Aurivo Casino (opens in new tab)
18+. New customers. Min dep $20. 30x bonus wagering. Max bet $5. 30 days. 200 spins on Book of Dead at $0.20. Credited in daily batches of 20 over 10 days. Full T&Cs apply.
Key terms
18+. New customers only. Min deposit $20. 30x bonus wagering requirement. Max bet $5 while wagering. Free spins on Book of Dead at $0.20 per spin. Spins credited in daily batches of 20 over 10 days. Offer valid 30 days. Full T&Cs apply. Please gamble responsibly.
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18+. New customers. Min dep $20. No wagering. 7 days. 150 spins on Big Bass Bonanza at $0.10. Full T&Cs apply.
Key terms
18+. New customers only. Min deposit $20. No wagering on winnings. Free spins on Big Bass Bonanza at $0.10 per spin. Offer valid 7 days. Full T&Cs apply. Please gamble responsibly.
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18+. New customers. Min dep $50. 40x bonus wagering. Max bet $10. 60 days. Full T&Cs apply.
Key terms
18+. New customers only. Min deposit $50. 40x bonus wagering requirement. Max bet $10 while wagering. Cashback: 10% of net casino losses each week (Monday to Sunday), paid as cash with no wagering every Monday, up to $500 a week. Offer valid 60 days. Full T&Cs apply. Please gamble responsibly.
Game availability varies by casino and country.
Themes:
Free demo Members
Try Space Gems. Rockblocks with play money before deciding whether to play for real. Official Mascot Gaming demos are free for GambGenius members.
How to play Space Gems. Rockblocks (members only)
Wins pay for groups of matching symbols that touch horizontally or vertically. Larger clusters pay more, and winning clusters usually disappear to make room for new symbols.
Space Gems. Rockblocks is played on a 6×6 grid with cluster pays.
- Set your stake. Choose your total bet per spin between $0.20 and $40. Wins are paid as multiples of this stake.
- Check the paytable. Open the game's info screen to see what each symbol pays and the exact rules for this version.
- Spin. Each spin's result is decided by a certified random number generator, independent of previous spins.
The full Space Gems. Rockblocks guide: how winnings work, 4 features and 3 strategy tips
- Your stake plan: a $50 budget → about $0.50 a spin (low volatility)
- What 94.9% RTP costs per $100 wagered: $5.10 on average
- 4 features explained: multipliers, tumbling reels, gamble feature, cluster pays
- Stake plans for $20 to $250 budgets, checked against the $0.20 minimum bet
- 2 slots with the same style and a higher RTP (up to 98%)
- Strategy tips and a session planner for Space Gems. Rockblocks
Free · no card · 18+ only
Never sold · export or delete any time · What do members get?
How winnings work (members only)
What 94.9% RTP costs per $100 wagered, the 750x max win at a $1 stake
The top prize is capped at 750x your stake. On a $1 spin that is $750; on $0.20 it is $150. When the cap is reached the round usually ends immediately.
Because wins don't depend on lines, every symbol in view can count towards a pay. The paytable lists how many matching symbols each tier needs.
Multipliers are applied to wins as they land; in many games several multipliers add together or multiply each other, which is where the largest wins come from.
Because winning symbols tumble away and are replaced, one paid spin can produce a chain of wins. All of them count towards that spin's total.
What 94.9% RTP means
Expected return = stake × 94.9%
Over $100 of total bets, the long-run average loss is $5.10
RTP is a long-run average across millions of spins. Any single session can finish far above or below it, especially on a low volatility game.
Features explained (members only)
4 features explained: multipliers, tumbling reels, gamble feature, cluster pays
Multipliers
Multipliers increase a win by a set factor, such as 2x or 10x. They can be attached to symbols, applied to a whole spin, or grow during a feature, and are a main driver of the biggest wins.
Tumbling reels
After a win, the winning symbols are removed and new ones fall into their place. This can create several consecutive wins from a single paid spin. Also called cascades or avalanches.
Gamble feature
After a win you can risk it on a double-or-nothing guess, such as the colour of a card. It does not improve the game's long-term return.
Cluster pays
Wins are formed by groups of matching symbols touching horizontally or vertically, rather than along lines.
Strategy tips (members only)
- Size your stake to the volatility. Low volatility means frequent, smaller wins and a smoother balance. It suits longer sessions and bonus wagering, but big multipliers are rare. A simple rule: bring at least 100 spins' worth of budget, so a $50 budget suggests a stake of about $0.50.
2 more tips and a session planner
- Bonus wagering: at 94.9% RTP, clearing $1,000 of wagering costs about $51.00 on average. Check the bonus terms, as some casinos exclude specific games. Run your numbers in the wagering calculator.
- Set limits before you spin. Decide your loss limit and session time in advance and stop when you reach either. No pattern or betting system changes the outcome of a spin.
More on this in slot RTP and volatility explained and bankroll management.
Does it fit your budget? (members only)
Stake plans for $20 to $250 budgets, checked against the $0.20 minimum bet
For low volatility we suggest a budget of at least 100 spins. This is what that means for Space Gems. Rockblocks (bets from $0.20 up to a maximum bet of $40).
| Budget | Stake a spin | Bet range | Average cost of 100 spins |
|---|---|---|---|
| $20 | $0.20 | Fits | $1.02 |
| $50 | $0.50 | Fits | $2.55 |
| $100 | $1 | Fits | $5.10 |
| $250 | $2.50 | Fits | $12.75 |
Averages only: a short session can end far above or below them. Set a loss limit before you play.
Same style, better RTP (members only)
2 slots with the same style and a higher RTP (up to 98%)
Slots with the same mechanic (cluster pays) and volatility (low) as Space Gems. Rockblocks, with a higher published RTP. Casinos can still run lower versions of any of them.
Calaveras Explosivas98% RTP · +3.1 pts
Chunky Carlo's Money Mania96.2% RTP · +1.3 ptsQuestions
Frequently asked questions
Who makes Space Gems. Rockblocks?
Space Gems. Rockblocks is developed by Mascot Gaming and was released in 2024.
What is the RTP of Space Gems. Rockblocks?
The default RTP of Space Gems. Rockblocks is 94.9%.
Is Space Gems. Rockblocks high volatility?
Space Gems. Rockblocks is rated low volatility. Low volatility means frequent, smaller wins and a smoother balance.
What is the max win on Space Gems. Rockblocks?
The maximum win on Space Gems. Rockblocks is 750x your stake, which is $750 on a $1 spin.
Can I play Space Gems. Rockblocks for free?
Yes. GambGenius members can play the official Mascot Gaming demo of Space Gems. Rockblocks free on this page. It uses play money only, so demo wins can't be withdrawn, and it is for players aged 18 and over.
Does Space Gems. Rockblocks have a bonus buy?
No bonus buy is listed for Space Gems. Rockblocks in the sources we checked.
Where this data comes from
- mascot.games Provider
- slotcatalog.com Slot database
Specs come from the provider's own site and 1 independent slot database. Casinos can run lower-RTP versions, so always check the game rules before you play.
Game artwork © Mascot Gaming, shown to identify the game.
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