Sci-Fi and Space Bonus Buy Slots
Sci-Fi and Space Bonus Buy Slots include 78 games in the database, and every title has a free demo. The collection has an average RTP of 95.65%, while listed maximum wins reach up to 200,000x the bet.
Game list
| Name | Provider | RTP | Volatility | Max win |
|---|---|---|---|---|
| Xperiment Gold | Not listed | 98.21% | Not listed | Not listed |
| Bubbles | Not listed | 97.24% | Not listed | Not listed |
| OOF The Goldmine Planet | Not listed | 97% | Not listed | Not listed |
| Starburst XXXtreme | Not listed | Not listed | Not listed | 200,000x |
| Max Megaways 2 | Not listed | Not listed | Not listed | 147,620x |
| Apollo Pays Megaways | Not listed | Not listed | Not listed | 116,030x |
Browse the full collection to compare the available games, or use the broader Sci-Fi and Space Slots category for more space-themed titles.
Best Sci-Fi and Space Bonus Buy Slots
The strongest stated RTP figures in this category belong to Xperiment Gold at 98.21%, Bubbles at 97.24% and OOF The Goldmine Planet at 97%. These figures are comparisons based on the listed game data, not guarantees of returns.
RTP can vary between casino versions of the same slot. Check the in-game information screen for the version you are viewing before comparing it with another title.
How we rank Sci-Fi and Space Bonus Buy Slots
The database allows games to be compared using measurable details such as RTP, volatility and max win. The supplied checklist for narrowing the list is:
- Compare the stated RTP.
- Check the volatility rating.
- Set a budget before opening a demo.
- Try the free demo first.
The Bonus Buy label identifies games where this feature is listed in the category data. It does not indicate a particular outcome or make a game more suitable for every player. For more titles with this feature, see Bonus Buy Slots.
Sci-Fi and Space Bonus Buy Slots by provider
The largest provider catalogues in this collection are:
- ELK Studios: 20 games
- Pragmatic Play: 8 games
- Push Gaming: 8 games
These counts show how many listed titles come from each provider in the database. They do not describe the quality, RTP or volatility of every game from that provider.
Top features in Sci-Fi and Space Bonus Buy Slots
Bonus Buy
Bonus Buy is one of the category’s defining filters. The database groups these sci-fi and space games together because the feature is listed for the titles in this collection. Availability and details should be checked in the individual game information.
Free Spins
Free Spins are among the feature terms associated with this category. The supplied data does not list Free Spins details for individual games, so check each title’s in-game information screen for its exact mechanics.
Multipliers
Multipliers are another listed feature term. No game-by-game multiplier values are supplied here, so the maximum multiplier for a specific title is not listed.
Cluster Pays
Cluster Pays also appears among the category’s feature terms. The supplied data does not identify which individual games use Cluster Pays, so consult the game information screen when checking a title.
Highest RTP Sci-Fi and Space Bonus Buy Slots
By stated RTP, the leading entries are:
- Xperiment Gold — 98.21%
- Bubbles — 97.24%
- OOF The Goldmine Planet — 97%
RTP may differ by casino version, so these figures should be treated as the values listed in the database. Confirm the active version’s RTP in the game information screen.
Biggest max win Sci-Fi and Space Bonus Buy Slots
The highest listed maximum wins are:
- Starburst XXXtreme — 200,000x
- Max Megaways 2 — 147,620x
- Apollo Pays Megaways — 116,030x
These are stated multiples of the bet. A max win is a game limit, not a prediction of results, and the supplied data does not list the conditions required to reach any of these values.
FAQ
How many sci-fi and space bonus buy slots are in the database?
The database lists 78 sci-fi and space bonus buy slots, with an average RTP of 95.65%. Every game has a free demo.
Which sci-fi and space bonus buy slots have the highest RTP?
By stated RTP, the top entries are Xperiment Gold at 98.21%, Bubbles at 97.24% and OOF The Goldmine Planet at 97%. RTP can vary by casino version, so check the game information screen.
Which sci-fi and space bonus buy slots have the biggest max win?
The highest listed max wins are Starburst XXXtreme at 200,000x, Max Megaways 2 at 147,620x and Apollo Pays Megaways at 116,030x. These are multiples of the bet. For another title comparison, see the Gem Trio slot review.
Which providers make the most sci-fi and space bonus buy slots?
The largest catalogues are ELK Studios with 20 games, Pragmatic Play with 8 and Push Gaming with 8.
18+ only. Play responsibly; demos use virtual credits and no real money.