
Fission Superstar X
69KS
Released May 21, 2019by Turbo Pelvis 3000 inc.Very Positive(81% of 172 Steam reviews)
Blast off in Dr. Leopold's bomber in this relentless rogue-lite shooter. Tour the solar system on a desperate randomly generated bomb run. Face impossible odds trying to achieve the demented dream of an insane scientist.
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About Fission Superstar X

Experience a weird, relentless solar tour in this randomly generated space rogue-lite. Travel from Planet X to Earth while fending off endless waves of attackers. What is the payload? A "superstar" nuclear bomb. What is the mission? To make her famous! Does it makes sense? Ask the "scientist" who built that thing!

While working on his latest nuclear bomb, Dr. Leopold had a revelation. He wasn't creating a weapon of mass destruction; he was creating a nuclear superstar! Was it the radiation sickness or was Leopold always insane like this? Who knows and who cares? Now you must do his bidding and tour the solar system with Celine, his dear bomb. Who would not be thrilled to host the concert of a nuclear bomb under the control of a clearly insane scientist? Everybody it seems, that's why they are all trying to destroy Leopold's creation.

Fight using ranged and melee weapons while blocking attacks with your shield.
Manage your bomber and make difficult choices: Do you repair that flaming part, heal that nearly-dead crewman or upgrade your stats?
Unlock 9 playable ships.
Over 100 different possible crew members, from humans to space bears.
64 different weapons, from puny rifles to nuclear mortars.
Over 20 different scientifically inaccurate environments, such as space whale pods and planetary atmospheres.
Over 70 enemy types with variations including, Scavengers, Fascist Cats and Pugs from space, Giant insects and Dr. Leopold's experimental rejects.
Fight giant bosses on 8 different worlds from Pluto to Earth.
Upgrade your ships, modify your famous payload, assemble the perfect crew and buy destructive weapons.
Choose your challenge: do you dock at this station and spend 3 minutes dodging an angry Planetoid or do you skip that shop for an easier run through a colorful space aurora?
Did that giant insect-shrimp thing at saturn give you a beating before it died in chunks of meat? Just hit that detonate button and blow up your nuclear superstar. That'll show the others.
Die a lot, master the game and win a well-deserved victory.
Work for the solar system's ultimate genius, Dr. Leopold from Planet X.Saving the universe is common, there is nothing of that sort here, it's just an absurd quest for nuclear celebrity.
Game details
Game details
Released
Developer
Publisher
Platforms
Controller support
Full
Steam Deck
Verified
Steam rating
Very Positive (81%)
Age ratings
PEGI 12ESRB MUSK 16CRL 18
Game modes
Languages
Fission Superstar X player count & reviews
81% positive reviews all-time · 1 peak players in the last 30 days.
Fission Superstar X — frequently asked questions
How many people play Fission Superstar X?
Fission Superstar X peaked at 1 concurrent players on Steam in the last 30 days (highest on Jul 23, 2026). The player chart on this page updates daily.
How can I get Fission Superstar X at a discount?
Create a free price alert on this page and KingsPrice will email you when Fission Superstar X drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
Minimum:
- OS *: Windows 7
- Processor: 1.33 GHZ 2 cores
- Memory: 1 GB RAM
- Graphics: Graphics Card with Pixel Shader/Vertex Shader 2.0
- DirectX: Version 9.0c
- Storage: 100 MB available space
- Sound Card: Any
Recommended
Recommended:
- OS: Windows 10
- Processor: 2.6 GHZ 4 cores
- Memory: 2 GB RAM
- Graphics: Graphics Card with Pixel Shader/Vertex Shader 2.0
- DirectX: Version 9.0c
- Storage: 100 MB available space
- Sound Card: Any












