Fission Superstar X
Released May 2019 · delisted
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.
81% positive · 172 reviews
Not yet
Removed from storefront
High confidence
Not yet
Removed from storefront
High confidence
Where to buy
Steam
Can't confirm — worth a look
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Evaluation
Fission Superstar X has been removed from the Steam store. On July 17, 2023, the developer posted a farewell notice announcing that the game would be delisted after July 21, 2023. The developer framed this as the end of the project — the game can no longer be purchased. The store data confirms this: no purchase options are currently available. The game launched on May 21, 2019 and received a small content patch in July 2019 (adding environmental variety, new enemy types, and rebalancing), but no further major updates followed. Development has conclusively ended with the game's removal from sale.
Evidence
Developer announced the game would be removed from the Steam store after July 21, 2023, citing the end of development and closing the book on the project.
No purchase options are available on the store page, confirming the game has been delisted.
Media
Details
Developer
Publisher
Turbo Pelvis 3000 inc.
Achievements
33
Platform
Windows
Controller
full support
Steam Deck
Verified
Players
Single-player
About this game
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.
Are these done yet?
Last evaluated Jul 22, 2026
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