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A modern, yet classic sci-fi roguelike,
spiritual successor to D**m, the Roguelike.

An epic battle of a lone marine against the forces of hell,
taking place on the moons of Jupiter.



Beta 0.4.0 released!

The next milestone in the Jupiter Hell Beta has been released! If you have Beta access, make sure to restart steam to force the update. If you have Beta access, but never received the Steam key, please get in touch with us.

We’re fully on schedule towards an end of May 2019 Early Access release! Many of you asked if there’s an option to get access to the beta before Early Access - we are working on it. In the meantime, do not forget to wishlist the game on steam!  

Progress between 0.3 and 0.4

We’ve managed to implement most of the things that we’ve planned for 0.4 and even more! The major highlights are:

  • three player classes, each with it’s own sets of traits!
  • special levels - 3 on Callisto, 3 on Europa, 2 in the Beyond!
  • in-game configuration
  • improved AI
  • better loot generation
  • utility slot and utility items
  • upgraded audio and more music! 

Road to Beta 0.5

Next major milestone is Beta 0.5.0, with minor versions scheduled every two weeks. 0.5.0 is tentatively scheduled for 1st of February, and hopefully will include all of the following: 

  • Io
  • player data and first challenges
  • more items, traits, master traits
  • improved level generation
  • Vulkan port finished
  • hopefully OSX version
  • ...and more!

Also new weapons, lots of new weapons…  


The Beta is here! If you’re a Beta backer or above you should by now have received an e-mail from us with the Beta 0.3.0 Steam Key - check your spam folder! If you can’t find it, please get in touch with us.

The game is still a deep work in progress, but has come a very long way from the early pre-Alpha stages, and has been gradually been improving with input and suggestions from the Inner Circle and Alpha communities. We’re thrilled to open this up now to many more fans and to get more feedback as Jupiter Hell moves into the next stage of development!

The beta is working on both Windows and Linux. OSX users, please be a little patient with us. From now on all updates to the game will be via Steam.

Jupiter Hell on Steam

The Steam page for Jupiter Hell is now live. It’s a big help for us if you wishlist it, so please do so even if you haven’t got access to the game yet!

Road to early access

Whilst the core of the game is in place there is still a lot more content to get loaded in. As we move towards open release on Early Access our development focus is now switching towards adding in layers and layers of content. That means more of the following:

  • Player classes with unique traits and abilities
  • Challenge modes, online leaderboards, player achievements, and extra difficulty levels
  • A longer game with two more major locations
  • Modular weapons and armor, more weapons, more items
  • More enemies, bosses and enemy variety
  • Plot details, quests, cutscenes
  • Music, sound, voice acting
  • UI configuration, mouse and controller support

And of course many other things secret or yet to be conceived! Community support is vital at this stage to let us know what works, what doesn’t, and feed in new ideas and suggestions. Make sure to try the beta out and give feedback via the community channels. Let’s plays and other recordings of the game are very welcome - please send us a link to anything you publish as we love to see them!

Jupiter Hell community

We’re thrilled to get to this stage, and we couldn’t do it without the great support of our fans. We always want more feedback, so if you have something to say please get in touch via:

Also, most of the team will be at GiC next week. Get in touch if you want to meet up.

Alpha 0.2.0 released

Development of Jupiter Hell continues apace! We have now released version Alpha 0.2.0. We've made many new advances in the last few versions, including:

  • Saving and loading (though obviously not after death)
  • Active traits - get new Headshot, Shredder and Overkill actions
  • New cover and dodge systems, with UI aids
  • Degrading armour on enemies, with graphical indicators
  • New level generators
  • Graphical enhancements and variety added to tilesets throughout the game
  • Loot crates and basic terminals
  • Destructible doors and scenery
  • Various tweaks and bug-killing, including some long-standing issues

Alpha backers can go download it now from the Alpha Forums. Feedback from playtesting is incredibly welcome!

Path to Beta

Our eyes are now set on the Beta release, which will hit several new development milestones and be open to many more backers. We are currently implementing:

  • Steam integration, including auto-updating
  • Vulkan port (hopefully OSX too)
  • More character traits and active commands
  • Weapon and armor variations (random traits) + more weapon types, with new gameplay interactions
  • More environmental interaction (locked/broken doors, many more options for terminals)
  • More enemies to play with
  • Dungeon branches for varied paths through the game
  • Secret things!

We’re tentatively aiming for early October for the first Beta release.

PAX West

Kornel Kisielewicz will be bringing Jupiter Hell to PAX West Seattle, 31-Aug to 3-Sep. If you’re attending please say hi!

To keep updated on a more regular basis remember to check out our Twitter feed, our regular development streams on Twitch, and come chat on the Discord channels!


Jupiter Hell is a roguelike set in a 90's flavored sci-fi universe. Set on the moons of Jupiter, the game pits a lone space marine against overwhelming demonic forces. Rip and tear zombies, demons and unmentionable monstrosities, using classic weaponry such as shotguns, chainguns, railguns and the trusty chainsaw. All to the shine of CRT monitors and the tune of heavy metal!

Dive deep into a true form of the 30 year old roguelike game genre that has resurged in popularity. Experience turn-based, grid-based permadeath and fully procedural levels, all in glorious 3D visuals. Get ready for the spiritual successor to DoomRL, the parody roguelike that years ago streamlined the traditional format and popularised a new wave of accessible roguelikes. Distilled, hardcore gameplay, fast-paced challenge and limitless death all await.

Welcome to Jupiter Hell.


True Roguelike!

  • Permadeath adds tension and significance to gameplay decisions
  • Turn-based and grid-based world to emphasise tactical decision making
  • Procedural environments mean you never know what’s lurking behind the next corner
  • Brutal but fair difficulty will have you constantly coming back for more

Fluid Gameplay

  • Dynamic turn-based action with adaptive animation lets you play at your own pace
  • Intuitive UI for clear and fast decision-making
  • Streamlined gameplay centres on the action instead of micromanagement
  • Action-centric game flow with repeated peaks of blood-stained joy

Smart Procedural Generation

  • Sadistic algorithms create unending challenges
  • Randomised missions intertwine with adaptive plot arcs for continuous variety
  • Generated events and environmental interactions keep you constantly engaged
  • Built upon decades of expertise in producing truly engaging procedural content

Limitless Challenge

  • Highly varied enemies require different strategies to beat, especially in combination
  • Unique enemy behaviours and skills
  • Legendary boss battles that will test your worth as a player
  • Advanced difficulty modes and special challenges for the most masochistic players