A Sci-Fi Building Simulation from Double Fine Productions
Spacebase DF-9 Buy Now on Steam

Spacebase DF-9 1.06 released

  • Mods can now be loaded via ZIP files from the Mods\ subdirectory of the game’s install directory.  Each ZIP is loaded as a simple virtual file system which can contain directories that mirror the main game scripts and override their behavior.  A file called “init.lua” in the top level of each ZIP’s directory structure will run when the mod is loaded, allowing you to perform any needed initialization.  See the MyDemoObject.zip there for a simple example mod, which adds a new buildable object with its own artwork.
  • Arrow keys now pan view same as WASD keys.
  • “show_hints” flag added to bootconfig.cfg, set it false to disable the Hint system entirely.
  • Fixed: Unsuited citizens in a vacuum don’t enter “sucked into space” immediately.
  • Fixed: Turrets don’t spawn in derelicts and docking ships as intended.
  • Fixed: Various UI issues when resizing game window.
  • Fixed: Held weapons don’t appear correctly on spacesuited characters.
  • Fixed: Research datacubes don’t display properly.
  • Fixed: Ships dock onto pending construction.
  • Fixed: Base Seed Pod can start encased in an asteroid.
  • Fixed: Turrets don’t display properly when scanning for threats.
  • Fixed: Raiders kill people imprisoned in brigs.
  • Fixed: Ship engines don’t sort correctly with nearby walls.

Spacebase DF-9 1.05 released

  • Fixed: Citizens no longer place stuff on shelves, always have “stuff” need unsatisfied.
  • Fixed: Dropped ore disappears.
  • Fixed: Various rare crashes.

Spacebase DF-9 1.04 released

  • Completely rebalanced the galaxy map.  Where you choose to build a new base matters a lot more now.
  • Raiders will no longer attack and destroy Airlock Suit Lockers - leads to too many obnoxious situations.
  • Tuned hint message priority and visibility durations.
  • Each entry in EnvObjectData.lua can now specify a sprite sheet, making it possible to create custom objects with new sprite sheets.
  • Fixed: Visible doors in unexplored derelicts always appear as broken airlock doors.
  • Fixed: Goals and base stats aren’t wiped when starting a new game.
  • Fixed: Incapacitated hostiles prevent room claiming.
  • Fixed: Alerts display for hidden non-citizen illnesses, allowing you to select them in unknown territory.
  • Fixed: Player can drag camera while dragging new construction in Construct mode.


  • Character limit on character/room/object renaming.
  • Fixed: After ~45 minutes of play, events stop occuring for long periods of time.
  • Fixed: Crash on insufficient matter.
  • Fixed: Tutorial base shifts position on galaxy map.
  • Fixed: Construct menu items highlight improperly.
  • Fixed: Turrets can’t fire through open doors.

Spacebase DF-9 1.02 released

(1.01 was released shortly after 1.0 and contained a few crash fixes.)

  • Hide back walls in construct mode when cutaway view is enabled.
  • Clearer visuals for Tear Down vs Vaporize wall tile orders.
  • If user tries to save during an event, save happens once event has run.  Prevents various event state bugs.
  • Balance: Difficulty ramps up over slower time, final siege takes longer to happen.
  • Fixed: Security sometimes doesn’t respond to Beacon in correct numbers.
  • Fixed: Tutorial conditions aren’t completed when keyboard shortcuts are used.
  • Fixed: Final siege goal triggers prematurely.
  • Fixed: “Ghost helmets” appear on citizens during certain animations.
  • Fixed: Turrets don’t attack hostiles in some cases.
  • Fixed: Some AI issues relating to survival situations.
  • Fixed: WASD keys function in full-screen menus.
  • Fixed: Pathfinding crash.
  • Fixed: Can’t place weight benches.
  • Fixed: Crash building or hovering some objects.
  • Fixed: Time doesn’t pause when starting a new game.
  • Fixed: Tutorial doesn’t load correctly when selecting Outpost EZ-101 in Galaxy Map with resized window.

Spacebase DF-9 1.0 has been released!

In addition to heaps of bug fixes and polish items, this release adds a Tutorial Mode for newcomers and a Goals screen that gives players objectives to work toward.  These and many smaller improvements knit the game together into a more complete experience for 1.0.

The game’s Lua source code is now available in the game’s install directory on all platforms.  Usually this will be in your Steam directory, under SteamApps\common\SpacebaseDF9\Data\Scripts.  If you own the game you can modify these files and distribute your modifications to other users as you like.  A large portion of Spacebase is written in Lua, so there are relatively few limits on what you can do with this.

The 1.0 release also sees the game’s price drop to the science-fictionally appropriate price of $20.01 US.  In addition we’re introducing a new bundle of our two community-voted Amnesia Fortnight turned Indie Funded projects, Spacebase and Hack ‘n’ Slash, for $24.99.  As a bonus for the customers who have supported us thus far, anyone who already owns the game gets a free copy of Hack 'n’ Slash, and anyone who owns Hack 'n’ Slash gets a free copy of Spacebase.

As we’ve done with all our alpha releases, we’ll roll out minor updates in the next few days or weeks to fix any issues that come up.

Thank you so much for your support and patience for the past year.  We’ve learned a lot and are proud of what we managed to accomplish, and it’s all thanks to your support.  And now, we must return to our home planet… hope to see you on worlds beyond!

Spacebase DF-9 1.0 released

Major Features / Enhancements:

  • New Tutorial Mode teaches basic game concepts.  Access Tutorial Mode by selecting “Learn to Play” from the pause menu or by picking Tutorial Outpost EZ-101 on the Galaxy Map.
  • New Goals Screen tracks player progress towards persistent goals, such as “50 citizens on base”, “Researched all technologies”, etc.
  • Later in the game hostile forces now show up in greater numbers and combinations, culminating in a visit from the Pirate Megafleet once your base becomes successful enough.  Survive the onslaught to complete the game’s hardest goal.

Minor Improvements / Bug Fixes:

  • All “Famous Citizen” tier customer names added to Credits and random citizen name pool.
  • Disaster Menu can be enabled with a secret key combination and used to unleash disasters on your base.
  • Many new sound effects, including crowd noises in rooms based on their current population.
  • Many small UI polish items.  Look and feel of UI in the Citizen/Zone/Object Inspectors is now more consistent.
  • Brig and Residence assignment UI improvements: X button to clear an assignment, clicking the assignment button a second time cancels out of pick mode.
  • “Execute” button in citizen action tab causes security to immediately target this citizen.  Use responsibly!
  • Asteroids are treated like walls for the purposes of object placement.
  • Citizens who are sleeping in beds that get destroyed wake up and become annoyed.
  • Clicking an object in the Contents section of a container’s Stats Tab selects it.
  • Improved mouse wheel, middle mouse, and keyboard view zoom behaviors.
  • Vaporizing a wall with an object hanging on it vaporizes the object and refunds its matter.
  • Dropped research datacubes will preserve their “claimed for research” state.  Scientists will try to drop them off somewhere in the base even if there isn’t a Research Lab.
  • Citizens flee when someone is having a tantrum nearby.
  • Emergency Alarms in rooms with no/disabled alarm panels turn off.
  • Price of Dark Matter Reactor increased from 450 to 600.
  • Tooltip for a research datacube shows the blueprint it contains.
  • New Spaceface logs: cuffed, escaped from brig, needs shelving, security starts exploring a beacon, security finishes exploring a beacon.
  • Duty skill increases when morale is high, up to a 25% bonus per duty task.
  • Security citizens take their helmets off if they get into a brawl with another citizen.
  • “Flavor” text and descriptions for all objects that were lacking them.
  • Start new bases with time paused.
  • Balance: Many small changes to citizen morale and duty efficiency.
  • Balance: Turret damage output increased.
  • Balance: Buildable objects are more resilient.
  • Fixed: Dozens of crashes and AI issues.
  • Fixed: Scrollable views such as the Job Roster don’t display correctly in non-16:9 aspect ratios.
  • Fixed: Decals remain after a tile is vaporized.
  • Fixed: On loading a savegame, citizens who were sleeping are awake and restart their sleep cycle.
  • Fixed: White helmets display on citizens when playing certain animations.
  • Fixed: Citizens exercise, play games, and hang out in functioning airlocks.
  • Fixed: Lower right UI buttons shift to left even if there are not enough alerts to warrant this.
  • Fixed: Job Roster columns highlight on hover incorrectly.
  • Fixed: Non-citizens in unclaimed derelicts do not react to dangerous situations.
  • Fixed: Botanists do not repair damaged or destroyed hydroponics cultures.
  • Fixed: Citizen talk and thought bubbles do not draw correctly.
  • Fixed: Exiting Job Roster / Research Assignment screens minimizes the Hint pane.
  • Fixed: Killbots bleed.
  • Fixed: Killbots get sick.
  • Fixed: Player can hover and select some objects or rooms within hidden areas.
  • Fixed: Security duty citizens flee in rooms with active alarms while doing certain tasks.
  • Fixed: Removed debug power visualization mode.
  • Fixed: Security Beacon location isn’t preserved across save+load.
  • Fixed: Flipped text on the Alarm Panel.
  • Fixed: Turrets in space can’t be deactivated.
  • Fixed: Breach ships don’t play VFX when taking damage or exploding.
  • Fixed: Text overlaps UI in several miscellaneous places.
  • Fixed: Matter counts up/down from previous session’s total when starting a new base.

The Road to 1.0

Big news everyone, Spacebase DF-9 1.0 will be released next month! It’s been a pleasure sharing this experience with those of you who picked the game up during Early Access and provided the feedback that helped shape it into what it has become.

To those who were waiting until the final release to start building a base of your own, we put together this timeline-infographic to show how far we come since Early Access release and what new stuff you can expect:


As for what will be added between now and the 1.0 build, new features will be aimed at providing the complete experience you’d expect of a non-Early Access game: a Tutorial mode to smooth out the early game a bit and help new players learn the basics, and a Goal system that lets you work towards concrete objectives. That as well as over a month’s worth of pure bug-fixing work and final polish.

We’re also pleased to announce we’ll be releasing the game’s full Lua source code a short time after 1.0, which will allow the community to create potentially far-ranging mods that add content, new features, and change some fundamental game behaviors. We’ll of course be sticking around a bit for bug fixing and support, but any new content for the game will now be in your hands. We’re eager to see what people do with this game!

To those who purchased the game early on and donated extra for the “Famous Citizen”, “Stargazer”, and “Extradimensional Entity” tiers: all customer names will be in-game for 1.0, and before long we’ll unveil the poster and art print we’ll be sending out to those customers. Spoiler alert: THEY’RE LOOKING BEAUTIFUL!!

We’re extremely grateful for the support and feedback you’ve given us so far. Thank you for making all this possible. Now, back to work… we’ve got hundreds of bugs to fix before 1.0!

Spacebase DF-9 Alpha 6e released

  • Gourmand citizens are angered less by eating replicator food.
  • Fixed: Various crashes.

Spacebase DF-9 Alpha 6d released

  • Scientist job failure anger reduced drastically.
  • Room tool drag sizing guide now includes Reactor.
  • Fixed: Various crashes.
  • Fixed: Brig walls are purple on OSX.

Spacebase DF-9 Alpha 6c released

  • Starting base colonists get along better now and enjoy Builder duty so they’re less likely to get angry or sad during the early base construction phase.
  • Fixed: A few crash fixes.
  • Fixed: Minor AI issues.
  • Fixed: Can’t unassign people from Brigs.
  • Fixed: Corpses don’t get cleaned up properly.
  • Fixed: Parasites can be assigned to Brigs. We’d like to resolve this in a cooler way in the future.
  • Fixed: UI bugs in Citizen Action Tab.
Spacebase website v1.00
Frontface Marketing System Processing
Frontface Secretion Complete
Website ready