A spaceship building and universe-exploration game. Collect resources, expand and grow your fleet, and conquer your personal galaxy. Stellar ambience by Peaks.
Recent Reviews:
Very Positive (12) - 100% of the 12 user reviews in the last 30 days are positive.
All Reviews:
Very Positive (2,063) - 92% of the 2,063 user reviews for this game are positive.
Release Date:
Feb 19, 2015

Sign in to add this item to your wishlist, follow it, or mark it as not interested

Buy Reassembly

Buy Reassembly Soundtrack Edition

Buy Reassembly Deluxe Edition

Includes 2 items: Reassembly, Reassembly Fields Expansion


Buy Reassembly Complete Edition

Includes 3 items: Reassembly, Reassembly Soundtrack, Reassembly Fields Expansion


Recent updates View all (41)

January 31

January 31st 2019 Update

General Updates
* Add galaxy configuration screen when creating a new game or regenerating the world. Allows players to change the size of the galaxy, number of agents, and, if the Fields Expansion is installed, the number of gravity wells and slow zons.
* Show which block is causing the "locked" status for imported ships.
* Fix particle effect related crash (std::bad_alloc)
* Big projectile physics optimization - can now have significantly more projectiles before the game slows down.
* Number of optimizations for AI and plant mechanics
* Fix a number of missing translation strings and update Chinese translation (thanks tanghao, Song Jiang, Uiharu, and other members of the Chinese community).
* Optimize rendering of the ship editor, upgrade, and fleet screens
* Fix bug where players can't get credits immediately after regenerating th world
* Allow modded map regions to load in a more order-independant way
* Add file browse option to make locating save files easier
* Don't pan the camera when using the arrow keys in the ship name widget in the ship editor
* Optimize R tractor beam code and fix bug where R packets were sometimes not picked up when a bunch of ships are nearby.

Fields Expansion
* Push stations out of neutron stars if they get stuck in there
* Afterburner now allows the ship to turn more tightly when activated
* Disable stacking of afterburner with regular thrusters
* Fix typo in audio config file.
* Reduce the amount of stuff that spawns inside gravity wells somewhat.

Modding Updates
* new FIN feature and finForce parameter allows blocks to use more steering behavior type movement. Try it on missiles. Negative finForce acts as drag. Also works with ACTIVATE.
* fix crash when using the "reload" command to load mod data
14 comments Read more

January 22

Fields Expansion and January 22 Update

Get it here!

There are also a number of updates in the base game:

* Add free for all tournaments!
* Add soft tournament border
* fix excessive spread fire
* add option to pause between rounds instead of advancing automatically
* fix bug where saves slots at end would not appear in tournament screen

* fix long standing memory corruption issue related to strings
* fix bug where blocks with ports very close together could corrupt ship state
* fix some fleet color import issues
* fix a number of subtle threading crashes
* update SDL image/ttf and associated dlls
* unlocked blocks are added to the palette in order
* fix some crashes related to resources

* recoil control for cannons
* fix crash when prettyingprinting long fragment lists
* allow exporting a whole fleet of selected ships using the "export" command
* fragment optimizations
* new console commands "health" and "credits"
* fix bug where ships would mysteriously not attack each other in sandbox
* add aihint_range and aihint_muzzleVel to tell the ai how to aim complex weapons
* add "extends=BLOCKID" field to copy attributes from another block
* fix a number of issues with custom shapes
12 comments Read more


“My love of video games partly comes down to not owning enough Lego when I was younger to build spaceships to fight each other. Thankfully, digital Lego is plentiful and cheap. Reassembly has lots and lots, letting you use a variety of pre-constructed spaceship sections to build ever-increasing sizes of ship and destroy others....”
Rock, Paper, Shotgun

“...the real magic of the game is the ability to design, tweak, and reconfigure just like I had fantasized when I was a child surrounded by a moat of spilled plastic blocks.”
Big Sushi

“Kaleidoscopic visuals impart a unique look that has a truly alien feel- simple, clean, and rather pretty.”
Bit Pulse

About This Game

And through the Kickstarter gauntlet we have arrived. Yes, we have a procedurally-generated universe to explore. Yes, we have eye-gogglingly gorgeous vector-based gameplay coupled with particle effects so effortlessly effervescent that you won't have time to wonder if "effortlessly effervescent" means anything coherent. And yes, we have noises and musical moods that take a warm soapy sponge to your brain and massage it into cerebral splendor.


You're too busy crafting the perfect vessel, a spaceship pristine and precise and, perhaps, powerful, agile, and envy-inducing. Your shapes and colors will induce both fear and wonder into the electronic hearts of whatever insectoid, angley, squarish, plantlike race of alien ships that you come across in your digital safari.

And then you grow. And it changes everything. Now your left wing must become your right wing in a lopsided arrangement of fancy new weaponry and mega-buffed shields. You recall thinking when you last were destroyed (and you will be destroyed), that you really needed to buff up that armor. Right? Definitely.

And then you grow again. And again. And now you're a battleship capable of producing your own fleet, and each member of your fleet can spawn it's own fleet, and you need it. Your enemies are constantly changing shapes, sizes, and intensities as ships created and honed through the experience of a thousand battles find their way from their creator's computer to yours, leaping into your universe with all the mercy in the world of NONE AT ALL.

It's time to visit the electronic tide pool.


  • Gorgeous Vector-Based Graphics
  • Procedurally Generated Universes
  • Ridiculously User-Friendly Spaceship Designer
  • A Beautiful and Haunting Soundtrack by Peter Brown (Peaks)
  • More Particle Effects Than You can Shake a Stick At
  • Very Smart and Reactive AI
  • Physics that Give Weight to Your Creations
  • Asynchronous Multiplayer: Universes Populated by Fellow Players

System Requirements

Mac OS X
SteamOS + Linux
    • OS: Windows XP
    • Processor: 2 GHz Dual Core
    • Memory: 2 GB RAM
    • Graphics: OpenGL 2.1
    • Storage: 150 MB available space
    • OS: Windows 7
    • Processor: 2.3 GHz+, Quad Core
    • Memory: 2 GB RAM
    • Graphics: OpenGL 3.3+, 256MB+
    • Storage: 250 MB available space
    • OS: 10.7
    • Processor: 2 GHz Dual Core
    • Memory: 2 GB RAM
    • Graphics: OpenGL 2.1
    • Storage: 150 MB available space
    • OS: 10.7
    • Processor: 2.3 GHz+, Quad Core
    • Memory: 2 GB RAM
    • Graphics: OpenGL 3.3+, 256MB+
    • Storage: 250 MB available space
    • Processor: 2 GHz Dual Core
    • Memory: 2 GB RAM
    • Graphics: OpenGL 2.1
    • Storage: 150 MB available space
    • Processor: 2.3 GHz+, Quad Core
    • Memory: 2 GB RAM
    • Graphics: OpenGL 3.3+, 256MB+
    • Storage: 250 MB available space

What Curators Say

66 Curators have reviewed this product. Click here to see them.

Customer reviews

Review Type

Purchase Type


Date Range
To view reviews within a date range, please click and drag a selection on a graph above or click on a specific bar.

Show graph

Display As:
Review Beta NEW!
When enabled, will sort reviews by new Helpfulness score. Read more about it in the blog post.
Show graph
Hide graph
Review Helpfulness Beta Enabled
There are no more reviews that match the filters set above
Adjust the filters above to see other reviews
Loading reviews...