Buy for the problem your ship has now
Winning a wave earns another chance to improve your ship, but buying a kit you cannot use will not fix the next battle. The Hull Rupture post battle shop now offers themed loot boxes containing module or turret kits, rather than the old selection of individual kits. Choose the theme that addresses your immediate shortage, then plan around the contents you actually receive.
This is the redesigned demo shop introduced on September 14, 2026. Older playthroughs showing direct purchases belong to an earlier economy; the September 25 update subsequently adjusted kit randomization.
Decide between production and defense
Start by inspecting your ship before spending. A turret purchase makes sense when the economy can support construction but aliens are getting too far along the hull. A module box is more useful when production is preventing you from building the defenses or expansions you need.
| Your current problem | Purchase to consider | Check before buying |
|---|---|---|
| The next wave needs stronger defenses | A turret-themed box | Suitable firing positions and construction resources |
| Production is limiting expansion or weapons | A module-themed box | Space, workforce, and the resources supporting that production |
| You have a specific build in mind | The relevant theme | Whether the run can function while waiting for random contents |
The theme narrows the kind of kits offered; it does not guarantee the exact module you want. The September update also allows modules to arrive with modifiers already installed. Read what you receive before committing it to a permanent production location.
Buying a kit and having a working module are separate steps. Hull Construction determines available space, and a module slot becomes buildable when a completed module is next to it. Leave room for the equipment your purchases are meant to support.
Use the Chamber as a second supply of kits
Despot's Chamber can produce random module kits for free. More humans assigned there increase kit production, although the developers describe the process as slow.
That gives you another way to obtain equipment without treating every missing module as a shop emergency. It also creates a use for unwanted results: sell spare Chamber-produced kits in the post-battle shop and put the proceeds toward another box.
Consider both effects of the assignment. Workers in the Chamber help generate kits, but those humans also belong to the same workforce needed elsewhere on the ship. Increase the assignment when the rest of the economy can support it, rather than assuming free kits remove every production constraint.
Understand the updated randomness and refunds
In demo patch v0.10.12, the developers made module kits not yet encountered during the current run more likely to appear, while recently received kits became less likely. This affects both the shop and Despot's Chamber.
That improves variety without turning a box into an exact-order system. Keep a workable alternative when a desired kit has not appeared; do not spend as though the next purchase must contain it.
There is also an important difference between selling a spare kit and demolishing a completed structure. The September update says demolishing modules or turrets returns construction resources, but does not return the kit. Build an uncertain purchase only when you are prepared to use up that kit.
The official Hull Rupture developer announcements document the shop redesign and later randomization changes.
FAQ
Can I directly choose every module kit in the updated shop?
The redesigned demo sells themed loot boxes. Their themes help guide your purchase, but their contents remain random.
Can a module arrive with a modifier?
Yes. The September demo update states that modules can drop with modifiers already installed.
What should I do with unwanted Chamber kits?
You can sell them in the post-battle shop and use the proceeds toward another box. Demolishing a built module is different and does not give its kit back.