Since the September 2026 rebuild, the post-battle shop sells themed loot boxes rather than individual kits. The categories include Defense, Humans and Rare, and each box contains multiple recipes from the same category — which is a more cost-effective way to expand than buying kits one by one, and cuts the number of decisions you have to make after every battle. Modules can also arrive with modifiers already installed.
The Hull Rupture post battle shop guide: boxes and rerolls
Before the rebuild the shop sold individual module and turret kits. From the September 14 demo update it sells themed boxes instead, and the developers describe the change as a cost-effective way to expand plus a reduction in the number of post-battle decisions. A Defense box is your answer when aliens are reaching the Airlock; a Humans box is your answer when the crew split is the problem.
What a box does not promise
A box does not promise a specific item. Patch v0.10.12, on September 25, changed how randomization works in the shop and in the Despot's Chamber so that you are much more likely to find a module kit you have not seen yet during the current run, and less likely to receive one that dropped recently.
That is an odds change, not a guarantee. The developers also plan to keep kit containers central to the balance rather than moving away from them, so this is the shop you will be buying from for the rest of the run.
Reroll, selling kits and free kits
Three separate mechanics share this screen:
- Reroll. The REROLL control has its own displayed price, separate from the prices under the boxes. The September changes were meant to reduce the frustration with reroll fishing.
- Selling kits. Kits are a currency you can convert: sell an unwanted kit in the post-battle shop and put the money toward another box.
- Free kits. The Despot's Chamber produces free random module kits — slowly, and faster the more humans are staffed in it. That staffing is another claim on your human workforce.
Buy for the constraint you actually have
The shop rewards diagnosing before spending. If aliens are reaching the Airlock, take a Defense box; if production is stalling, take a module box. If you are not sure which one is binding, read the current per-minute rates in Info Mode first — the production chain guide covers what those numbers do and do not tell you.
Demolishing returns resources, not the kit
One distinction catches people out: demolishing a built module or turret returns all construction resources but does not return the kit. If you were counting on salvaging a bad placement back into the shop, that is not what happens.
What the full game adds
The full release plans more modules that produce the same resource in different ways, for example a module with a switch that lets you choose which Uncommon resource it produces. In other words, the box you open is the start of a decision rather than the end of one.