Hull Rupture modules, turrets and defense
Hull Rupture's ship runs on interconnected modules that produce resources, humans and defense units, repair damage and boost efficiency. Aliens rip holes in the hull at times and places shown in advance, so you place turrets, traps, barricades and automated defenses to funnel them into kill zones, while waves grow stronger.
Humans as a resource
Crew operate the ship; those who cannot are described as becoming meatshields or biofuel. The game's tone is dark comedy, and human losses feed into its economy.
Modifiers
Modifiers are upgrades installed in individual modules. They come from Shops and narrative events, which draw from largely different pools. The demo patch v0.10.12 added the Rat Turret, which turns enemies it hits into rats.