Star Citizen 4.5.0 patch summary: what changed

Alpha 4.5.0 "Dawn of Engineering" (17 Dec 2025) is Star Citizen's biggest leap in multi-crew depth to date, centering on a sweeping Engineering Gameplay system and a first-ever experimental VR mode.

• Engineering & Ship Systems: Ships now have a live Engineering Terminal showing a 3D schematic of power, atmosphere, doors, and hull integrity. Components degrade during combat, fuses blow and must be physically replaced, and damaged parts can be repaired mid-flight with a repair tool. Power is a finite budget split between shields, weapons, thrusters, and life support, each with their own capacitor affecting performance.

• Fire, Atmosphere & Helmets: Fires can ignite from component damage and spread room to room, requiring extinguishers or atmosphere venting to control. Individual rooms can lose breathable air through hull breaches, and players must now wear a helmet anywhere atmosphere is absent — EVA, depressurized sections, and similar hazards.

• Ship & Weapon Balance: A new armor system gives each hull section its own damage-absorption values, with energy and ballistic weapons behaving differently against it. Snub fighters and interceptors received a full rebalance pass, racing ships got distinct flight tweaks, and large weapon sizes (S7/S8) saw significant damage and ammo reductions. Several FPS weapons including the Pulverizer and Prism Volt shotguns were also tuned down.

• New Items & Characters: Three new player hairstyles, physicalized helmets that exist as real objects in the world, and a range of new FPS weapon attachments from multiple manufacturers were added.

• Tech: The Vulkan renderer received performance and settings improvements benefiting lower-spec hardware. Experimental VR support — including a Theater Mode and dynamic headset switching — is available for the first time, though it is not intended for everyday play. Over 150 bugs were fixed, 39 sourced from the Issue Council.

This is a high-level summary; always consult the official patch notes for the full detail.