The update is automatic for most users. If you haven’t received it yet:
Note: You must own the IT Expansion DLC to access this content. The base game will update to v1.15.3, but the IT-specific fixes only apply if the DLC is installed.
GOG users can download the standalone offline installer.
If you are having trouble getting the PC Building Simulator IT Expansion update v1.15.3 updated on your system, try these proven fixes.
Downloading PC Building Simulator with the v1.15.3 expansion update is less about playing a game and more about engaging in a hobby without the financial risk. It is a title that respects the complexity of PC building while making it approachable.
Whether you are a veteran IT professional who wants to relax by building virtual dream machines, or a first-time builder looking to learn the difference between an M.2 drive and a SATA SSD before spending real money, this updated version is the pinnacle of the series. The shop is open, the parts have arrived, and the thermal paste is waiting.
The v1.15.3 update for PC Building Simulator focused primarily on compatibility and hardware support, notably adding Steam Deck support and PS5 controller compatibility. This version is a refinement of the larger v1.15 "Double Drop" update, which introduced significant new parts and features to the base game and its IT Expansion. Update Highlights: v1.15.3 The update is automatic for most users
The specific v1.15.3 patch served as a critical maintenance update with the following additions:
Steam Deck Integration: Added support for the on-screen keyboard when playing on Steam Deck.
Controller Support: Implemented native support for PS5 controllers.
Bug Fixes: Resolved an issue that previously prevented the Steam Workshop wallpaper integration from functioning correctly. Core Content from the v1.15 Cycle
Since v1.15.3 builds upon the v1.15 foundation, players also gain access to:
New Hardware: Over 40+ new parts from partners including Thermaltake, Arctic, Corsair, ASRock, and MSI. Note: You must own the IT Expansion DLC
IT Expansion Refinements: Updates to the IT Expansion include UI adjustments for ultrawide resolutions (up to 5120x1440) and various fixes for off-site job textures and lighting.
Free Content: A new free workshop was added to the base game during this update cycle. The IT Expansion Overview
The IT Expansion is a major career campaign (released for free to base game owners) where you act as an IT technician for the Irch Corporation.
New Gameplay: Focuses on managing support tickets, fixing printers, and performing on-site repairs.
Exclusive Tools: Introduces a tablet interface instead of a smartphone for managing the shop and emails while on the move.
Workshops: Features three unique workshops specifically for the IT career path. Download & Technical Information If you are having trouble getting the PC
The update is typically delivered automatically through Steam or the Epic Games Store.
Patch Size: While the actual download for small patches like v1.15.3 may be light (often measured in KB or MB), the "patching" process may involve the system processing several gigabytes of existing data.
System Requirements: The game requires a minimum of 4 GB RAM and approximately 30 GB of storage space. PC Building Simulator Update v1.15.3 - Steam Community
It sounds like you're looking for a guide to download and update PC Building Simulator with the IT Expansion DLC to version 1.15.3.
Here’s a step-by-step guide depending on where you own the game.
For enthusiasts who dream of building a rig with an unlimited budget—or for those who simply enjoy the satisfying click of a RAM stick snapping into place without the fear of bending a pin—PC Building Simulator remains the gold standard. If you haven’t yet jumped in, or if your copy has been gathering digital dust in your library, the recent v1.15.3 expansion update offers the definitive excuse to return to the workshop.
While the base game has long been celebrated for its educational value and addictive "fix-it" loop, the updates leading up to and including version 1.15.3 have significantly polished the experience, transforming it from a novelty into a deep management sim.
Solution: Go to your launcher’s DLC management page. Uncheck the IT Expansion DLC, launch the base game, exit, then re-check the DLC. This forces the license validation script to run again. Then re-download any small authorization files.