Used parts have free shipping in PC Bay, but they usually take several days or even a couple of weeks to arrive. 3 to 5 working days, a slow but cheap delivery which costs only 10 dollars.Same day delivery, which spawns the parts immediately on the loading bay, but costs 100 dollars.Next-day delivery, the standard option which costs 30 dollars.For new parts, the player can choose between different shipping services: In order to acquire parts, the player must buy them from the fictional online stores, which sell new parts in Bits & PCs or used parts in PC Bay. When a certain amount of experience is reached, the player levels up, unlocking newer and more advanced parts, alongside unlocking some new tasks. After each completed task, the player earns a certain amount of experience points. The player has responsibility of a workshop named Tim's Red Hot Repair where he/she must complete tasks that involve such as modifying pre-built computers, removing viruses, adding new parts, diagnosing or building a brand new computer to earn in-game cash, which can be spent on purchasing new or used parts.
PC Building Simulator has three modes: Career, Free Build, and How to Build a PC which is a tutorial, with each mode having different play styles.