: Unreal Engine 4, providing significantly improved graphics and physics compared to previous iterations.
The game requires a 64-bit operating system and standard modern hardware: : Windows 7/8/10 (64-Bit). CPU : Intel Core i3 (3.3 GHz) or AMD Phenom II X4 (3.2 GHz). RAM : 6 GB. Bus Simulator 18 (CODEX) (Update 15)
Improved performance of AI-controlled NPC buses, particularly noticeable during in-game "national holiday" events. : Unreal Engine 4, providing significantly improved graphics
While Update 15 was a major milestone, subsequent hotfixes (such as the August 2020 update) further addressed specific issues with the , including pedestrian collision bugs and texture fixes for the CapaCity buses. : Unreal Engine 4