Steam

eXpanSIM

Also known as e, eXpanSIM, expansim

eXpanSIM is a universal vehicle simulator supporting VR. It offers realistic physics simulation of cars, trucks, forklifts, excavators, and military vehicles. Improve your (eco-)driving skills in a city, on a track, or off the road.

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Last update

15 May 2026

Original sources

Latest update

Patch notesPublished 16 Jun 2025

#33Patch update #33: Upgraded rendering

Graphics Improved global illumination Improved sky and clouds Improved shadows Improved reflections Added volumetric fog light scattering Upgraded water (waves, caustics, underwater volume) Performance Updated graphics…

20 changesGameplayPerformance

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Latest updates

Update history

Browse past updates and patch notes for this game.

20updates

April 2025
Weather System Split months into four seasons (Spring, Summer, Autumn, Winter) Improved rainy weather with wet reflective surfaces, puddles and raindrop ripple animations Added lightning storm Added Winter snow cover on…#3222 changesFixGameplayPatch notes18 Apr 2025
November 2024
AI Traffic Reduced vehicle blocking on intersections Fixed incorrect road intersection priorities Gentler vehicle acceleration Improved pedestrian paths Fixed incorrect turn indicator Fixed vehicle skin variants Vehicle…#3131 changesFixGameplayStore15 Nov 2024
August 2024
AI Traffic Increased traffic density around the player Increased the maximum number of AI vehicles and pedestrians Increased AI vehicle controller speed and improved steering trajectory Improved pedestrian behaviour and…#3038 changesFixGameplayPatch notes09 Aug 2024
October 2023
Bugfixes Fixed the license error showing for some Steam users (the error may still show for users with aggressive anti-viruses like Avast) Vehicles Added a new agricultural tractor inspired by Case IH Maxxum 135 Added a…#2922 changesFixGameplayPatch notes26 Oct 2023
August 2023
Graphics Added day-night cycle and weather effects Added volumetric clouds and fog Added windshield raindrops Optimised camera rendering Added experimental support for DirectX 12 and Vulkan Vehicle models Added new vint…#2828 changesGameplayMapsPatch notes09 Aug 2023
September 2022
Vehicle Physics Upgraded rubber tyre simulation Improved tyre grip and skid Improved anti-roll bar simulation Reorganised steering geometry Added caster and kingpin angles Added variable steering ratio Improved differen…#2733 changesFixGameplayPatch notes27 Sept 2022
March 2022
What's New Added traffic offence detection Added country-specific traffic rules and road signs Added many performance optimisations Expanded the AI traffic system Artificial Intelligence Improved AI vehicle goal selecti…#2642 changesFixGameplayPatch notes08 Mar 2022
September 2021
We gave away over 2000 free Steam keys to our most engaged community members during the last two years of development. Unfortunately, we reached the maximum number of beta keys for a game in a pre-released stage, and we…4 changesCompatibilityGameplayStore10 Sept 2021
What's New Added car trailers Added new truck trailers Added trailer selection to the vehicle card Performance Reduced UI overhead Optimised the Lakeside Hill map Fixed HUD unnecessary memory allocation Fixed log stack…#2527 changesFixGameplayPatch notes10 Sept 2021
June 2021
Unity's HDRP (High Definition Render Pipeline) is a new set of tools that unlock the power of modern graphic cards and allow achieving better visuals. We invested a lot of work to convert all graphical assets to the new…#2422 changesFixWorkshopPatch notes15 Jun 2021
April 2021
What's New Added the surround rendering mode Added ESC (Electronic Stability Control) Added AI vehicles to the Windridge City map Added a new semi-trailer truck Vehicle Physics Improved ABS (Anti-lock Braking System) Im…#2330 changesFixGameplayPatch notes12 Apr 2021

Older updates

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