neoOMSI: OMSI 2 rebuilt for modern systemsOMSI 2, rebuilt for modern systems. A modern 64-bit engine that runs your existing OMSI 2 maps, buses, and add-ons with smooth performance and no 4GB memory crashes.
Early development build.
Running OMSI 2 maps, buses, and scripts on a modern 64-bit architecture.
A 64-bit engine that handles high-resolution buses, large maps, and dense traffic without running out of RAM.
Directly loads your original OMSI 2 maps, vehicles, timetable schedules, and custom bus scripts.
Hardware-accelerated DirectX 12, Vulkan, and Metal rendering, with DLSS and FSR upscaling on Windows.
Realistic acoustics with Steam Audio, featuring directional 3D sound, engine occlusion, and cabin reverberation.
Install add-ons and repaints into a dedicated Mods folder so your original OMSI 2 files stay completely untouched.
Pick maps, routes, timetables, and bus liveries with real-time 3D previews before driving.
Play natively on modern 64-bit Windows, Mac, or Linux without legacy DirectX 9 wrappers.
Host multiplayer convoy sessions with dedicated lightweight server packages for Windows and Linux.
Every subsystem is tested against original OMSI 2 behavior so your vehicles and schedules behave as expected.
neoOMSI contains no copyrighted game content. It reads maps, vehicles, textures, and sounds directly from a licensed OMSI 2 installation and requires one to run.
Get the release zip from the download page and extract it into a separate folder (such as C:\Games\neoOMSI).
On first start, point the launcher to your OMSI 2 installation (typically C:\Program Files (x86)\Steam\steamapps\common\OMSI 2, or your custom Steam library path). Your original files are never modified.
Choose your map, timetable tour, bus livery, and controller profile in the launcher, then start driving.
Choose a vehicle. Inspect buses detected in your OMSI 2 installation, sorted by manufacturer, with real-time 3D model previews and livery variants.
Pick a line and a tour. Browse timetable tours, scheduled departures, line termini, and total run durations directly from map timetable data.
Set the time and weather. Select simulation date and time, apply custom weather profiles, synchronize live airport METAR conditions, or enable dynamic seasonal transitions.
Drive with the navigator. Monitor vehicle speed, speed limits, schedule punctuality, upcoming turn-by-turn maneuvers, and passenger stop requests on the in-game HUD.
More in the FAQ.
neoOMSI is a free 64-bit game engine that runs your existing OMSI 2 content on modern PCs. It reproduces original OMSI 2 gameplay, maps, vehicles, and timetable duties with smooth performance and without the 32-bit memory limit crashes of the original game.
Yes. neoOMSI is an independent game engine containing no proprietary maps, vehicles, meshes, textures, or sounds. On first launch, you select your OMSI 2 directory containing the maps and Vehicles folders. neoOMSI reads these files without altering them.
Yes. Standard OMSI 2 maps, buses, liveries, and vehicle scripts work directly without conversion. Custom add-on plugins (DLLs) and community repaints are supported. Subsystems are tested against the original game so your buses steer, shift, and load passengers as expected.
Yes. Original OMSI 2 is a 32-bit program limited to 2 GB (or 4 GB with community patches) of system memory, causing white textures and out-of-memory crashes on detailed maps. neoOMSI is a native 64-bit application that can use all your computer's RAM, with multithreaded loading so heavy buses and large maps load smoothly without crashing.
Both projects recreate OMSI 2 in Rust on a 64-bit engine, but they are developed by different teams. openOMSI is developed publicly under the AGPL license, exploring experimental features like Android mobile builds, physically based lighting, and alternative plugin formats. neoOMSI's source repository is currently private; it focuses on desktop simulation, verified behavior matching OMSI 2.2.032, Steam Audio 3D sound, and standalone dedicated server packages.
neoOMSI reads them from your OMSI 2 installation without modifying it.
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