openOMSI 0.3.0

openOMSI 0.3.0

Early release, expect bugs. openOMSI needs an original OMSI 2 installation to run; it contains no game content.

Changes since 0.2.60:

0.3.0 - 2026-10-14

A stabilization release: the slowdowns and breakages that came with the updates since 0.2.20,
traced back to the changes that caused them and fixed.

Performance

• Big maps with a lot of AI traffic run smoothly again: the AI vehicles' scripts run once
  a frame, as before 0.2.28, instead of in every 20 ms traffic step. At low frame rates they
  ran up to four times a frame, which made the frame slower still; articulated buses paid it
  for every section. Fewer "Simulation" stutters and no more slide to a few frames a second
  (#2246, #2388, #2208, #2464, #2579).
• Passengers, pedestrians, the timetable and the weather move on once a frame again, not in
  every tick of the fixed step (since 0.2.39).
• With a wheel or joystick plugged in (Windows), the game no longer looks for controllers
  every 300 ms: it waits longer and longer while nothing changes, and looks again as soon as
  something is plugged in or out. No more regular small hitches.
• openOMSI starts again on older processors without POPCNT ("this app can't run on your PC",
  0xC000001D) (#2484).

Graphics

• Vanilla and Vanilla+ sky: no more clouds stretched into layers and streaks towards the
  horizon; past the edge of the cloud dome there are no clouds, as in OMSI 2.
• Ambient occlusion is as strong as before 0.2.46 again, and the sun's glare and the fog lamps
  no longer shine through roofs and bus ceilings; invisible covers still hide what is behind
  them (#2558, #2605, #2059).
• Enhanced: glossy lacquer is sharp and shiny again, while paint that reflects little stays
  satin (#2563, #2301).

Traffic, trains and maps

• AI traffic no longer stands still for good at big junctions and roundabouts
  (#2373, #2562, #2592, #2257):
  • cars drive into a junction unless they would stop inside the path of another car, instead of
    waiting at the edge of a big crossing whenever anyone stood inside it;
  • cars that wait for each other in a circle sort it out after a few seconds: the one that
    has waited longest goes (never through another vehicle, a red light or a person);
  • a car waiting at its give-way line no longer takes the right of way from the cars going
    round a roundabout or along a priority road;
  • a car waiting at a red light inside a junction no longer holds up the cross traffic
    that has green.
• AI trains and trams stay on their tracks: every car is laid along the track on its two
  bogies at the couplings its files declare, instead of being pushed behind the car ahead as
  a rigid block (since 0.2.24 and 0.2.28).
• Articulated AI buses' rear sections follow smoothly between frames.
• The ground under splines and spline attachments laid with [spline_terrain_align] is cut
  to the right one again: no more broken terrain beside or under roads (#2004).

Vehicles and passengers

• Start sounds and other triggered sounds are heard again: a sound started at zero volume
  takes the volume its curves give later (#2552).
• The in-game vehicle lists offer Original paint again, beside Random livery (#2598).
• The timetable sheet in the bus shows the timetable again (#2575).
• Passengers read the destination off what the bus's display shows again.
• Street lamps' shadows no longer switch between lamps at night after the mirrors are drawn
  (Enhanced) (#2498).
• Passengers: the original OMSI animations are the default again; the natural poses no
  longer raise a hand or put arms through the body, and people out of sight take fewer
  poses (#2588).

Launcher

• Phones: the Mods page has its own storage browser to install a folder or a .zip, .7z or
  .rar archive; "Add folder" and ZIP did nothing (#2513).
• The bus preview shows the chosen paint in the classic Drive page too (#2585).
• Switching the update channel while the launcher is still looking for an update no longer
  leaves (or installs) the previous channel's result (#2623).
• iPhone and iPad: a first start welcomes the player, shows how to copy OMSI 2 onto the
  device, finds the copy by itself and says to turn the phone and drive; the welcome page
  shows the openOMSI logo (#2500).
• If the launcher crashes, its log now says where, so a report can be traced (#2574).
• When the graphics driver resets the card and the game restarts with lower graphics, the
  game now says so instead of quietly looking worse.

Project

• Releases are started by hand: a push to main no longer publishes a release by itself.
  Maintainers run the release from Actions, and promote a tested beta to stable as before
  (see docs/VERSIONING.md).
• Promotion runs from main only and reads the release policy from main (#2620).
• Governance and pull request rules, CODEOWNERS, a secret scan on every pull request and
  Dependabot for the launcher's own crates (#2622, #2633).

Downloads

Platform	Download
Windows x64	openOMSI-0.3.0-windows-x64.zip
Windows ARM64	openOMSI-0.3.0-windows-arm64.zip
macOS (Apple silicon)	openOMSI-0.3.0-macos-arm64.zip
macOS (Intel)	openOMSI-0.3.0-macos-x64.zip
Linux x64	openOMSI-0.3.0-linux-x64.zip
Linux ARM64	openOMSI-0.3.0-linux-arm64.zip
Android (arm64, 8.0+)	openOMSI-0.3.0-android-arm64.apk
Dedicated server, Linux	openOMSI-0.3.0-server-linux-x64.zip, openOMSI-0.3.0-server-linux-arm64.zip
Dedicated server, Windows	openOMSI-0.3.0-server-windows-x64.zip, openOMSI-0.3.0-server-windows-arm64.zip

The SHA-256 of every file is in SHA256SUMS: sha256sum -c SHA256SUMS --ignore-missing checks the ones downloaded.