OMSI 2: The Omnibus Simulator: Complete Guide

How to get started in OMSI 2: starting a bus from cold, driving to a timetable, setting destination displays, selling tickets, the Spandau map and its chronology, performance tweaks, and which add-ons and tools are worth it in 2026.

Researched September 2026 — current as of the Steam Edition with September 2026 add-on updates (Thüringer Wald update, Bus Company Simulator going free on October 1, 2026, ADL Enviro500 announced for Q4 2026). Live games change; check the linked sources if something differs.

What's New Around OMSI 2 (2026)

OMSI 2 itself is mature, but its add-on ecosystem is very active:

Quick Start

1. Start somewhere quiet. Learn the controls on a small practice map if your install has one (many players use Grundorf), or on Spandau early in the morning or late in the evening when traffic is light.
2. Learn the cold-start sequence once. Buses can be spawned switched off in the depot; work through the start-up steps below until they're second nature, then everything else gets easier.
3. Learn to drive with the mouse on switches. Almost every cockpit switch is clickable; the keyboard shortcuts come later.
4. Set a line and destination with the bus's destination/IBIS unit so passengers know which bus you are.
5. Stop at every stop that has passengers and open the correct doors.
6. Drive smoothly. Passengers (and your score) hate harsh braking and hard cornering.
7. Use the stop brake at stops so the bus can't roll with doors open.
8. Keep an eye on the timetable. Arriving early is as bad as late; wait at stops if you're ahead.
9. Don't max out AI traffic density on a weak PC; OMSI 2 is very CPU-bound.
10. Check each add-on's manual. Every bus (especially third-party ones) has its own switches and quirks.

Starting a Bus From Cold (General Sequence)

Exact switches differ per bus, but most follow this pattern:

1. Battery / main switch on (often a key or switch on the dashboard or a panel near the driver).
2. Ignition on and wait for warning lights to check.
3. Start the engine and let air pressure build until the brake warning clears.
4. Lights as needed; in the dark or bad weather, headlights on.
5. Set destination/line with the matrix or roller-blind controls (IBIS or equivalent).
6. Gear/drive selection (automatic buses: select drive; manual-gearbox buses need clutch work).
7. Release the parking brake. Then drive.

If the bus won't move: check the parking brake, the stop brake, doors (door interlocks prevent driving with doors open), and air pressure.

Remap and learn keys in Options: every function (doors, stop brake, kneeling, indicators, horn, wipers) has a keyboard binding, and many players map doors and stop brake to comfortable keys or a controller.

Driving a Route

• Pick a map, a start date/time and a starting position, then place a bus and assign it a timetable trip. Starting positions on the map let you begin at the depot or out on the route; check the options your map offers.
• Timetable: the on-screen timetable (and AUXI's new timetable HUD if you use it) tells you scheduled times at each stop.
• At a stop: slow down gradually, stop close to the curb, apply the stop brake, open doors. Wait for passengers, close doors, release the stop brake, and signal before pulling out.
• Kneeling lowers the bus for accessibility at stops (if your bus supports it).
• Tickets: some passengers buy tickets from the driver. Use the ticket-selling interface when a passenger asks; give correct change.
• Rules: obey traffic lights and speed limits; AI traffic reacts to your driving.

The Spandau Map and Chronology

OMSI 2's flagship map is Berlin-Spandau:

• Line 92 from the original OMSI and the new Line 5 from U-Bahn Ruhleben to the Spandau psychiatric clinic (about 12 km, with a tight 5-minute frequency).
• Original timetables and tour plans for lines 5 and 92 are replicated.
• The chronology function lets you play Spandau between 1986 and 1994, including post-reunification changes and route extensions like line 137 to Falkensee. It also handles temporary changes like construction sites.
• Pick the year in the start menu; the map, buses and routes change accordingly.

Base Game Buses

Articulated bus tips: take corners wide, watch the rear section in mirrors, and avoid tight reverse maneuvers. The joint protection system can stop the bus if you bend too far.

Systems Worth Knowing

• Damage/failure model: buses can suffer malfunctions that take time to fix. If a warning lamp appears, check the bus manual.
• AI traffic: includes road, rail and subway traffic.
• Weather and seasons: rain, snow and fog affect grip and visibility.
• Editor: OMSI 2 includes map and scenery editors and supports a world coordinate system with DEM import, which is why so many community maps exist.

Add-Ons and Tools

Tips:

• Read store pages for bus/map compatibility. Some buses are designed for specific maps.
• Bus Company Simulator is a great way to add goals: manage your own company and economy.
• AUXI Expansion 1.50 is a strong quality-of-life pick: the new settings window, minimap and timetable HUD make routes easier to learn, and the AI Performance Scaler adjusts AI traffic and pedestrians based on frame rate and memory use.

Performance and Stability

OMSI 2 is an old engine and is CPU- and memory-bound:

• Lower AI traffic and pedestrian density first; this has the biggest effect.
• Reduce reflections and view distance on heavy maps.
• Memory limits: OMSI 2 is a 32-bit program, so big add-on maps can run out of memory and crash. Players have long used a "large address aware" (4GB) patch for this; check whether your current Steam build already has it before patching, and back up the executable first.
• System requirements (per Aerosoft's store page): 64-bit Windows 10/11, a 2.8 GHz dual-core CPU, 2 GB RAM (4 GB recommended), a 1 GB graphics card (2 GB recommended) and DirectX 9.0c. Treat those as the floor; heavy add-on maps want far more CPU.
• Add-on maps vary a lot in performance. Start on smaller ones if your PC struggles.
• Tools like AUXI's AI Performance Scaler can automatically balance AI density for you.
• Crashes on load are often caused by missing dependencies for a third-party map or bus. Check the add-on's requirements and log file.

Common Mistakes to Avoid

• Trying Spandau's Line 5 at rush hour first. Learn off-peak (or on a small practice map) first.
• Forgetting the stop brake, then rolling at a stop with doors open.
• Leaving the parking brake on and wondering why the bus is sluggish or won't move.
• Maxing graphics and traffic and blaming the game for stutter.
• Ignoring the timetable. Running early is a mistake too.
• Installing lots of unofficial mods at once. When something breaks, you won't know which one did it.
• Driving articulated buses like rigid ones. Swing wide, watch the rear.

Advanced Tips

• Learn one bus deeply. Knowing every switch in the MAN SD202 or NL202 makes you comfortable with most Berlin-era buses.
• Use chronology creatively: drive the same route in 1986 and 1994 to see how Spandau changed.
• Plan realistic shifts with tour plans (duty rosters) rather than single trips.
• Map an input device. A wheel or controller with door and stop brake buttons makes long shifts much more enjoyable.
• Explore the editor. Even small edits (like adding stops) teach you how OMSI maps work, and the community has extensive tutorials.

FAQ

Is OMSI 2 still supported? The base game is mature, but Aerosoft and partners actively update add-ons (Thüringer Wald, Berlin Linie 186, Valiant Citybus in 2026) and new add-ons are announced (ADL Enviro500 for Q4 2026).

Is Bus Company Simulator free? Yes, starting October 1, 2026 it's free to play permanently, according to the official announcement.

Which map should I start on? A small practice map if you have one, then Spandau off-peak. Line 5 runs on a tight 5-minute rhythm, so don't judge yourself by its timetable on day one.

Why won't my bus move? Check the parking brake, stop brake, door interlock, air pressure and that you selected a drive gear.

How do I stop OMSI 2 from crashing on big maps? Lower AI density and view distance, use a large-address-aware (4GB) patch, and make sure all dependencies for third-party add-ons are installed.

Does OMSI 2 support steering wheels? Yes. Configure the axes and buttons in the game's controller settings.

Sources

• OMSI 2: Steam Edition on Steam
• Steam news: Bus Company Simulator free from October 1, ADL Enviro500 announcement, Thüringer Wald update, AUXI Expansion 1.50, Berlin Linie 186 v1.2, Valiant Citybus updates, Aerosoft Publisher Sale
• Aerosoft OMSI 2 product page