For the first time, bus, tram and train are simulated extremely realistic in a single game – and you can drive them, build them or create the world around. LOTUS – simulation will never be the same!
All Reviews:
Mostly Positive (129) - 72% of the 129 user reviews for this game are positive.
Release Date:
Sep 14, 2018

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Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“The technical basis for LOTUS is created. You can build and furnish maps, you can import and configure vehicles – and of course you can drive!
The necessary complex tools are basically finished and the simulation has the substantial base features to provide a driving experience with highest claims for realistic physics, sound and system depth. With your feedback we not only want to optimize the tools with regard to your individual demands, but also improve and extend the gameplay to reach our shared purpose: A simulator not only for driving bus and railway, but also to set your creativity free, develop your skills, perhaps take a stroll down memory lane, connect with sympathizers and which most importantly provides a lot of fun for a very long time.”

Approximately how long will this game be in Early Access?

“We plan to stay in Early Access until approximately 2019 – just as long as it takes to implement all planned features.”

How is the full version planned to differ from the Early Access version?

“The following of our planned features are not yet implemented in LOTUS:
  • LOTUS-Simulator
    • AI
      • scheduled traffic and surrounding traffic
      • pedestrians, passengers
      • interactions with AI
    • Gameplay
      • module for road vehicles (bus and trolleybus package) (sold separately when available)
      • schedules and block schedules
      • signals
      • multiplayer including radio and control center
    • Content
      • Map “Berlin”
      • enhanced vegetation
    • Environment
      • weather and seasons
    • Engine
      • enhanced graphic effects
  • Map editor
    • tunnels
    • free forming and painting of terrain
    • AI paths
    • enhanced overhead wire construction

What is the current state of the Early Access version?

“The following features are already implemented:
  • LOTUS-Simulator
    • Gameplay
      • driving physics, including real coupling and rail physics
      • simulation of systems (switches, lights, animations, …)
      • individual keyboard and game controller settings
      • free train assembling
      • VR support
      • vehicle-specific real-time support system for incorrect operations
    • Content
      • dummy map “Diorama”
      • Berlin tram GT6N at 90%
      • basic scenery objects for free use
    • Environment
      • daytime, solar altitudes
    • Engine
      • base engine with file management, options, GUI, simulator, Steam interface and efficient multithreading
      • real-time lighting, dynamic shadows, gloss, normal-/bump maps, parallax occlusion, particle system (smoke, steam)
      • 64bit
      • sounds
      • plugin interface for external hardware
      • individual adjustment of languages and language files
  • Map editor
    • streets and crossings construction
    • rail track and switch construction
    • laying splines and polygons
    • placing objects
    • bridges
    • simple and catenary lines
    • placing maps on a real world model
    • displaying world map beneath the terrain
    • real digital elevation model (DEM) import
  • Content tool
    • comprehensive content management system
    • import of vehicles and scenery objects
    • substantial configurations of animations, lightings and vehicle behaviour, including complex car configurations, such as Z-positions and Jacobs bogies
    • vehicle scripts and script simulation
    • modularization of vehicles, such as displays, printers, passenger information
    • repaints
    • mesh animations
    • particle systems configuration on vehicle
    • extensive configuration of materials, including night textures and surface character

Will the game be priced differently during and after Early Access?

“This price of the Early Access version of LOTUS is the same as the price of the release version. We primarily address players and addon developers who appreciate an intense communication with the developers, want to implement their own projects in an early stage of development, want to influence the development of LOTUS or just want to be players from the very start.”

How are you planning on involving the Community in your development process?

“During EA we offer an intense, fast and direct one-to-one support and the opportunity to direct individual requests to the developers, discuss them with them and to possibly integrate them in our application. In addition, every single bug report is of great value and will be processed appreciatively.
Everybody will be able to take part in surveys regarding the next features to be implemented in LOTUS.
Our simulator is so diverse and extensive that we are depending on feedback from different systems, from addon developers with different and international standards and different ambitions as well as from players with different levels of knowledge – to reach our high claims when the release has come, which is why we need you!”
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Recent updates View all (23)

May 9

Patch 1.EA.031

**** PLEASE NOTE: Important changes to the map and vehicle file format! Please make backups! ****

- Simulation: Setting up vehicle constants is now possible
- Simulation: More precise log entries concerning taking screenshots

- MapEditor: From now on, bridges are possible! Please stick by the lexicon article exactly! :) The function refresh middle tile from now on works only with the layer set in the tool bar.
- MapEditor: Vehicle lists for entrypoints and (later) AI, as well, added.
- MapEditor: Further properties of entrypoints can now be configured: gauge, length and power supply, as well as the assignment of vehicle lists for the three magic buttons in the Singleplayer config (random vehicle etc.) added
- MapEditor - Bugfix: Preview images could not be saved
- MapEditor: F5 key removed

- ContentTool: Vehicle constants can now be configured - those will be used by vehicle creators to configure fine distinct details between vehicles of - usual - the same type, for example an additional middle entry, etc.
- ContentTool: In the vehicle filter, entrypoint compatibility can be set up as well (power supply), so that if the user limits his vehicle filter to the entrypoint compatible vehicle, this value will be used. The gauge is used as well, but currently not the length.
- ContentTool: The variables "veh_number" (car number) and "veh_registration" are now set by the simulator and can be used in the script. Vehicle creators can now use them to define number-dependend designs and defects.
- ContentTool: Introduction of the script procedure "InitializeAfterConstSet", which is called after the vehicle constants, car number and registration have been set.
- ContentTool: Module communication via broadcasts added (see lexicon).

- Content - GT6N: Car number added
- Content - GT6N: PIS display in all cars added
- Content - GT6N: PIS module communcation changed to the new broadcast commands - addon modules have to be reconfigured!
- Content: Texture patch Audi, to remove the white gap on mipmaps
- Content: Yufas container updated
- Content: TrafficLight_1_gr_F3.lob repaired
- Content: Further Berlin buildings and a small wall :)
- Content: Correction of the lash lamps (?), they should now light with switched of detail light sourced, as well (container from Rolf)

- Language: New entries!
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April 12

DLC Munich Tram - Patch notes 1.0.1

Changelog EA-version 1.0.1:
  • All textures of the map and map objects were now provided with mipmaps (problem with black textures is solved by this)
  • Already placed street lighting made functional
  • Vegetation at Scheidplatz hugely improved
  • Numerous parking cars placed along the route
  • Numerous road construction bugs fixed (polygons)
  • Correction of catenary problem (main switch drops out at Stachus towards Sendlinger Tor)
  • Entrypoint Scheidplatz laid on correct track
  • Backdrops fixed at:
    • Lenbachplatz (Neptune Fountain)
    • Nordendstraße direction Sendlinger Tor

Vehicle Tram R2.2b:
  • All textures of the vehicle are now provided with mipmaps (problem with black textures is solved by this)
  • NEW: Lift lift for wheelchair users fully functional integrated
  • Front and side roller blinds now functional
  • Key for key switch in cockpit added
  • Cockpit and Passenger Compartment Camera Perspectives Newly Adjusted
  • Special announcement "Training trip" was added
  • Matrix now switches to the next course shortly before reaching the final stop.
  • The stop brake can now be actuated by pressing the "Num *" key.
  • Increased announcement volume
  • Sliding windows in the cockpit are now correctly visible
  • Cockpit lighting now switches on automatically when "Automatic" is selected, when door 1 is open and passenger compartment lighting is switched on.
  • Passenger compartment lighting now switches on automatically only with "automatic" mode
  • Brake light no longer illuminates at standstill
  • A message will now be displayed when trying to select a journey between 9 p.m. and 7 a.m.
  • Driver door can now also be opened from the passenger compartment perspective
  • Bugfix: Doorlights now work correctly
  • Bugfix: automatic door control works even when battery main switch is switched off
  • Bugfix: IBIS - selection of special announcements now works correctly
  • Bugfix: Pressing the door button for "Door 2" in the cockpit no longer causes door 2 not to open afterwards
  • Bugfix: when reversing you can now also brake when the main switch is off
  • Bugfix: Emergency brake now also acts on the rail brake
  • Traction current limitation does not limit the maximum speed anymore
  • Traction current limitation now no longer reduces the tractive power so much
  • Indicators in the cockpit now also light up when the cockpit is switched off
  • Indicators no longer dazzle in fog
  • Luminosity of the high beam slightly reduced
  • Sounds built in for:
    • Sliding window in cockpit
    • Cockpit door
    • validator
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About This Game

LOTUS-Simulator is a driving simulator in a class of its own! At the beginning, the player chooses freely a vehicle and drives it around town, enjoys the ultra-realistic feeling of driving and the original sounds and may even forget that the vehicle is virtual. Once gripped by the excitement of simulation driving, the standards increase: stick to tight schedules, carry special passengers, master the difficult traffic. But that’s not all. The ambition grows with the experience: Now the multiplayer is played under real conditions – the colleagues in the control centre coordinate by radio, the game leader set challenges in the middle of the road, unpredictable weather, real duty rosters and long shifts. And after all, how about recreating the way of the school bus and to master the student’s traffic this time on your own? Didn’t the mate from the historic vehicle society have an ancient tram car with crank control standing around? You could breathe life again into it in the simulator – as a museum run or maybe even at the time it originates…

With LOTUS, dreams and ideas come true – and the best of it: every good realization will find followers and supporters that are hoping for extensions or are looking for exhausting the adventure of simulation driving. They are waiting for you!

LOTUS, that means: L like Leitstelle, (German, control centre), O like omnibus, T like tram, U like underground, S like suburban train.


  • Modular structure: Buy and play only what you are interested in – vehicles of the railway, like trams or trains, or vehicles of the road, like buses and trolleybuses, or even other modules that will be released later.
  • Realism: Driving physics, environmental physics, graphical effects, sounds, weather, seasons and the world coordinate system are uncompromisingly realistic – that is our first priority.
  • Multiplayer: Driving different tours with friends, greeting each other at the meeting point, ensure the connection by radio, coordinate everything in the control centre on your own or follow the instructions of your colleague – this and much more is provided by the multiplayer of LOTUS.
  • Map editor: With many tools, aids and quite a few ingenious gimmicks mountains are moved, embankments planned, tracks laid and streets tarmacked. Afterwards the landscape is shaped and decorated with buildings, trees, lights, stops, benches, fences and much more.
  • Content tool: Whether a single scenery object or a whole vehicle – with the content tool the objects are configured. From material settings to complex animation, from the design of the physics, the sound settings and the import and debugging of scripts, the content tool accompanies and supports the developer.
  • Plugin interface: A discarded crank, the board information system with display, a driver’s desk or a whole cockpit can be operated with the simulator and get information back from it by the use of the plugin interface.
*Schedules, passengers, traffic, multiplayer and weather will be enabled during Early Access and are not available from start!

System Requirements

    • OS: Windows 7, 8, 10
    • Processor: 2,6 GHz, 4 cores
    • Memory: 4 GB RAM
    • Graphics: 512 MB VRAM
    • Storage: 5 GB available space
    • Additional Notes: OpenGL 3.3

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