Train Simulator: Network SouthEast Class 121 DMU Add-On (AppID: 258646)

Type: dlc Genre: Simulation Developer: Dovetail Games Publisher: Dovetail Games - Trains Release Date: Jun 2014
Train Simulator: Network SouthEast Class 121 DMU Add-On game header image

Train Simulator: Network SouthEast Class 121 DMU Add-On - Steam Analytics & Details

Train Simulator: Network SouthEast Class 121 DMU Add-On has 0 current players. Currently priced at $0.20, it represents green value compared to similar Simulation games.

Total Players
0
Price
$0.20
Genre
Simulation
Developer
Dovetail Games

Media Gallery

Train Simulator: Network SouthEast Class 121 DMU Add-On game capsule image

Screenshots

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Game Insights

Buy Verdict

Watch — $19.99.

Decent deal at 0% off, but might drop further. Watch for better opportunities.

~19 days until next sale

Value Score

Great Value — 100th percentile.

Price-to-player ratio ranks in the 100th percentile.

Market pricing tier

Frequently Asked Questions

Is Train Simulator: Network SouthEast Class 121 DMU Add-On worth buying right now?
Watch — $19.99. Decent deal at 0% off, but might drop further. Watch for better opportunities.
When does Train Simulator: Network SouthEast Class 121 DMU Add-On go on sale?
Decent deal at 0% off, but might drop further. Watch for better opportunities.

Genre Benchmarks

Value Ratio Top 0%

Price History

Lowest Price
$0.20
Feb 2026 across all regions
Current Price
$0.20
US region

No Recent Price History

Price history data will appear here once more pricing information becomes available.

System Requirements

Platform Support
Windows
Windows Requirements
Minimum:
Minimum:
  • OS *:Windows® Vista / 7 / 8
  • Processor:Processor: 2.8 GHz Core 2 Duo (3.2 GHz Core 2 Duo recommended), AMD Athlon MP (multiprocessor variant or comparable processors)
  • Memory:2 GB RAM
  • Graphics:512 MB with Pixel Shader 3.0 (AGP PCIe only)
  • DirectX®:9.0c
  • Hard Drive:6 GB HD space
  • Sound:Direct X 9.0c compatible
  • Other Requirements:Broadband Internet connection
  • Additional:Quicktime Player is required for playing the videos
Recommended:
Recommended:
  • Graphics:Laptop versions of these chipsets may work but are not supported. Updates to your video and sound card drivers may be required
  • Additional:Quicktime Player is required for playing the videos
Controller Support
full
Pricing
Paid Game
CDN$ 21.99 (CAD)

Additional Information

Categories
Single-player Downloadable Content Steam Achievements Full controller support Steam Trading Cards Steam Workshop Steam Cloud Steam Leaderboards Family Sharing
Supported Languages
English, German

Current Pricing

💰
CDN$ 21.99
Regular Price
Historical low: $0.20 (Feb 2026)

Additional Information

🆘 Support
🎁 Purchase Options
1
package options

Developer Analytics

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About This Game

Arguably the most useful of first generation diesel multiple units (DMUs), the Class 121 ‘Bubble Car’ comes to Train Simulator in distinctive Network SouthEast livery.

Detailed Description

Arguably the most useful of first generation diesel multiple units (DMUs), the Class 121 ‘Bubble Car’ comes to Train Simulator in distinctive Network SouthEast livery.

The unusual single-car units were manufactured by Pressed Steel Company from 1960 onwards and introduced by British Rail for use mainly on the Western Region and around London on suburban and branch line duties. Their distinctive exhaust pipes designed to fit around a large four-digit headcode indicator box made these units fondly regarded by rail fans for their unpretentious appearance and old-fashioned interior and performance characteristics.

The ‘Bubble Cars’ became familiar for running Network SouthEast services and upon privatisation of British Rail, the fleet was operated by only one passenger company – Silverlink – with several more units in departmental duties with Railtrack. Today, two Class 121 models remain in revenue generating service with Chiltern Railways, representing the last chance to ride on 1960s slam-door stock on the main line in the UK and signifying a remarkably long life for these fans’ favourite. Five motor cars also remain in preservation across heritage railways in the UK.

The Class 121 for Train Simulator recreates the model as it operated for Network SouthEast between London and the western Home Counties in the 1980s. Features include the prominent exhaust pipes at the motor end, manual gear change and passenger view with a slightly weathered finish.

The locomotive is also Quick Drive compatible, giving you the freedom to drive the Network SouthEast Class 121 on any Quick Drive enabled route for Train Simulator, such as those available through Steam. Also included are scenarios specifically for the Great Western Main Line route (available separately and required to play these scenarios).

Scenarios


Three scenarios for the Great Western Main Line route:

  • Training: Class 121 Simple & Expert Controls
  • Tourist Shuttle
  • No Go for Greenford

More scenarios are available on Steam Workshop online and in-game. Train Simulator’s Steam Workshop scenarios are free and easy to download, adding many more hours of exciting gameplay. With scenarios being added daily, why don’t you check it out now!

Key Features


  • Class 121 ‘Bubble Car’ in Network SouthEast livery
  • Exhaust pipes
  • Manual gear change
  • Passenger view
  • Quick Drive compatible
  • Scenarios for the Great Western Main Line route
  • Download size: 157mb

Frequently Asked Questions

How many players are currently playing Train Simulator: Network SouthEast Class 121 DMU Add-On?
0 players are currently in-game on Steam.
Is Train Simulator: Network SouthEast Class 121 DMU Add-On free to play?
Train Simulator: Network SouthEast Class 121 DMU Add-On costs $0.20 on Steam.
What genre is Train Simulator: Network SouthEast Class 121 DMU Add-On?
Train Simulator: Network SouthEast Class 121 DMU Add-On is a Simulation game.
Who developed Train Simulator: Network SouthEast Class 121 DMU Add-On?
Train Simulator: Network SouthEast Class 121 DMU Add-On was developed by Dovetail Games and published by Dovetail Games - Trains.
What platforms does Train Simulator: Network SouthEast Class 121 DMU Add-On support?
Available on Steam for Windows.