PC $9.99 Region US
Games Simulation Train Simulator: Southern Railway S15 Class Steam Loco Add-On
Train Simulator: Southern Railway S15 Class Steam Loco Add-On: header artwork
Simulation · Bossman Games

Train Simulator: Southern Railway S15 Class Steam Loco Add-On

Train Simulator: Southern Railway S15 Class Steam Loco Add-On
Windows ESRB · Everyone
Mostly Positive · 79% of 14
DeveloperBossman Games
ControllerFull
Buy now Price verdict · US updated 1 hr. ago

Well reviewed at 79% positive. The current price is near its recorded low.

Why this verdict
Lowest since 7 Jul 2026 $9.99 · 20 days ago
Current discount -50% off $19.99
Player reviews 79% positive of 14
Quality score 79/100 · small sample
Value score 100/100

Price memory

Official-store evidence for this region · US

Price comparison supported
  1. Current official price $9.99
  2. Regular price $19.99
  3. Recorded low $9.99
  4. Compared with usual sales Not recorded
  5. Observed sale intervals 13.6 to 13.6 days · median 13.6 days
  6. Interval samples 1
  7. Observed window Jul 7, 2026 to Jul 21, 2026 · 13.6 days
  8. Confidence low

Offers

Official store prices and labeled keyshop comparisons

Official stores (1)
Steam
checked 1 hr. ago Lowest price
Store low $9.99 · Lowest across stores $9.99
Steam, official store, 50% off, $9.99
$9.99 Buy on Steam
Direct store link. Payment stays with the store.
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Price history

Accepted price history and recorded lows

Historical lows
Lowest since 7 Jul 2026 $9.99 2026-07-07
Lowest since 7 Jul 2026 $9.99
Lowest since 7 Jul 2026 $9.99
Current $9.99
Sale cadence
Recorded sale starts 2
Price events From the accepted price history
Jul 21, 2026
Sale started · -50% to $9.99
Jul 10, 2026
Sale ended · back to $19.99
Jul 7, 2026
Lowest since 7 Jul 2026 $9.99

About this game

What this game is, in the developer's words

Take control of an icon of Southern steam as the Southern S15 is now yours to enjoy in Train Simulator, courtesy of Partner Programme Developer, Bossman Games.

The S15 Class was originally formed from the mind of the London & South Western Railway’s Chief Mechanical Engineer, Robert Urie, as there was a need for a new locomotive to fulfil heavy freight duties in the early 1920s. Urie’s original mixed-traffic H15 design, which helped the LSWR in the midst of the war effort, would serve as the basis for his future locomotives.

With a more modern requirement - that would see a locomotive capable of serving south coast ports and running express dairy trains in and out of London - still in place, Urie changed key aspects of his H15 Class to produce a freight-dedicated locomotive. The result rolled out of Eastleigh Works in February 1920 as the S15 Class, and it was quickly established that this locomotive would be a very successful worker.

The first batch of LSWR’s S15 locomotives was 16-strong and finished production by May 1921. Two years later, the LSWR would be amalgamated into the Southern Railway as part of the Grouping Scheme, creating the “Big Four”. With this, Urie stepped into retirement and left Richard Maunsell to take over as Chief Mechanical Engineer, and with his new position, Maunsell took the opportunity to further develop the quickly proven S15 Class before a second batch was produced, and the resulting modifications were continued to see the class excel in service.

Based across the Southern Railway’s Western Region, from London to coastal ports of Southampton, Weymouth and beyond, the S15 Class was a well-abled freight locomotive that could shift heavy loads, at speed, with relative ease – and would often find itself at the helm of nightly express goods. Surprisingly, despite the specific design, and classification, that make the S15 a freight locomotive, the fleet was also found to be very capable at passenger work when required. This would make the S15s the longest lasting LSWR 4-6-0 engine in service.

The S15 Class held onto regular duties far into the 1960s, with the last being withdrawn in 1966. All 45 locomotives were sent to South Wales for scrap, but thankfully, a total of 7 were rescued and were only 2 of those have yet to be operational in preservation. Akin to being the longest lasting, the S15 is also the most prolific LSWR 4-6-0 to have survived the end of steam, and many enthusiasts get to enjoy a hint of yesteryear behind the powerful S15 Class.

From Bossman Games, the Southern S15 Class for Train Simulator brings challenging excursions to the exquisite West Somerset Railway (available separately and required to play the included scenarios).

Included Scenarios

  • Goods Arthur to Minehead
  • Minehead to Bishops Lydeard
  • Southern Workhorse

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


  • Southern Railway S15 Class in Olive Green with and without smoke deflectors
  • Southern Railway S15 Class in Maunsell Black with and without smoke deflectors
  • SR Bulleid 59ft Brake Third (Dia. 2121)
  • SR Bulleid 64ft 6in Brake Third (Dia. 2122) with "head out" passenger view
  • SR Bulleid 59ft Composite (Dia. 2316)
  • SR Bulleid 64ft 6in Composite (Dia. 2317)
  • Authentic whistle sounds
  • Opening Smokebox door
  • Realistic Steam Chest simulation
  • Realistic Brake simulation
  • Various Brake modes
  • Various disk and lamp codes
  • Advanced firing and a custom-written auto-fireman that allows you to focus on the driving
  • Dynamic smoke effect and fire mass
  • Detailed manual
  • 3 engaging scenarios for the West Somerset Railway (available as a separate purchase)
  • Quick Drive compatible
  • Download size: 170mb

Media

Trailers and screenshots from the store page

Games like Train Simulator: Southern Railway S15 Class Steam Loco Add-On

Shared tags, not the same series.

Train Simulator: Southern Railway S15 Class Steam Loco Add-On price history and current deals

Train Simulator: Southern Railway S15 Class Steam Loco Add-On for PC currently sells from $9.99 at authorized stores. Lowest since 7 Jul 2026: $9.99. That is 50% off the $19.99 list price.

Train Simulator: Southern Railway S15 Class Steam Loco Add-On reviews, playtime, and age rating

14 people have reviewed Train Simulator: Southern Railway S15 Class Steam Loco Add-On. 79% are positive. Steam calls that Mostly Positive. ESRB rates it Everyone.

Frequently asked questions

Answered from this game's own data. Where I have none, I say nothing.

How does the current Train Simulator: Southern Railway S15 Class Steam Loco Add-On price compare?
The price verdict is buy. The lowest current official price is $9.99.
Which stores list Train Simulator: Southern Railway S15 Class Steam Loco Add-On?
Train Simulator: Southern Railway S15 Class Steam Loco Add-On is tracked at Steam. This section lists authorized stores and links to their store pages.
Where can I buy Train Simulator: Southern Railway S15 Class Steam Loco Add-On cheap?
From $9.99 at Steam right now. That is 50% off the $19.99 list price. Its recorded low is $9.99, set on 2026-07-07.
Is Train Simulator: Southern Railway S15 Class Steam Loco Add-On worth playing?
14 people have reviewed Train Simulator: Southern Railway S15 Class Steam Loco Add-On. 79% are positive. Steam calls that Mostly Positive.
What age rating does Train Simulator: Southern Railway S15 Class Steam Loco Add-On have?
Train Simulator: Southern Railway S15 Class Steam Loco Add-On is rated ESRB Everyone, PEGI 3+, USK 0+ across boards.
Scores
Steam reviews Mostly Positive · 79%
79% positive of 14
Media (9)
Tech
ControllerFull
Requirements
System requirements platform
Minimum
Minimum:
  • OS *:Windows® 7 / 8.1
  • Processor: 2.8 GHz Core 2 Duo (3.2 GHz Core 2 Duo recommended), AMD Athlon MP (multiprocessor variant or comparable processors)
  • Memory:4 GB RAM
  • Graphics:512 MB - 1GB with Pixel Shader 3.0 (AGP PCIe only)
  • DirectX®:9.0c
  • Hard Drive:40 GB HD space
  • Sound:Direct X 9.0c compatible
  • Other Requirements:Broadband Internet connection
  • Additional:Quicktime Player is required for playing the videos
  • Graphics:Laptop versions of these chipsets may work but are not supported. Updates to your video and sound card drivers may be required
Facts
DeveloperBossman Games
PublisherDovetail Games - Trains
ModesSingle-player
Steam features
WorkshopCloudFamily Sharing
Ratings
ESRBEveryone
New Zealand

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Australia

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PEGI3+
USK0+
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