Whistle Sim

RAMcgi

About this game

This is a simple app to simulate the pull of a whistle rope. Rather than just an off-on soundboard, this one simulates the actual pull of the whistle valve using effects available in the Unity engine. Some other background sound options are available as well.

Other whistles and horns might be added if requested by reviewers.

Backstory: The Nashville Steam Preservation Society is working to restore a J3 steam locomotive No. 576 that has sat idle for more than 65 years. After gathering support, NSPS was able to raise enough funds to move the 576 to the Tennessee Central Railway Museum where it will be restored for steam powered excursion passenger service for Nashville, TN. To celebrate, NSPS is hosting a revival event to celebrate the future removal of the locomotive from the park and the beginning of the process of rebuilding her for service. Previous fundraiser events have involved the whistle from the locomotive being powered by compressed air, but it just doesn't sound right without being on the locomotive with a full head of steam. For special events during the restoration we connect a whistle pull rope to a computer input and simulate the real whistle with PA speakers using this app. There was no app or program available that could do what was desired and sound realistic so NSPS member Alex Mullins set to work to make this app using the Unity engine.

Ratings and reviews

Edit: Updated review for 2025/2026 Absolutely still love this app! I would prefer ads to be not needed, as they slow down older devices, as well as can be accidentally tapped on. I would buy whistles and horns to support the developers for sure! I'd love a K5CA-LS Canadian Emergency Horn (Both low and high modes), and some nice K3Ls From VIA Rail! Really looking forward to the future of the app! Cheers!

it sounds amazing, especially for using the whistle and horn for videos. wish there is more whistles and horns eventually. but its still fun.

I love this app very much. This app is awesome you guys should make more soundboards of steam locomotives for this app. That would make the experience even more amazing this is a great app😊😊 You should add more sound effects once you get more steam engines as well like being able to control the speed of the train with a chugging sound effect and stuff like that.

What’s new

-Google/Unity backend updates bringing the app up to current standards.
Let us know in the comments whether you want unintrusive ad support or a whistle store. We need to pick a revenue source to encourage future development and upkeep.

Known Issue: deprecated input features broke the diesel horn on some devices. Turn on the pull rope in the options as a temporary fix. This will be ironed out in the next major version in 2026.