For a fun little sandbox experience,
Train Frontier Express could be exactly what you desire.
INDIEGAMES.COM

A remarkably fully featured offering.
EUROGAMER

A nice break from all the side-scrolling Indie games.
KOTAKU XBLIG Pick

WINNER 2011
Indie Games Summer Uprising

X Djing Вђ“ Music Mix Maker 2.1.4 Instant

You can BUILD, RIDE, SHARE with friends in a this landscape building and rail riding good time.

Sculpt your own landscapes, then HOP ONLINE to share your map, take a ride, or build together in REALTIME.

Train Frontier is both STYLIZED and FRIENDLY, taking inspiration from MODEL TRAIN SETS, while eschewing the more complex train sim format.

X Djing Вђ“ Music Mix Maker 2.1.4 Instant

While listed as "free" on platforms like the Microsoft Store and Apple App Store , the app follows a freemium model where many essential features are locked behind subscriptions:

is a virtual DJ studio designed by Music Topia, LLC for entry-level and casual mixing. Released in late 2022, version 2.1.4 focused primarily on bug fixes and general stability improvements to enhance the user experience. Core Features X Djing вЂ“ Music Mix Maker 2.1.4

: Access to all sound effects and hot cue points requires a paid subscription. While listed as "free" on platforms like the

: Access to 8 built-in audio effects to customize tracks. : Access to 8 built-in audio effects to customize tracks

X DJing is a powerful and intuitive dj soundboard designed to help you create professional dj mixes using a versatile music mixer, X Djing - Music Mix Maker - App Store

: Supports up to 4 hot cue points, loops (in/out), and parallel waveforms.