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

Sssofia-002.7z (HD - 2K)

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.

Sssofia-002.7z (HD - 2K)

The file is a compressed archive using the 7-Zip format . The ".002" extension specifically indicates it is the second part of a multi-part (split) archive .

: Right-click, select Show more options , then choose 7-Zip > Extract Here . Windows 10 : Right-click and choose 7-Zip > Extract Here . SSSofia-002.7z

To view the contents of this file, you must have all related parts (e.g., SSSofia-001.7z , SSSofia-002.7z , etc.) in the same folder. How to Open Multi-Part 7z Files The file is a compressed archive using the 7-Zip format

: Double-click the file to use the built-in Archive Utility , or use the free The Unarchiver if the built-in tool fails. Windows 10 : Right-click and choose 7-Zip > Extract Here

: Always right-click on the file ending in .001 (or the base file if no .001 exists) rather than .002. Extract the contents :

: Ensure every numbered segment of the file is in the same directory.

: Use apps like ZArchiver or iZip to handle the extraction. Recommended Tools