Since the release of Blocks Tracks Trains a few features have been introduced.

• Version 1.2.0: Undo for Terrain and Structure editing. Recent changes to blocks and their colors can be undone. No more accidentially breaking your things :D
• Version 1.3.0: Better Train Controls. Combine as many locomotives and train cars as you like, couple and decouple them in Play Mode just as you want.
• Version 1.4.0:
  • Copy and Paste of Build Grids: Make once, use many times!
  • Free Look Mode: Tilt and pan the view in Fly Mode with your mouse. See the map from above.
  • Improved Color Sampling: Drag a box in Color Mode over the terrain or structures to sample the average of a color. Now you can mix any color you like.

• Generate a small, medium, or even huge tract of land
  
• Modify the landscape to your heart's content! Place blocks, remove blocks, the possibilities are truly limited to these two
  
• Build a network of train tracks, as complex as you like
  
• Design your own locomotives and carriages, or use prefabricated models
  
• Plant trees and shrubberies
  
• Plonk down some plastic people
  
• Erect houses, bridges, statues, monuments, mansions, castles, towers, lighthouses, flats & villas, aqueducts, and possibly quite a bit more synonyms for "buildings" from little blocks of wood and stone

• OS: Ubuntu 12.10 / SteamOS
• Processor: Dual-Core 2.0 GHzMemory: 4 GB RAM
• Memory: 4 GB RAM
• Graphics: Discrete GPU (Geforce GTX 1050 or Radeon HD 7950)
• Storage: 500 MB available space

• OS: Ubuntu 12.10 / SteamOS
• Processor: Quad-Core 3.0 GHzMemory: 8 GB RAM
• Memory: 8 GB RAM
• Graphics: Discrete GPU (GeForce GTX 480. Radeon RX 470)
• Storage: 500 MB available space