This is a good project:

http://www.kickstarter.com/projects/902505202/castle-story?ref=live

Summary: Castle Story is a voxel-based creative strategy game about building castles brick by brick and defending them against enemies.

• Build any structure you can imagine! Using 2x1 blocks, create structures that are not only good-looking, but also functional. Your Bricktrons need to be able to navigate your castle to build it and to keep the monsters out! 
• Physics! Watch a tower crumble to the ground realistically when its foundations can no longer support it. The entire world obeys to the laws of physics which means that you need to build cleverly so your castle can withstand attacks from projectiles and explosives.
• Sandbox! Build a huge sprawling fortress, a single impenetrable bunker or a network of underground tunnels. The choice is yours. Castle Story rewards imagination and ingenuity.
• Strategy! Command your Bricktrons as they build your castle brick by brick. Manage the way they work, what resources they gather, and the places they explore. Use your resources to build weapons and armor for your Bricktrons and all kinds of upgrades for your castle.
• Combat! Using shields, swords, bows and lots more, your Bricktrons can defend themselves against the hostile creatures inhabiting the world of Castle Story. Lead your Bricktrons through tough fights, and use your wits to gain an advantage. You can even build catapults to rain destruction on your foes!
• Magic! The world of Castle Story is permeated with all kinds of magic. Discover resources with magical auras and learn to mix them to create effects. Explore strange places and find mysterious artifacts left behind by unknown civilizations.