This game is currently in alpha stage, but looks amazing. Digging system is very interesting also you can cut a tree with chainsaw like a real lumberman! 
Really promising game. It will be on windows, Linux and Mac.
Check the trailer:
A bit old, but good enough video of playable alpha game version:
Website: http://starforge.com

Really promising game. It will be on windows, Linux and Mac.
Check the trailer:
A bit old, but good enough video of playable alpha game version:
Website: http://starforge.com
Spec: Win 10, ATI 7800 HD, res: 1280x1024x75. I support The Venus Project & Resource-Based Economy