V0.10 introduces a new cave system that adds new level of freedom when exploring the underground areas. It's an embedded level object that can be pre-made or generated. The old mine has been completely reworked:

And there is a brand new dungeon to play with right under the shuttle area.

You can destroy cave blocks with your drone with any drill equipped. The stronger the drill the faster you destroy the blocks.

The basic one:

And the one used for building miners:


Have fun and let me know in comments what you think!