While the Linux community is still waiting on the native Linux release of the OpenGL3-using Unigine Heaven tech demo with its heavenly graphics (it's being held off by a bugged ATI Catalyst driver), the core developers working on this advanced game engine continue adding in new features. One of the latest features added into this proprietary engine is physical destruction with a destructible body type currently offering three destruction patterns. The videos below show off what this physical destruction in the Unigine Engine looks like for a user.
Additionally, the Unigine Engine has received a performance boost in spatial subdivision, support of cylinder collision shape, tessellation optimization that give up to a 30% performance boost, and various other changes. These recent engine changes are documented on their development log. Below are the two destruction videos courtesy of Unigine Corp and their SDK.