Steam News has details on a new patch that's now automatically available for Miner Wars 2081, Keen Software House's 6DOF shooter. In addition to bug fixes and optimizations, the update adds two free add-ons as well as the ability to play the game's single-player campaign without being logged in or even connected to the Internet. There's an accompanying update on the Miner Wars Website that discusses the patch, while also addressing two issues: reports of bad framerates, which is apparently happening on some systems with onboard video as well as a separate video card (they are working on a fix), and accusations of censorship, which they say are a misunderstanding based on a single deleted comment. Here's what the new patch includes:

• Offline single-player for Steam version of Miner Wars 2081 – in other words, now you don’t have to be connected to internet and logged into our servers to play the campaign.
• Optimizations and bug fixes, more info: http://www.minerwars.com/CurrentBuildFeatures.aspx
• Two new add-ons available for free as part of Miner Wars 2081 installation:
  • Cheats – infinite ammo, immortality, skip to any mission, and more (Ctrl+F1 in game)
  • 2.5D Experiment - multiplayer 2.5D add-on for MW 2081 - available as a set of 2.5D death-match maps (all 2.5D sectors have 2.5D as a prefix)