LogiGun has been updated to version 1.3. In addition to some minor bug and level design fixes, the first (and hopefully not last) level pack has been added.
The first Classic Level Pack includes four levels from the original Logi-Gun updated for the new engine and design sensibilities.
You can get version 1.3 by re-downloading the game from your purchase email.
Also, watch this space for news about Steam Greenlight and the level editor!