Sort of. You can choose to download a version of Cumunista to your PC or Mac device that will run without an active Internet connection (although settings, features and progress won't synchronize until you do come online again). Additionally, the browser edition of Cumunista has an offline mode setting, which will quickly download all of the assets you need (around half a GB currently) and you can continue to play straight from the browser if you so desire. This option also saves most of your progress and choices to your cookies, so make sure you have them enabled and use the same browser if you want to synchronize everything again. There is no offline LAN feature, nor do we plan to add one, since it's unlikely to ever be used.