Maybe take a look at flow a little bit, and first line second paragraph you might mean friend and not friendly? Overall though, neat story about two friends and the world they interact in. I wonder if Anne and Joseph would be good friends in real life, too!
Like the idea of the crossover between Minecraft and real life. Also opens up the possibility for perhaps real life confrontation between the two players and whoever stole their supplies. That sense that virtual violence is so easy but in real life violence involves something way more horrific. Agree about the friends/friendly sentence in fact that whole sentence just needs to be ironed out to read better and then it would be fine.