Seed:0.4.0 first dig and get wood and thn craft wooden axe then get stone and craft stone axe. Right were you start dig straight down firstly you should fin ion then gold and then diamond then let another person join and duplicate by having two people in one inventory and you want to duplicate diamond hold them down at the same time and then you would have duplicated... Enjoy
If you run into problems with zombies in your area that are getting in your way you can capture them by creating a 6x6x2 (or bigger). Doing this will keep them out of your way so you can create houses or anything of else of your liking.