Keep hitting planet Earth to gather resources which can be used to hire workers, buy tools, and build machines in this addicting game! You'll have to carefully plan on which resources you need to gather, but also on which ones to spend.? Over 25 Objectives? Gather Wood, Iron, Copper, Gold, and Diamond? Trade Your Resources? Unlock Helpful Power-Ups? Visit Earth to Find Rare Gems? Online Leaderboard (compete with the world!)? Completely Free to Play (no in-app purchases)Note: This game requires an internet connection to play.