Planet Explorers is an open world voxel based sandbox adventure RPG game set on a distant planet. The game uses a new OpenCL system based on the Unity 3D engine to allow players to change the terrain in anyway, create new objects in any form, and do it anywhere.
This is an RPG, so it will feature a full story arc complete with missions and side quests. The game will feature a single player story line as well as random single and multiplayer adventure maps. Multiplayer, both through LAN and online, will be featured prominently in Planet Explorers, including but not limited to build mode, adventure mode, cooperation mode, and versus mode.
Planet Explorers will be for PC and MAC for sure. Linux will be very likely (we're using the Unity engine, so it's a given, but we're testing this next week to be sure). No mobile versions are planned at this time.
This game will have a binding key that will link to your online multiplayer username. So it's no more or no less than Minecraft's DRM. You don't need to be logged in to play single player.