Terasology is an open-source survival and discovery game with influences from Minecraft, Dwarf Fortress, and Dungeon Keeper. The game is in a pre-alpha state, but it's already fun to play!
Our goal is a game that pays ample tribute to Minecraft in initial look and origin, but stakes out its own niche by adopting the NPC-helper and caretaker feel from such games as Dwarf Fortress and Dungeon Keeper, while striving for added depth and sophistication in the foundation systems akin to DF.
A key part of the game will be building up an estate of some sort and managing specialized minions to climb up the ladder of discovery, while surviving in a world that might just be full of things that want to kill you.
Some more in bullet form!
A deeper tech tree to climb, achievable mostly solo but heavily aided by minions or other players
Crafting more focused on realistic workshops improving quality and quantity based on upgrades, specific minions, etc
A more vivid world that's alive and changes over time, even without direct manipulation by the player
Autonomous NPC societies that grow on their own and can both be source of minions as well as valuable trading partners. Or be your greatest enemy...
Various kinds of blueprinting to allow the reproduction of specific objects, tradeable with other players. Also similar systems to designate areas as special in some fashion, like enclosing workshop areas or defining defenses
Portals to center societies around and allow easy travel (but not transfer of goods) between settled areas
Meaningful (and meaningless!) statistics about your world
Realistic simulations of world elements like liquid flow, structural support, natural growth, and the dangers of delving deep
And maybe most importantly: Build a community around an open source project that will be able to achieve all this and more - making Terasology more than just a game