Timber and Stone!

In this city-building strategy game, you control a group of exiled travelers who decide to restart their lives in a new land. They have only the clothes on their backs and a cart filled with supplies from their homeland.

Terasology (started under the name Blockmania) is an open source project started by Benjamin “begla” Glatzel to research procedural terrain generation and efficient rendering techniques in Java using the LWJGL. The engine uses a block-based voxel-like approach as seen in Minecraft. After proving itself as a solid tech demo begla was joined at first by Anton “small-jeeper” Kireev and Rasmus “Cervator” Praestholm and a full-fledged game concept was born.

The Fun-Focused Free Software Voxel World Game.

Cube World is a 3D action RPG currently in development for PC. It features a huge procedurally generated world made up of cubes!It may look like another Minecraft clone but this is more down to exploration. Find roads leading to a village. Get quests and talk to NPC's. Its inspiration mainly comes off of Legend of Zelda, but open world.

Unturned is a sandbox game in the emerging multiplayer apocalypse survival genre. Rather than focusing on being an MMO it provides players with easy systems to sit down and survive the zombie infestation with their friends. Over the course of a typical adventure, groups will have a blast fortifying locations, scavenging for supplies, trying to live off the land and negotiating with other people.

Stonehearth is a game about exploration and survival in an epic fantasy setting. Your job is to help a small group of settlers survive and carve out a place for themselves in a hostile land. You’ll need to establish a food supply, build shelter, defend your people, and find a way to grow and expand, facing challenges at every step.

You are marooned on the shores of an infinite blocky world. Explore, mine resources, craft tools and weapons, hunt and make traps. Build a shelter to survive nights and share your worlds online. Possibilities are infinite in this sandbox survival and construction game.

Free (as in freedom) open-source RTS http://alternativeto.net/software/age-of-empires-iii/ engine. Written from scratch in C++14 and Python, using OpenGL + GLSL.

Minecraft Clone to PSP

Wurm Online is an independent, ground breaking MMO that allows players to dig, flatten, raise and shape the land and create the frontier world they live in.

Castle Story is a creative voxel-based strategy game in which you can build castles one brick at a time using an army of little characters called "Bricktrons".

Empires! is a real-time strategy game about building and ruling a historical empire.Beginning with a small village, your task is to build a large, flourishing empire!Take control of your citizens and guide them to gather resources, construct new buildings and research new technologies. It may not be easy to survive the first days when your town is taking it´s first steps, but as your city grows you will definitely face new challenges when ruling a large empire. Try yourself if you are able to build thegreatest empire of all times! »