When comparing Lego Worlds vs Terasology, the Slant community recommends Lego Worlds for most people. In the question“What are the best voxel-based games for the PC?” Lego Worlds is ranked 5th while Terasology is ranked 9th. The most important reason people chose Lego Worlds is:
Compared to other games that focus on building structures out of voxels, Lego Worlds offers advanced tools for building the world around you. The game includes tools for managing large amounts of surface area easily. Actions like flattening a surface, creating a sphere or extruding an area don't require tedious manual labour and can be done quickly. It allows for much quicker turnaround time from idea to end result.
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Pros
Pro Has advanced tools for building things out of Lego blocks
Compared to other games that focus on building structures out of voxels, Lego Worlds offers advanced tools for building the world around you. The game includes tools for managing large amounts of surface area easily. Actions like flattening a surface, creating a sphere or extruding an area don't require tedious manual labour and can be done quickly. It allows for much quicker turnaround time from idea to end result.
Pro Well written in Java
Java is well documented.
Pro Nice looking
Shaders, bloom, film grain and other effects can be enabled.
Pro Free sandbox alternative
The game is inspired by other titles like Minecraft and Dwarf Fortress.
Pro Fully moddable
In the game you can create a mod and submit it as a module. You can select multiple modules when you make a new world.
Pro Extremely modular
The engine allows mix-and-match of features that you need.
Pro Active community
The community is very active in the development of the game, they participate regularly to Google Summer of Code and Google Code In.
Pro Can be Minecraft competitor
An open source alternative, fully customizable; easy mod support based on module pieces.
Cons
Con Map size is limited
While the map is large, it isn't as massive as it is in other voxel based games.
Con Steep learning curve
The game gives access to a lot of advanced functionality right from the get-go with very barebones explanations on what the tools do.