You can design and construct carts using timbers and other building materials.

A salad can be made from:

Barbarians prefer to destroy anything made out of wood and will avoid attacking the player(s).

Research gives you access to better tools and constructable elements including:

Transportation technology allows an engineer to build:

A shovel can be used to dig through the following kinds of earth:

An engineer can always construct the following from basic natural elements without any research:

A rusted sword can be melted down to:

The furnace can use the following as fuel for fire:

Every tree chops down into the same kind of log, a "tree log."

After removing a block from the ground where grass had previously grown...

Having dug a hole an engineer cannot build anything in it.

A wheeled object is typically subject to gravity and may roll down a hill.

Mining allows the engineer to uncover: