Structure

A structure is usually a stationary unit of mechanical or architectural nature. A structure typically serves a passive role such as generating resources, unit production, and access to technologies. Structures are usually have higher health and defenses than normal units. Structures are usually able to be repaired by worker units.

Resource Point
The resource point is an important structure. Resource points may produce resources, but usually, they have a large but limited amount of resources that could be harvested before being depleted.

Command Center
A command center is a very important structure in real-time strategy games. It is usually able to produce worker units. Resources are also usually dropped to this structure.

Barracks
A barracks is a similarly important structure in real-time strategy games. It usually produces offensive units. A game may have multiple barracks for different units. Mechanical units, support units, and transport units are usually produced in separate structures.

Tower
A tower is defensive structure that automatically attacks nearby hostile units. Towers sometimes serve as defense against flying units and stealth units. Towers are not only found in real-time strategy games, but also tower defense games and multiplayer online battle arena (MOBA) games.

Bunker
A bunker is an uncommon structure that lets storage of units within itself. The bunker provides protection to more fragile units, taking the damage to itself rather than letting the units inside get damaged. Sometimes, bunkers allow the stored units ability to still attack hostile units within their range or deal damage to attackers, essentially turning it into a tower.

Supply Depot
A supply depots is a passive structure that usually serve solely to regulate resource caps. Having additional supply depots usually increases resources caps, allowing a player to produce more units.

Forge
Forge is a fairly unimportant structure. It gives the player access to upgrades and sometimes unlocks advanced units and structures.

Shop
A shop is an uncommon structure that provides items in exchange for currency or resources. Games with shops usually also have an inventory system. Instead of a shop structure, a merchant character may be in place.

Transport Node
A transport node is an uncommon structure that provides instantaneous transportation to another area. It may be a one-way or two-way. A transport node may instead lead to another level, dimension, or sub-dimension.