Towers

Towers are the main building blocks of Element TD 2. Towers are structures built by the player's builder that will damage creeps as they pass along pathways on different maps.

## Mechanics

### How to build

To build a tower, either select your builder and then select a tower from the bar that appears at the bottom of the screen, or press Space to open the tower table and select one of the tower icons. Then, left click where you want to place the tower. The builder will move to the designated location and place the tower structure, which then takes an amount of time to finish building depending on the tier of the tower.

### Requirements

Towers cost gold to construct and almost all of them also require unlocking certain Elements before they can be placed. Some of the strongest towers also require Essence, which is a highly limited resource. Each tower requires a valid building spot in order to be placed on the map and only one tower can be placed on each spot.

### Statistics

#### Damage

Each tower in the game can deal damage according to a numerical value to creeps. Upgrading a tower will increase the damage it deals per hit, and certain towers' abilities can increase their damage.

#### Damage type

Each tower has an associated damage type corresponding to the various Elements in the game. In the tower table interface, towers are primarily grouped by their damage type. For an overview of what damage type does well against which creeps, see Element types. For a list of which towers deal what damage type, see below.

#### Range

All towers have a set range determining how far away they can target creeps with their attacks. In the campaign, there are tower specializations for some towers and an upgrade that can modify the range of towers.

#### Attack speed

All towers have a rate of fire, also known as their attack speed, which determines how often they can attack. Certain towers' abilities can cause them to attack faster. Killing a creep with the Cursed modifier will apply a debuff that decreases attack speed for that tower and all towers around it. In the campaign, some tower specializations can modify the attack speed.

#### Area of effect

Some towers have attacks that can hit multiple creeps in an area around their target. Such area of effect attacks are sometimes referred to as 'splash' attacks and are represented by a numerical value. Some towers' abilities can allow them to hit multiple creeps without being considered area of effect attacks, or temporarily modify the area of effect value of their attacks. In the campaign, there are tower specializations for some towers that can modify the area of effect, and an upgrade that can increase any area of effect numerical value if it is already above zero.

### Tiers

Towers are generally grouped into different tiers corresponding to the number of Elements required to unlock that specific tower. In the tower table interface, after being grouped by damage type, towers are secondarily grouped by tiers. These tiers are known as:

* Single Element towers, which require only one unlocked Element to build,
* Dual Element towers, which combine two Elements at once,
* Triple Element towers, which require three distinct Elements to be unlocked and,
* Quad Element towers, which are a combination of four elements.

In addition to these tiers, there are a few towers that do not have a tier. Arrow and Cannon towers are always unlocked and considered basic or starter towers, while the Periodic tower requires all six elements to be unlocked as well as costing Essence to build. Notably all of these towers deal  Composite damage.

### Upgrading

Most towers can be upgraded, either into a stronger version of itself (called levels) or into a different tower tier, depending on which requirements have been met. Each Single Element tower can be upgraded up to level four, with the fourth level requiring Essence to be built. Dual Element towers can go as high as level three, while Triple Element towers can only be upgraded once. Quad Element towers have no upgrades available.

In addition, any level 1 Single Element tower can be upgraded into a Dual Element tower that contains that Element. Likewise, a level 1 Dual Element tower can be upgraded into a Triple Element tower if both of the Elements are part of that Triple Element tower. Level 1 Triple Element towers can be upgraded into Quad Element towers.

### Selling

Towers can be sold for a % refund of the total building and upgrade cost, depending on the game mode. This can be done in order to get back some or all of the gold cost for building it so it can be used for other towers, or to open up building spots.

### Targeting

All towers that have been built have access to targeting options. This is a behavior that can be set and changed for each tower individually which determines how the tower selects a target to damage. For more information on how targeting works, see targeting.

## Tower Table

#### Dual Element

* Atom Tower
* Lightning Tower
* Trickery Tower

#### Triple Element

* Astral Tower
* Laser Tower
* Nova Tower

#### Quad Element

* Railgun Tower
* Singularity Tower

#### Dual Element

* Poison Tower
* Disease Tower

#### Triple Element

* Runic Tower
* Ethereal Tower
* Jinx Tower

#### Quad Element

* Plague Tower
* Doom Tower
* Phantom Zone Tower

#### Dual Element

* Vapor Tower
* Ice Tower
* Well Tower

#### Triple Element

* Flooding Tower
* Wisp Tower
* Windstorm Tower
* Polar Tower

#### Quad Element

* Tsunami Tower
* Crystal Spire Tower

#### Dual Element

* Solar Tower
* Infernal Tower
* Blacksmith Tower

#### Triple Element

* Flamethrower Tower
* Haste Tower
* Corrosion Tower

#### Quad Element

* Obelisk Tower
* Rage Tower

#### Dual Element

* Mushroom Tower
* Bloom Tower

#### Triple Element

* Impulse Tower
* Golem Tower
* Root Tower
* Incantation Tower

#### Quad Element

* Archdruid Tower
* Tesla Tree Tower
* Life Altar Tower

#### Dual Element

* Howitzer Tower
* Geyser Tower

#### Triple Element

* Quake Tower
* Money Tower
* Muck Tower

#### Quad Element

* Shredder Tower
* Nuclear Tower
* Gravity Cannon Tower

### Composite

See Category:Composite\_Towers

* Arrow Tower
* Cannon Tower
* Periodic Tower