Swords

These include:

Short Swords
The Shortsword is used to fight enemies. It has a "Very Fast" attack speed, but isn't as strong as a Broadsword. It attacks through rapid stabs appearing only at the front of the player, inhibiting its usage agaisnt worms and other flying enemies, it is however extremely efficient at attacking enemies that walk or stand still.

Due to their low damage and the armor of walking enemies their use is limited. Investing in a copper bow instead of a copper sword is recommended.

There are currently five known versions of the Shortsword:
 * Copper Shortsword (6 DMG)
 * Iron Shortsword (8 DMG)
 * Silver Shortsword (doesn't exist?)
 * Gold Shortsword (11 DMG)
 * Demonite Shortsword (16 DMG)

Broadswords
The Broadsword is used to fight enemies. It has an Average attack speed, but allows you to deal more damage to monsters than a Shortsword or any other tool. It swings in a wide arc over the players head, allowing you to easier fight off flying enemies and jumping zombies/slimes. Its long hit time also makes it particularly effective against worm enemies, as it is liable to hit these many times on each pass.

There are eight currently known versions of the broadsword:
 * Wooden Broadsword (7 DMG)
 * Copper Broadsword (8 DMG)
 * Iron Broadsword (10 DMG)
 * Silver Broadsword (11 DMG)
 * Gold Broadsword (13 DMG)
 * Demonite Broadsword (Light's Bane) (16 DMG)
 * Phase Blade (25 DMG)
 * Fiery Greatsword (34 DMG)

Blade of grass
The Blade of Grass is a weapon with a large reach equivalent to the Fiery Greatsword. It does 28 damage and has a Slow speed. At the moment, it could be considered one of the best 'sword type' weapons.

The Blade of Grass is a random drop from the Hornet, found in an underground jungle.

The Blade of Grass can be upgraded from a Silver Broadsword with 40 Jungle Roses and 20 Stingers.

Muramasa
A powerful, fast sword currently only found within Dungeon chests.

It's range is slightly longer than the Phaseblade and hits with rapid slashes. When used, it will create a small bit of light.

Unlike normal swords, you can hold down your mouse button to swing the sword continuously, much like an axe or a hammer.

Trivia
It is a reference to japanese blacksmith Muramasa, it's said that his swords were evil and bloodthirsty.

This weapon can be found in nearly every rpg or game with rpg elements in it.

Phaseblades
Phaseblades are powerful sword weapons which project a concentrated beam of laser-like light, which possesses a long reach and inflicts 21 damage against foes. Additionally, the Phaseblade emits a small amount of light, not unlike a Torch. However, their strength is off-set by the comparative rarity of the materials needed to craft one.

Creation
You can craft a Phaseblade on an Anvil using 20 Meteorite Bars and 10 Gemstones. Thus far, this is the only item in the game known to use gemstones in its crafting recipe.

The beam of the Phaseblade comes in a variety of colors, based on which gemstones were used in its crafting:
 * 10 Amethysts - Purple
 * 10 Topazes - Yellow
 * 10 Sapphires - Blue
 * 10 Emeralds - Green
 * 10 Rubies - Red
 * 10 Diamonds - White

Trivia

 * Phaseblades appear to be based on the Lightsaber from the Star Wars franchise. They even goes so far as to include the humming sound effect and the emitted light when swung.

Starfury
A rare Magical Sword that comes from Floating Islands. It does 8 direct damage, but releases a flurry of falling stars upon being swung. Three stars fly from the top corner furthest from the mouse cursor, and intersect at the cursors location. Each star deals 9 damage upon striking an enemy. Swinging the sword requires 11 mana and should you not have the required amount you will be unable to swing the sword at all, effectively rendering it useless.

Uses
The nature of this weapon is better suited for use outside, away from pits or chasms, as landscape blocks the stars from falling. The stars can be used to attack enemies outside or above from safety, or multiple enemies at once by hovering the cursor over their general location.

Additionally, this weapon is useful while spelunking as it will light cave surroundings slightly, possibly revealing nearby caves.