While there are a lot of random weapons available in the wasteland of Fallout 4, there's also a wide collection of unique weapons, which are specially named guns and melee weapons, where only one of their kind exists in the entire game. These unique weapons can be some of the best in the whole game.

If you want the greatest weapons possible, you may not be able to find them all in the base game. Some of the best unique weapons in Fallout 4 come from the Nuka World and Far Harbor DLCs. You'll have to dish out some more cash, but take it from someone who's played Far Harbor; the DLCs are worth every extra penny.

10 Big Boy

Mini Nuke Launcher

Would you like to further irradiate the wasteland? Look no further than Big Boy, your personal mini nuke launcher. Big Boy is a variant of the common Fat Man heavy weapon. However, Big Boy is able to fire an additional nuke with every shot, further spreading chaos and death from the skies.

If you want to add this huge weapon to your arsenal and replace your regular old Fat Mans, you'll need to head to Diamond City, that symbol of civilization in ruin. When you get there, visit Arturo Rodriguez, the owner of Commonwealth Weaponry. While there, you can purchase Big Boy, but be warned, it is one of the most expensive weapons in the game, at a cost of around 14,000 caps with no perks.

9 Final Judgment

Maxson's Prize Weapon

Final Judgment is a special variety of the Gatling laser with an increased fire rate and reload. If you make sure to add the charging barrels mod to this weapon, you'll have one of the most powerful weapons around. If you ignore the DLCs, Final Judgment would be in the running for the greatest weapon in Fallout 4 with its deadly energy damage.

If you want this powerful laser weapon, the Brotherhood of Steel in Fallout 4 and still claim Final Judgment, as you'll have to face off against Elder Maxson, its original owner, to obtain it. You can fight him whether you side with the Minutemen, the Railroad, or the Institute. If you want this gun, you'll have to kill him.

8 Hub's Alien Blaster

Nuka-World Sci-fi

Aliens have played a part in the wider Fallout lore for some time now, so it's not too surprising that you can end up with an alien blaster in Fallout 4. Hub's Alien Blaster is the best alien blaster around, although it can be a drain on resources unless you have the fusion cell mod. Otherwise, you have to use alien blaster rounds, which are harder to find than fusion cells.

Hub's Alien Blaster is a reward for the Nuka-World quest "Trip to the Stars", given by Dara Hubbell. If you have the Nuka-World DLC, this is a fairly simple weapon to obtain. Its special effect increases the damage of critical shots and refills your critical meter faster. So long as you get Science! level 4 and obtain the fusion cell mod, Hub's Alien Blaster should serve as a fun and strong energy weapon.

7 Righteous Authority

Brotherhood Of Steel Reward

Righteous Authority exists on the opposite spectrum of Final Judgment. If you want this weapon, you'll have to befriend Paladin Danse in Fallout 4 and complete the Brotherhood of Steel quest "Call to Arms". You can obtain both weapons in one playthrough by completing "Call to Arms" before moving on to another faction and destroying the Brotherhood. This may be the play if you're a fan of energy weapons, considering both are exceptional.

Righteous Authority has the same special effect as Hub's Alien Blaster. With both guns, critical shots do more damage and your critical meter fills faster. However, Righteous Authority is much easier to obtain. It doesn't involve purchasing a DLC, nor do you have to commit to improving your Science! level to use the weapon to its max potential. Just point and shoot.

6 Atom's Judgment

From The Children Of Atom To You

Atom's Judgment is an almost comical looking sledgehammer focused on pounding rads straight into your enemies' skulls. Alongside the basic melee damage of super sledges and other melee weapons, Atom's Judgment deals an extra 100 Radiation Damage, allowing you to smite your enemies from two angles. Just be aware of its slow speed, or you may find yourself in a corner.

Interested in duking it out with radioactive melee attacks? ESO on YouTube explains just what you'll need to do in the Far Harbor DLC to obtain Atom's Judgment. You'll need to work with the Children of Atom and progress to "The Heretic" quest. In this quest, you'll have to deal with Gwyneth, a former member of the Children of Atom. After dealing with her and completing the quest, you'll get Atom's Judgment.

5 Kiloton Radium Rifle

More Gifts From Atom

The Kiloton Radium Rifle is a special variety of radium rifle, which does a mixture of regular and Radiation Damage. On top of this mixed damage, the gun's special effect makes the bullets explode upon impact with 15 point area effect damage. If you're interested in dealing a mixture of different damage, the Kiloton Radium Rifle may be the gun for you.

This is another Fallout 4 Far Harbor DLC exclusive weapon unlocked via a positive relationship with the Children of Atom. The Kiloton Radium Rifle is a gift from Brother Kane, bestowed after ing the Children of Atom. This faction is a good pick for fans of radiation weapons, as it also rewards Atom's Judgment discussed earlier.

4 Spray N' Pray

Explosive Ammo Without The DLC

Spray N' Pray isn't the flashiest or most stunning gun out there, but it packs a shockingly good punch. It is very similar to the Kiloton Radium Rifle, sharing the same explosive ammo ability. Spray N' Pray is a submachine gun variant with a better magazine size and fire rate than Kiloton Radium Rifle, and you don't need a DLC to get it.

In order to get this submachine gun, you'll have to find Cricket, one of many merchants who travel the wasteland. It takes a bit of chance to come across her, but she often appears by Bunker Hill, Vault 81, Diamond City, and Warwick Homestead. She may also appear at your settlement if you have a trade caravan post.

3 The Last Minute

Purchase From The Minutemen

The Last Minute is an excellent Gauss rifle that comes equipped with a wide range of mods straight out of purchase. You start with a shielded barrel, capacitor boosting coil, long night vision scope, and a compensator, making it outshine every other rifle of its class. It deals 50% extra damage to limbs for a bigger chance of incapacitating your enemies.

You'll have to grow closer to Fallout 4 if you want to wield The Last Minute. The gun will not be available until you work through some of their quest lines, specifically the quests "Taking Independence" and "Old Guns". Once you complete those quests and unlock the Castle, you can buy The Last Minute from Ronnie Shaw. It is the best weapon in the base game.

2 The Problem Solver

Spraypaint Rifle

The Problem Solver brings a splash of violent color to the wasteland. This handmade rifle increases the damage of every consecutive hit on the same target, truly solving your problems once and for all. If you've got the right perks to wield a weapon like this, you should have a lot of fun with your colorful gun.

The Problem Solver is another Nuka-World special that requires a lot of specific steps to unlock. While working on the quest "An Ambitious Plan", you need to a Charisma check with Mason. Meanwhile, during the conversation, you also have to pick aggressive responses found on the right side of your dialogue options. Only if you fulfill both requirements will Mason give you The Problem Solver.

1 Aeternus

Infinite Death

If there is any reason for you to get the Nuka-World DLC in Fallout 4, it is for this weapon alone. Aeternus wipes the floor with other weapons thanks to its unlimited ammo capacity. However, this is not entirely accurate. Because Aeternus is powered by a fusion core, the effect actually makes it so you have infinite ammo, allowing you to constantly fire down your enemies.

This Gatling laser is a special reward for the repeatable quest "Amoral Combat", in which you defend the Gauntlet after completing "The Grand Tour". There are six named combatants in this quest, but you'll have to keep accepting it until you fight the rogue knight. The rogue knight will drop Aeternus upon defeat, giving you the best unique weapon in Fallout 4.

Videos: Camelworks/YouTube, ESO/YouTube