Summary
- Epic Games released Fortnite update v31.20 with Marvel-themed content, including a new limited-time mode.
- The update introduces the Day of Doom mode, where players can join either Doctor Doom's henchmen or The Avengers.
- The update also includes an Iron Man outfit in the item shop, available until October 6.
Epic Games released a brand-new Fortnite update on September 17, bringing the popular battle royale title to version 31.20 with a plethora of new Marvel-themed content. The update can be downloaded and installed across all supported platforms, with the official patch notes revealing details on a new Fortnite limited-time mode, Iron Man outfit, and much more.
After teasing its release on Twitter earlier in the month, Fortnite has released the new Day of Doom limited-time mode. This 32-player large team mode pits two teams of 16 players against each other, with one side working under Doctor Doom as his henchman and the other side working with The Avengers. While Doom's Henchman must collect six Arcane Artifacts and then eliminate all of the players on the opposing team, The Avengers' objective is to simply eliminate Doom's Henchman until they run out of respawns. There's no word on how long this mode will be around for, so players are urged to jump in while they can.
Fortnite’s Portrayal of Doctor Doom is Something an Eventual Fantastic Four Game Can Learn From
Fortnite's interpretation of Doctor Doom is particularly ruthless, and it should be a blueprint for any future Fantastic Four games.
With the latest Fortnite update now available on PlayStation, Xbox, PC, Nintendo Switch, and mobile devices, Epic Games has released the full change log for patch v31.20, revealing the first details on the new limited-time mode, Iron Man outfit, and other changes included in the update. Alongside this massive patch, LEGO Fortnite has also received a substantial update, adding a new location known as Lost Isles, plenty of new weapons, and more.
While the new Day of Doom limited-time mode is sure to be the standout addition of the latest update, there's also a new Iron Man outfit now available in the Fortnite item shop. The outfit, which will set players back 2,500 V-Bucks for the entire bundle, is Iron Man's MK 45 variant, which Marvel fans will recognize from 2015's Avengers: Age of Ultron. For players eager to get their hands on the outfit, it's available in the game's item shop from September 17 until October 6.
There's plenty of Marvel-themed content for players to check out in v31.20, but it looks like Epic Games is also gearing up for another massive Fortnitemares event as data miners have already uncovered evidence of a potential Fortnite x Saw crossover. There's no word on when the next Fortnitemares event will be released, but previous years indicate a mid-October kick-off. For now, however, players will need to make the most of the new Day of Doom limited-time mode before it disappears.
Fortnite Update v31.20 Patch Notes
Doom is building his power and his new armor is almost complete — but the fight is far from over. Help Marvel’s Avengers bring an end to Doom’s conquest in Battle Royale v31.20 with the Day of Doom mode, inspired by Endgame from Chapter 1 Season 8!
Fight for the cause of the Avengers and take down Doom’s forces using items like the new Iron Man’s Combat Kit and unvaulted Stark Industries Energy Rifle. Or, as one of Doom’s henchmen, race to collect fragments of Pandora’s Box scattered across the Island and wield the formidable power of Victor Von Doom himself as Doom’s Chosen! The Day of Doom mode will be in Discover until October 4 at 9 AM ET.
Over in the shop, a reinforcement has arrived. Drop by to check out the Iron Man Mk 45 Outfit and more! Get all your v31.20 news, including an aim assist update, below.
The Day of Doom Has Begun!
In Day of Doom, up to 32 players will join the ultimate battle between good and evil. Players are divided into two teams: Doom’s Henchmen and Allies of the Avengers (“Avengers” for short). Both teams have Health and Shield that regenerate outside of combat! Both are also immune to fall damage and have infinite ammo for all weapons.
Doom’s Henchmen: Become Doom's Chosen
If you’re on the side of Doom’s Henchmen, your aim is to collect Arcane Artifacts. Once you’ve collected all six, your adversaries — the Avengers — will no longer be able to respawn. Eliminate every last hero in play and you’ll emerge victorious!
The first Doom henchman to collect an artifact will become Doom’s Chosen, a near-unstoppable force donning Doom’s armor that can unleash devastating abilities like the Scorch Beam and Mystical Gigabomb. If Doom’s Chosen is defeated, another henchman after a short time will be randomly chosen to wield this immense power.
Latverian Warrior: Doom’s Henchmen Loadout
Doom above all! As one of Doom’s henchmen, you’ll load into the match with superpowered weaponry like Doctor Doom’s Arcane Gauntlets to take on the Avengers. Plus, as your villainous team collects Arcane Artifacts, your arsenal will get some upgrades — including access to the Monarch Pistol and Sovereign Shotgun!
Here’s everything included in the Doom’s Henchmen loadout:
- Doctor Doom’s Arcane Gauntlets
- Combat Assault Rifle (Mythic-rarity)
- Monarch Pistol (only after the first artifact has been acquired; Mythic-rarity)
- Sovereign Shotgun (only after the second artifact has been acquired; Mythic-rarity)
- Shockwave Grenade (unlimited use, with a cooldown)
The Day of Doom mode will be in Discover until October 4 at 9 AM ET.
The Avengers: The Island's Mightiest Heroes
Taking the side of the Island’s Mightiest Heroes, your goal is to take down Doom’s forces before they collect all six Arcane Artifacts. Doom’s Henchmen have a large number of respawns altogether — you’ll achieve victory once you and your fellow Avengers have depleted all their reinforcements. Including Doom’s Chosen.
Lock and loadout with superb gear! Every respawn, heroes in Day of Doom will have one of four randomly assigned loadouts, each based on a different Avenger:
The First Avenger: Captain America Loadout
Fight for liberty with Captain America’s Shield! Made of a Vibranium and an experimental steel alloy, it can protect you from almost any attack that comes your way. But this shield is for far more than just defense. Hurl it at your enemies and watch it bounce between them, or slam it into your foes mid-sprint to send them reeling.
The full Captain America Loadout includes:
- Captain America’s Shield
- Striker Burst Assault Rifle (Legendary-rarity)
- Super Slap Splashes (5x)
- Shield Bubble Jr. (3x)
- Dual Micro SMGs
A One-Man Weapons Depot: War Machine Loadout
Become a walking, flying arsenal. Rain down destruction with War Machine’s Arsenal, unleash supporting fire with the shoulder-mounted Auto Turret, and dominate the battlefield from above with the Hover Jets. Need even more firepower? Barrage your foes with the unvaulted Stark Industries Energy Rifle!
The full War Machine loadout includes:
- War Machine’s Arsenal
- War Machine’s Auto Turret
- War Machine’s Hover Jets
- Stark Industries Energy Rifle (Legendary-rarity)
- Chug Splashes (4x)
Genius Inventor and Billionaire: Iron Man Loadout
You won’t need to avenge the Island, because with this loadout, you can protect it! Stay on target with the new Iron Man’s Combat Kit, which automatically locks onto nearby enemies so you can hit them with energy blasts. If Doom’s forces are enduring, unleash the Combat Kit’s ultimate “Unibeam” attack!
This loadout also comes with the new Iron Man’s Flight Kit, so you can take to the skies at high speed. When you have the Combat Kit in your inventory simultaneously, try using the Unibeam mid-air! Here’s everything in the Iron Man loadout:
- Iron Man’s Combat Kit
- Iron Man’s Flight Kit
- Stark Industries Energy Rifle (Legendary-rarity)
- Hyper SMG (Legendary-rarity)
- Chug Splashes (4x)
Princess of Wakanda: Black Panther Loadout
Wakanda forever! With Shuri’s Black Panther Claws, build kinetic energy as you execute claw-to-claw combos. Doom’s forces trying to run away? Chase them with your superhuman sprint speed to build up even more kinetic energy!
Once Shuri’s claws are finally “supercharged,” release the kinetic energy stored inside for a temporary damage boost and short-term unlimited Energy regen. The claws will be supercharged when you first get the loadout so you can get a taste of this power.
Here’s everything in the Black Panther Loadout:
- Shuri’s Black Panther Claws
- Striker Assault Rifle (Legendary-rarity)
- Ranger Pistol (Legendary-rarity)
- Rift-To-Gos (2x)
- Chug Splashes (4x)
Stark Mobile Armories: Look to the Sky, Avenger!
Enough of Day of Doom, what’s that up above? Stark Mobile Armories are falling from the sky and straight into Battle Royale and Zero Build! Each airborne armory comes in one of two designs, Iron Man or War Machine — which should give you a hint as to what you can find inside!
Once landed, you can head inside these armories and load yourself up with futuristic firepower by interacting with the Iron Man Armor Stand, which will dispense either Iron Man’s Combat Kit and Flight Kit, or War Machine’s Arsenal, Auto Turret, and Hover Jets. Each Iron Man Armor Stand can only be interacted with once, so make like Quicksilver and get there fast!
Like the new Iron Man items, the unvaulted Stark Industries Energy Rifle can also be found in normal BR and Zero Build matches. You can find these in Chests or Stark Industries Supply Drones! Note: The Stark Industries Energy Rifle now uses light bullets.
From the Battle of Sokovia to the Shop: Iron Man Mk 45
Stark Industries has touched down in the Shop too! Look state-of-the-art with new items in the Iron Man Set:
- Iron Man Mk 45 Outfit: The Avengers' benefactor and creator of a gamma powered Battle Bus.
- Energy Collector Back Bling (included with the Iron Man Mk 45 Outfit): Designed to take in and redistribute energy through Iron Man’s suit.
- Mark 45 Energy Blades Pickaxe: Extensions of Iron Man’s nanotech armor, used for close quarters.
- Arc Reaction Wrap: Give your weapons Stark Industries sophistication.
- Mark 45 Bass: Tony Stark's proprietary bass design from his own collection.
Advanced weaponry, made entirely from bricks. The Iron Man Mk 45 Outfit has a LEGO® Style to use in LEGO experiences! The Outfit (+ Back Bling), Pickaxe, Wrap, and Bass are available in the Shop now.
More in v31.20: Human-Like Aim Assist on Controller
Excited to grab your controller and start playing? On all platforms (console, PC, mobile), v31.20 introduces human-like aim assist for controller players, which models human reaction time while trying to better match how unassisted keyboard + mouse players track moving targets. Human-like aim assist allows for more balanced tuning for controller players of all skill levels — we'll be closely monitoring its impact so that we can tune it just right!
V31.20 Tournament Notes
- The Iron Man's Combat Kit, Iron Man's Flight Kit, Stark Mobile Armory, and Iron Man Armor Stand are not included in tournaments.
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OpenCritic Reviews
- Top Critic Avg: 84 /100 Critics Rec: 94%
- Released
- September 26, 2017
- ESRB
- T for Teen - Diverse Content: Discretion Advised, In-Game Purchases, Users Interact
- Developer(s)
- Epic Games
- Publisher(s)
- Epic Games







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- Engine
- Unreal Engine 5
- Multiplayer
- Online Multiplayer, Online Co-Op
- Cross-Platform Play
- All platforms (except iOS/Mac)
- Cross Save
- Via Epic Account
- Number of Players
- 1-4 players (online)
- Platform(s)
- PlayStation 5, PlayStation 4, Xbox Series X, Xbox Series S, Xbox One, Nintendo Switch 2, Nintendo Switch, PC, Android, iOS
- X|S Optimized
- YES
- Local Co-Op Support
- 1-4 players (certain modes)