Warhammer 40,000: Gladius - Onslaught

steam logo
82% | Very Positive
steam logo
Wishlist
Deploy 8 brand-new units with the Onslaught Pack on the battlefields of Gladius Prime. The new units will bring a new offensive layer and will unlock new strategic options for commanders.
£4.24
£5.89
-28%
This deal ends in:
06D:14H:11M:01S
This product activates in United KingdomGBflag
Payments:
paypal
visa
mastercard
googlepay
american-express
steam logo
This title is redeemed via Steam. Your key will require activation on Steam. Find out more
DLC
Downloadable Content. This content requires Warhammer 40,000: Gladius - Relics of War on the same platform in order to play

Special Offers

5
%
off
5% off your next order 
Get a coupon via email with purchase. Exclusions apply

About Warhammer 40,000: Gladius - Onslaught

About this DLC

Deploy 8 brand-new units with the Onslaught Pack on the battlefields of Gladius Prime. 

The new units will bring a new offensive layer and will unlock new strategic options for commanders. 

Canoptek Reanimator - Necrons 

Support walker unit that regenerates friendly Necrons units.

Like its Canoptek peers, the looming Reanimator’s core role is not destruction but maintenance of a Necron Tomb World. Its remit is to repair damage caused during combat, which it does with streams of nano-scarabs, rebuilding nearby Necrons while they still stand.

Mandrake - Drukhari 

Light skirmish infantry that causes fear and teleports to disrupt enemy formations.

Feared even by their Drukhari kin, the origins of the unnatural Mandrakes of Aelindrach are lost in time. They appear like the void incarnate, with their midnight skin, bone-white hair and freezing presence. In battle, they literally slip between shadows, emerging only to plunge their sickle blades into the living or sear their flesh with the cold-fire known as Baleblasts.

Vyper - Craftworld Aeldari 

Fast reconnaissance skimmer unit with a multipurpose missile launcher.

Following a Saim-Hann craftworld design, the Vyper sits somewhere between a jetbike and weapons platform. Despite its lightweight build and speed, these two-Aeldari vehicles can carry a variety of heavy weapons - though on Gladius Prime, they are known for using only versatile missile launchers.

Attilan Rough Rider - Astra Militarum 

Fast melee cavalry unit.

Horsemen may seem primitive in a galaxy filled with millennia-old horrors, but the Rough Riders of Attila long ago proved their worth to the Astra Militarum. The hunting lances they carry are their concession to modern tactics, with their melta-tipped variants even capable of punching through power armour.

The Rough Riders can use frag or melta lances in-game.

Sicarian Ruststalker - Adeptus Mechanicus 

Elite melee infantry which excels in prolonged battles.

The Sicarians are warrior-clades repurposed from the remains of grievously wounded Skitarii. Unlike their Infiltrator kin, Ruststalkers act as assassins, their transonic blades and claws fused permanently into their bionic appendages and pallid, puckered flesh.

Rubric Marine - Chaos Space Marines 

Elite infernal infantry unit

These ornate suits of power armour are filled only with dust - the remnants of the proud Space Marines whose spirits are sealed within and animate them still.

Squighog Boy - Orks 

Heavy cavalry unit that excels at taking down large prey.

Riding four-legged Squigs into battle, these Beast Snagga boyz are nomadic Orks, predominantly from the traditionalist Snakebites Clan. Their goal is always to take down the biggest enemy on the battlefield - be that Tyranid, Necron or Ogryn.

Norn Emissary - Tyranids

Elite Synapse monstrous creature bred to annihilate strategic enemy targets.

Each Norn Emissary is spawned for a specific purpose, be it predating on a strategically gifted commander, abducting a knowledgeable prey-being at the behest of its Norn Queen, or some other ineffable task. Melding terrifying psionic potential with speed, agility and awful strength, the Norn Emissary is more than equal to its mission

DLC Details

Platform:
steam
Release Date:
May 22, 2025
Developer:
Black Lab Games
Publisher:
Slitherine Ltd.
Supported Languages:
English
Franchises:
Warhammer 40000 Battlesector
Warhammer

Warhammer 40000
Genres:
Strategy
4X

Turn-Based Strategy

Wargame

Grand Strategy
Themes:
Sci-fi
War

Tactical

Replay Value

Great Soundtrack

Military
Play Styles:
Turn-Based
Multiplayer

Hex Grid

Turn-Based Tactics

Singleplayer

Co-op

Turn-Based Combat
Features:
PvP
Online PvP

SharedSplit Screen PvP

SharedSplit Screen

Downloadable Content

Steam Achievements

Partial Controller Support

Steam Cloud

Remote Play Together

Singleplayer

Multiplayer

Product Requirements

Minimum:

  • OS: 64-bit Windows 10
  • Processor: i5-4460 (or equivalent)
  • Memory: 4 GB RAM
  • Graphics: Geforce GTX 750 (2GB VRAM)
  • DirectX: Version 11
  • Sound Card: DirectX Compatible Sound Card

Recommended:

  • OS: 64-bit Windows 10
  • Processor: i5-6400 (or equivalent)
  • Memory: 8 GB RAM
  • Graphics: Geforce GTX 950 (2GB VRAM)
  • DirectX: Version 11
  • Sound Card: DirectX Compatible Sound Card

Warhammer 40,000: Gladius - Onslaught Statistics

Statistics Powered By

Play Time Statistics

0%
10%
20%
30%
40%
50%

Time Played

< 1 Hour
18.18%
~1 Hour
9.09%
~2 Hours
0%
~4 Hours
0%
~8 Hours
9.09%
~12 Hours
0%
~20 Hours
45.45%
~40 Hours
18.18%
~60 Hours
0%
>= 80 Hours
0%
Achievement Hunter?
0% of players played this game for >= 80 Hours!

Difficulty Statistics

Difficulty Rating

Simple
0%
Easy
0%
Just Right
68.75%
Tough
25%
Unforgiving
6.25%
Relax & enjoy! 68.75%  of players consider this game to be Just Right

Completion Statistics

0%
10%
20%
30%
40%

Play Behaviour

Tried It
33.33%
Played It
27.78%
Halfway
0%
Beat It
16.67%
Conquered It
22.22%
Completionist! 22.22%  of players have Conquered It
Be the first to review this product
Help other users by describing what you love about Warhammer 40,000: Gladius - Onslaught

Frequently Asked Questions

Yes, you will need Warhammer 40,000: Gladius - Relics of War on the same platform to play Warhammer 40,000: Gladius - Onslaught.
Available DLCs for Warhammer 40,000: Gladius - Relics of War include Warhammer 40,000 Gladius Drukhari, Warhammer 40,000 Gladius Demolition Pack, Warhammer 40,000 Gladius Adepta Sororitas, and Warhammer 40,000 Gladius Tyranids
Somewhere in the middle. 69% of GameFAQs users said the difficulty is Just Right. 31% of GameFAQs users said Warhammer 40,000: Gladius - Onslaught is Tough or Unforgiving.
Yes, Warhammer 40,000: Gladius - Onslaught is not fully Steam Deck Verified but the publisher says it is "Playable" on Steam Deck. Valve’s testing indicates that Warhammer 40,000: Gladius - Relics of War is Playable on Steam Deck. This game is functional on Steam Deck, but might require extra effort to interact with or configure.
  • All functionality is accessible when using the default controller configuration
  • In-game interface text is legible on Steam Deck
  • This game's default graphics configuration performs well on Steam Deck
  • This game sometimes shows mouse, keyboard, or non-Steam-Deck controller icons
  • Entering some text requires manually invoking the on-screen keyboard
Minimum:
  • OS: 64-bit Windows 10
  • Processor: i5-4460 (or equivalent)
  • Memory: 4 GB RAM
  • Graphics: Geforce GTX 750 (2GB VRAM)
  • DirectX: Version 11
  • Sound Card: DirectX Compatible Sound Card
Recommended:
  • OS: 64-bit Windows 10
  • Processor: i5-6400 (or equivalent)
  • Memory: 8 GB RAM
  • Graphics: Geforce GTX 950 (2GB VRAM)
  • DirectX: Version 11
  • Sound Card: DirectX Compatible Sound Card
The average playtime for GameFAQs users is 17 hours. 64% of users played Warhammer 40,000: Gladius - Onslaught for over 12 hours.
Warhammer 40,000: Gladius - Onslaught was released on May 22, 2025
Warhammer 40,000: Gladius - Onslaught is published by Slitherine Ltd.
Warhammer 40,000: Gladius - Onslaught was developed by Black Lab Games
Fanatical users tagged Warhammer 40,000: Gladius - Onslaught as Strategy, 4X, Turn-Based Strategy, and Wargame
Fanatical users tagged Warhammer 40,000: Gladius - Onslaught as Sci-fi, War, Tactical, and Replay Value
Yes. Fanatical users tagged Warhammer 40,000: Gladius - Onslaught as having Multiplayer
Yes. Fanatical users tagged Warhammer 40,000: Gladius - Onslaught as having Singleplayer
Yes. Fanatical users tagged Warhammer 40,000: Gladius - Onslaught as having Co-op

Related products

Warhammer 40,000: Battlesector © Games Workshop Limited 2021. Warhammer 40,000: Battlesector, GW, Games Workshop, Space Marine, 40K, Warhammer, Warhammer 40,000, 40,000, the 'Aquila' Double-headed Eagle logo, and all associated logos, illustrations, image, names, creatures, races, vehicles, locations, weapons, characters, and the distinctive likeness thereof, are either ® or TM, and/or © Games Workshop Limited, variably registered around the world, and used under license. Published by Slitherine Ltd. Developed by Black Lab Game Tech Pty Ltd. All rights reserved to their respective owners.

Less than 1% of orders are flagged for manual authorization. This process can take up to one working day, but orders are normally reviewed within a few hours.