Chains of Harrow: Update 21.3.0 + Hydroid Revisited + Hotfixes!

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[DE]Danielle    14,827
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Chains of Harrow: Update 21.3.0 + Hydroid Revisited


Hydroid Revisited

The sea has a revamped fear creeping in the depth, and his name is Hydroid.

With Hydroid Prime emerging to the surface soon, the team took another glance at Hydroids powers and what we could do in order to achieve ability synergy. Hydroid now brings barrages, surges, puddles, and tentacles into a deadly oceanic horror. 

Feedback appreciated here: 

General Hydroid Changes:

  • Hydroid’s base Shield and Armor has received a buff! 
    • Shield is now 375 from 345. 
    • Armor is now 200 from 65.

Tempest Barrage:

  • Tempest Barrage can be cast while in Undertow and will now hit enemies submerged in Undertow.
  • Tempest Barrage can now be charged for longer Duration (more explosions) and more Damage for more Energy.

Tidal Surge:

  • Tidal Surge can be used to move around without cancelling Undertow (note that Tidal Surge speed - and hence distance - is halved when used in Undertow).
  • Tidal Surge will now pull enemies along for the ride.
  • Tidal Surge can be interrupted at any point by casting Undertow to go into your puddle, sinking enemies being pulled along.


  • Hydroid can pull enemies into Undertow by aiming and clicking on them.
  • Undertow can be cast while in air.
  • Jump and roll will break Hydroid out of Undertow.
  • Hydroid can now move while in Undertow at the expense of Energy.
  • Submerged enemies in Undertow receive Damage Per Second, increasing every second they are submerged.
  • Enemies that die will be released from Undertow instead of dragging their dead bodies along for the ride.

Tentacle Swarm:

  • Hold onto your ships, Tentacle Swarm has received a new look straight from the depths of the sea! Can you summon the Kraken?
  • Tentacle Swarm can be charged to get more tentacles over a larger area for more Energy.
  • Hydroid tentacles will now seek out nearby enemies and attempt to slam on top of them rather than just always flailing randomly and hoping they hit something.
  • Tentacle Swarm will protrude from Hydroid’s Undertow if active when cast. 

New Weapons:


Lenz - Bolts from this Corpus bow deliver a one-two punch of an icy pulse, followed by a conventional explosion. Excess ammo picked up for other weapons will be converted into charges for the Lenz. Warning, safety-protocols do not exist on this prototype.


Jat Kusar - Overwhelm hostiles with this jet-powered sickle and razor-chain weapon. Charged strikes ignite an explosive blast at range.

The winning Melee entry from ‘The Best Defense’ contest is here! Concepted and submitted by fellow Tenno SilverBones, this Grineer inspired Plasma Kusurigama is the embodiment of murderous, Grineer ingenuity.

Original Artwork:




Channel your inner crimson warrior with the new Guandao Collection!


Slice through your enemies with the Guandao, a towering polearm, or take them out from a distance with the Zakti pistol and its lethal toxicity. Adding the Mozi Syandana will ensure your enemies only see a flash of red before their last moments, if they see anything at all…

The Guandao Collection includes:

Guandao Polearm - Harvest the enemy with this towering polearm.
Zakti Pistol - Fires razor-sharp darts that anchor themselves in their target before erupting in a plume of toxic gas.
Mozi Syandana - Windswept ribbons of crimson evoke the war-kites of ancient Earth.

Visit the Market today to claim this Collection or each new item individually!

The Guandao Polearm and Zakti Pistol can also be crafted in the Tenno Research Lab in your Dojo!

Console Specific Additions

  • The in-game Market now grants you the ability to redeem Digital Extremes Promo Codes from within the game! At the bottom right of the in-game Market you will see a new option to 'Redeem a Code'. *Please note that this does not work for codes generated by platforms outside of Digital Extremes and the code must be inputted exactly as they are (i.e. case sensitive & dashes).


  • Added a functional Arsenal in Captura via the pause menu. You can also access this menu Arsenal in the Simulacrum.
  • You can now select 'Friendly Fire', 'Warframe Invincibility', 'Pause AI', and 'Kill Enemies' in the Simulacrum enemy selector screen. For Multiplayer Simulacrum, the Host will be able to select these options.
  • You can now select 'Pause AI' and 'Kill Enemies' in Captura via the enemy selector screen. For Multiplayer Captura, the Host will be able to select these options.


  • Harrow's Covenant now applies to Companions.
  • Added weekly Defection leaderboards (scored the same as the Pacifism Defect).
  • Added Affinity rewards for each Defection squad evacuated.
  • Integrated localization updates.
  • Chat will automatically rearrange and switch to the Squad tab when loading into a mission.
  • Optimized mission load times and reduced memory usage dramatically.
  • Made several small performance improvements for the remastered Earth tileset (more to come).
  • The Stalker can no longer apply Nyx's passive to disarm enemies hit with Absorb due to being so powerful it crashed your game. Stalker pls.
  • Removed the Chat Relay Message of the Day (MoTD) when in Iron Wake.
  • Operators are now affected by the Smeeta Kavat Mischief/Charm buffs.
  • Improved and widened the Reactant marker visibility range.
  • Improved Kavor Defectors colliding with players and each other.
  • Improved enemies for targeting Atlas' Tectonic Bulwarks so they shouldn't get stuck (at least as often).
  • Improved the Smeeta Kavat Mischief buff for Operators. Relevant buffs on the Warframes will always be transferred to the Operator and vice versa.
  • Mastery Rank of each Dojo Research item is now shown in Clan Research selection screen.
  • Harrow's smoke FX during his Thurible cast can be seen by other players now.
  • Made optimizations to Chat to improve performance when users join/leave the current channel.
  • Companion Kavats will now get knocked back and dissolve (instead of just vanishing) when they sadly die because you either left them or didn’t make it in time.
  • Battalyst and Conculyst Sentient weapons will now disappear after a minute as opposed to lingering on the ground indefinitely.
  • Improved texture-streaming responsiveness.
  • Improved Channeling FX on Nova Prime and Oberon Prime.
  • Optimized render performance in cases where dynamic lights were destroyed.

Simulacrum & Captura Changes:

  • Enemies will no longer automatically be killed by returning to the Arsenal area, and Host will not automatically kill enemies by using the enemy selector console.
  • Enemies can be killed by the Host by selecting the 'Kill Enemies' button in the enemy selector console.
  • The 'Pause AI' button will now dynamically pause and unpause any currently existing enemies.

Opticor Changes & Fixes:

  • Opticor beam now has a radius (thicker more cylinder shaped beam) that will allow you to hit more enemies with a single beam.
  • Increased the Opticor AoE damage radius from 3 meters to 5 meters.
  • Critical Chance and Critical Damage Multiplier now apply to the AoE.
  • Opticor now benefits from Critical Chance / Critical Chance Multiplier Mods (the existing beam always did but the radial AoE damage did not).
  • Reduced Ammo capacity to 200.
  • Fixed being unable to destroy Nullifier bubbles with the Opticor.
  • Fixed being unable to kill enemies inside a Nullifier bubble or Eximus Snow Globe with the Opticor. This also fixes being unable to hit Lephantis or Sargas Ruk at times.

Riven Changes & Fixes:

  • Snipetron Rivens are now an option for Rifle Rivens!
  • Fixed missing Riven for Broken War.
  • Fixed missing Riven for Dex Dakra .
  • Fixed missing Sheev and Dual Heat Sword Rivens.
  • Fixed Dark Split Sword Rivens having no effect when equipped.

Conclave Changes & Fixes:

  • Increased ammo capacity of Pyrana in Conclave.
  • Fixed a script error when casting Inaros’ Devour in Conclave.
  • Fixed Octavia’s Amp ability applying buffs to players on the opposite team in Conclave.
  • Fixed having the same Primary weapon equipped for both Cooperative and Conclave resulting in a visual error on Conclave weapon Mods.
  • Fixed Oberon’s Reckoning not lifting enemies in Conclave.
  • Fixed Oberon’s Reckoning not being terminated if Oberon was killed during the cast in Conclave.


  • Fixed the Synthesis Scanner not scanning Simaris targets.
  • Fixed Defection losing track of a Kavor when two squads extracted together and both the 4th and 5th defector arrived at the extraction point within half a second of each other.
  • Fixed an endless loading screen when trying to load into Galleon survival for a Clem weekly mission.
  • Fixed chat text not appearing while in gameplay in some cases.
  • Fixed Toxin Resistance's description (added % for clarity).
  • Fixed script error in Harrow's Covenant.
  • Fixed rare cases of invites not being received when in a Relay.
  • Fixed not being able to use the Codex Scanner to scan Ayatan Statues and other pickups.
  • Fixed Vay Hek not spawning 3 times before his final battle and not entering his Terra Frame Phase when playing his boss fight.
  • Fixed the water not draining for Clients after defeating Vay Hek on his Earth boss fight.
  • Fixed items earned in mission not saving after dying as the Operator in the last stage of the Chains of Harrow quest.
  • Fixed not being able to deploy Extractors on Earth.
  • Fixed the Nukor creating a ton of FX if it kills something while it's been paused by Harrow's Condemn ability.
  • Fixed being able to invite players to Iron Wake before they have progressed in Chains of Harrow.
  • Fixed an issue that made you use the Melee charge animation instead of a normal attack animation when quickly pressing Melee after a slide attack in Dual-Wield mode.
  • Fixed casting and deactivating Excalibur’s Exalted Blade, Wukong’s Primal Fury, or Valkyr’s Hysteria while in Dual-Wield mode resulting in the UI stating the name of your Pistol and ability used.
  • Fixed the Palatine Hammer Skin not applying correctly to the Sibear.
  • Fixed some clipping issues with the TennoCon 2017 Syandana.
  • Fixed incorrect projectile sounds with the Zarr and Knell.
  • Fixed no results displaying after Transmuting in the Relay.
  • Fixed Ratals being unable to correctly roll down slopes.
  • Fixed being unable to spawn Eximus units in the Simulacrum.
  • Fixed some cases of NPCs falling through the floor after entering cover.
  • Fixed Vor’s Prize tutorial hints clipping through the environment.
  • Fixed descriptions for Ammo Restores to display the correct values.
  • Fixed the minimap appearing displaced in the Relay if your HUD scale is over 100.
  • Fixed the Sands of Inaros quest description having the wrong tomb location text.
  • Fixed the ‘Offline Mod Bench’ appearing as a placeholder text.
  • Fixed placeholder text appearing when attempting to select the ‘Filter’ button in Chat.
  • Fixed Mag’s Magnetized Discharge Augment not triggering when using the "use selected ability" key.
  • Fixed being able to spawn inside of a wall in the Mastery Rank 24 test.
  • Fixed an invisible Corpus doorframe in the Shipyard tileset.
  • Fixed enemies not playing their injury animation sometimes.
  • Fixed a script error when entering Iron Wake.
  • Fixed a script error when casting Harrow’s Thurible.
  • Fixed a script error when casting Inaros’ Sandstorm.
  • Fixed a script error when casting Nyx’s Psychic Bolts.
  • Fixed a script error when casting Valkyr’s Rip Line.
  • Fixed a script error when casting Ivara’s Artemis Bow.
  • Fixed a script error when casting Oberon’s Renewal.
  • Fixed a script error when casting Volt’s Shock.
  • Fixed a script error when casting Rhino’s Charge.
  • Fixed a script error when casting Inaros’ Scarab Swarm.
  • Fixed a script error when throwing the Ferrox.
  • Fixed an issue where Clients downed while using Excalibur’s Exalted Blade, Wukong’s Primal Fury, or Valkyr’s Hysteria would be unable to switch weapons when revived.
  • Fixed players suffering from low FPS resulting in slow casting times for Nidus’ Virulence.
  • Fixed low FPS affecting Mesa’s Peacemaker damage per second.
  • Fixed a couple cases where abilities could become permanently blocked in Archwing.
  • Fixed Syandanas being huge for Clients joining in progress in Archwing.
  • Fixed elevators in the Grineer Sealab tileset not displaying context action correctly.
  • Fixed Chat not immediately switching to the Squad channel when in the loading screen.
  • Fixed the TennoCon 2017 Syandana bunching up when equipped on Mesa.
  • Fixed Operator not continuing to sprint after jumping if the player was and is still holding the sprint key before they jumped.
  • Fixed many weapons not being visible (bows in particular).
  • Fixed Kuva Braids randomly summoning Guardian Eximis.
  • Fixed becoming permanently invisible if any invisible ability affecting you ends while you are aiming with a scanner.
  • Fixes towards Chat sometimes spontaneously not working.
  • Fixed being able to use Atlas' Tectonics Bulwark to prevent Defectors from bulwalking through doorways. The Bulwark wall now detects Defectors and the wall will collapse.
  • Fixed a case where Atlas’ Tectonic Bulwark walls can have weird targeting from enemies, causing them to either not see the wall or attack it in incorrect ways (eg. shooting it when they can melee it).
  • Fixed being stuck in a continuous Emote state upon selecting a looping Emote like the Ki’Teer Presence or Meditating Emote.
  • Fixed the Scourge not being affected by Heavy Calibers accuracy reduction.
  • Fixed UI displaying 227 total missions playable when there are actually only 226.
  • Fixed several issues with in-world markers for Hosts and Clients.
  • Fixed certain weapons shrinking when applying skins on them.
  • Fixed seeing duplicate FX for Harrow’s Covenant as Client.
  • Fixed a missing blocking volume that was allowing players to go out of bounds in the Earth Forest tileset.
  • Fixed Nyx’s Mind Control FX lingering on Ramparts.
  • Fixed the Hyena Sigil FX not fading enough near the edges.
  • Fixed missing muzzle flash on the Tigris Prime.
  • Fixed buff indicator for the Zenith disc lifespan not being removed if you recall the disc manually.
  • Fixed Relic refinement sort by name being inconsistent, and list issue creating a visual copy of a Relic in the grid.
  • Fixed Clients setting Exterminate markers on enemies who don't count towards mission progress.
  • Fixes towards Equinox’s cloth getting stuck between legs.
  • Fixed Equinox's mesh being reset to the mixed form when previewing Helmets/Skins/etc in the Arsenal.
  • Fixed Warframes in Landing Craft/Relay getting stuck in a weird animation state after exiting the Arsenal quickly with only a Melee weapon equipped.
  • Fixed hitches when scrolling through Sigils in the Arsenal.
  • Fixes towards the Grax Mirage skin to better match the original Steam Workshop images.
  • Fixed Operator Void Beam not using Energy properly in the Simulacrum.
  • Fixed Clients being able to use Transference while wall clinging in order to float.
  • Fixed using the Arsenal as Client causing permanent invincibility in the Simulacrum.
  • Fixed a crash that could occur when starting a Dojo duel.
  • Fixed the Host experiencing a significant hitch when the Client finishes loading into a Dojo duel.
  • Fixed two Earth Forest tilesets with broken connections to portals which caused issues with objectives and marker pathing.
  • Fixes no enemies sometimes spawning in Earth Forest Exterminate until near the extraction room.
  • Fixed some positioning of weapon trails on sparring weapons (Obex, Kogake, Hirudo, etc).
  • Fixed black and untextured wreckage in Corpus Archwing tilesets.
  • Fixed the Javlok playing a weird animation when quickly cycling through ‘Randomized’ color options.
  • Fixed the Scourge damaging or killing players when picking it up while paused in Limbo’s Rift before it hits the ground.
  • Fixed the Sari Syandana covering the pause menu when playing Solo. The wings will now close a lot faster when pausing.
  • Fixed the Scourge and Cycron Status lasting longer for the Host.
  • Possible fix for Companion Pets being insta-killed in some rare cases (without going into bleedout).
  • Fixed a localized typo of Chroma in his Helmet description text.
  • Fixed attempting to launch Solo missions while in a squad causing the Star Chart UI to become unresponsive for the Host and causing Client to load into a black screen.
  • Fixed a crash that could occur if many enemies were spawned at once in the Simulacrum.
  • Fixed being able to re-run an Alert/Sortie/Syndicate mission again right after completing it. It’s also worth noting that rewards would not be given out twice in this situation. Rewording for clarity: Fixed a super rare edge-case where the Sortie/Alert/Syndicate mission would appear as incomplete, even though you just completed it.
  • Fixed having no objective in Sabotage/Invasions missions.
  • Fixed not being able to complete Asteroid Mobile Defense missions.
  • Fixed the Cerata having 20% Status Chance when it should be 30%.
  • Fixed Excalibur getting stuck in Slash Dash (and thus being invulnerable) if it was cast with no targets and the player took damage right after casting.
  • Fixed Companion Pets insta-dying in Kuva Siphon missions (for real this time).
  • Fixed Sheev, Snipetron and Dex Dakra displaying an incorrect Riven Disposition.
  • Fixed Primary Riven Mods with Fire Rate buffs applying to Ivara's Artemis Bow.
  • Fixed regular Primary Mods with Fire Rate buffs applying 3x to Ivara's Artemis Bow instead of 2x.
  • Fixed not being able to fire until you recast Mesa’s Peacemaker if you entered bleedout when Peacemaker is active.
  • Fixed Nidus' Parasitic Link on allies being terminated early if Harrow uses Covenant.
  • Fixed missing rear counter Finishers for Ancients/Moas/Kubrows/Chargers for the Blind Justice Nikana Stance.
  • Fixed Viral Status Effects being able to straight up kill you or put you into bleedout.
  • Fixed Eximus units having drops in the Simulacrum.
  • Fixed Sortie bosses not shutting up after switching World State Window tabs (or cancelling with ESC or pressing WSW minimize button).
  • Fixed being able to walk through Defense Targets after a Host migration has occurred.
  • Fixed Clients switching between Warframes sometimes appearing to have Equinox's skirt (sorry for ruining the fun).
  • Fixed Mastery Sigils not displaying properly on some Warframes.
  • Fixed black meshes appearing in the Lua Stealth Challenge room.
  • Fixed cases of excessive spot-loading when transitioning from the Mod Station to Arsenal.
  • Fixed Equinox/Nidus appearance being reset in the Arsenal when equipping a new Helmet/Skins/etc.
  • Fixed a frame or two of animation popping and motion blur on Nidus' flaps when previewing or switching Skins/Helmets/etc in the Arsenal.
  • Fixed incorrect Energy color when using Core Vent on the Elytron.
  • Fixed some Stance Mods not appearing as ‘New’.
  • Fixed the Heavy Caliber Mod showing Accuracy stat twice.
  • Fixed some Mods having offset description text.
  • Fixed a soft lock when attempting to craft Specters.
  • Fixed not receiving Syndicate Standing after completing a Syndicate mission.
  • Fixed Mesa’s Peacemaker not acquiring new targets if it fails to find a target within a short period of time after firing.
  • Fixed enemies affected by Nyx’s Chaos, Loki’s Radial Disarm, Naramon Mind Spike as well as Radiation procs not taking increased damage from faction damage Mods.
  • Fixed being able to get infected by a cyst in Captura and the Simulacrum.
  • Fixed an issue that was causing all Sentient arms to no longer be destructible.
  • Fixed Syndicate Secondaries losing their unique skin in Dual-Wield and looking like the normal version of the weapon.
  • Fixed certain weapons firing "out of the Rift" when Limbo's Stasis is disabled.
  • Fixed the Mastery Sigil appearing unranked on Titania and her Skins.
  • More fixes towards Energy color issues when using Core Vent on the Elytron.
  • Fixed Armor attachments appearing dark in the Star Chart when you zoom out of a region.


August 17 Hotfix #1

  • Hydroid’s base Energy has been increased from 150 to 188 (at Rank 30).
  • Tentacle Swarm’s tentacles now move at a slower rate when enemies are captured in their grasp to improve issues with hard to shoot flailing enemies.
  • Improved Tentacle Swarm when cast on walls/odd surfaces.
  • Improved the performance of Tentacle Swarm.
  • Undertow damage per second is now a % of the target's max Health.
  • Fixed Hydroid’s Tentacle Swarm Kraken appearing lower for Clients.
  • Fixed Undertow’s Energy drain when moving applying to elevators.
  • Fixed dying and Reviving resetting the UI Reactant icons for other squad members.

*Please note that there are some Hydroid changes/fixes not included in this Hotfix that are currently live on PC. Those changes are unable to be Hotfixed for console and will come in a near Update. 

August 22nd Hotfix #2

  • Increased Tenora magazine size from 80 to 150.
  • Increased Tenora magazine size from 50 to 70 in Conclave. 
  • Fixed a Rell manifestation falling through the world causing a progression stopper in the Chains of Harrow quest.
  • Fixed Hydroid’s Tempest Barrage cancelling out when cast with Undertow.
Edited by [DE]Danielle
HF #2
  • Upvote 5
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22 minutes ago, [DE]Danielle said:


I'm kinda confused right now. How big is this update? I'm having to download 20GB and that seem's like a lot just for an update.

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(PS4)HarryMuff    227
1 minute ago, (PS4)Vandorine said:

I'm kinda confused right now. How big is this update? I'm having to download 20GB and that seem's like a lot just for an update.

1.2Gb for me. 

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It's saying 20GB on my son's ps4 as well. I don't know what's going on. But with our internet that's a 99+ hr download. How do we fix this?

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9 minutes ago, (PS4)ozgurozacik said:

Is it just for me that it is 14 gigs? And it doesn't matter how much I cancel and restart it it is still 14 gigs Everytime

It's crazy. Lol I have no idea

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(PS4)Riko_113    459
30 minutes ago, (PS4)LeTueurDeChrono said:

We already have the new Hydroid just check his armor. It's now 200 (was 65 before).

We didn't have it as of 9pm last night when i was playing him on PS4, and it's not listed as being included in this patch lol. The wiki lists the current PC version, in case that's what you're looking at, not the consoles which update behind.

If they slipped it then, awesome! Otherwise....Shame! XD

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33 minutes ago, (PS4)ozgurozacik said:

Is it just for me that it is 14 gigs? And it doesn't matter how much I cancel and restart it it is still 14 gigs Everytime

It took a while for it to finally show up 1.2GB. It was 20GB for both my son and I but after two cancels for me and 5 for him it went to 1.2GB.


44 minutes ago, (PS4)pablo_sanchez10 said:

20 gigs for me as well. What's the problem?

It should be 1.2GB.

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(PS4)Magician_NG    5,288

Earlier than I expected (thought for sure it would be tomorrow), very cool.

Now I've got to remember to get the download started before I sit down for lunch.

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27 minutes ago, (PS4)Riko_113 said:

We didn't have it as of 9pm last night when i was playing him on PS4, and it's not listed as being included in this patch lol. The wiki lists the current PC version, in case that's what you're looking at, not the consoles which update behind.

If they slipped it then, awesome! Otherwise....Shame! XD

I was just saying that we DO have him in THIS update. Not that i checked the wiki. -_-

I tested his new abilities in today sortie. It's not just yet specified in the patch note tho.

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18 minutes ago, (PS4)HarryMuff said:

Confirmed, we have the Hydroid tweaks. I was just playing with him.


is it the stats or the whole set of power tweaks??

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(PS4)HarryMuff    227
2 minutes ago, (PS4)geomancer1980 said:

is it the stats or the whole set of power tweaks??


He has 200 armour and the abilities have changed. Not sure about the finer details, but it would be strange to have some and not the rest.

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4 minutes ago, (PS4)geomancer1980 said:

is it the stats or the whole set of power tweaks??

The whole set of power tweaks. 

In my opinion it doesn't change that much. It will still be ignored by most players. But maybe the prime will change that. It's a stationary frame so it won't be played except for defense missions. Or maybe for loot but i think Nekros and Ivara are better. 


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