Warframe’s Heart of Deimos: The Infested Update That Still Bites in 2026

In 2026, Warframe is a beast with more systems than a space station has bolts, so it is worth remembering the update that taught Digital Extremes to stop chasing fireworks and start tightening the engine. Heart of Deimos arrived on August 25, 2020, and by 2026 it is no longer the newest toy in the box. It is the cranky infested elder that still shapes how players think about open worlds, modular gear, and the glorious horror of the Helminth. The update rolled up its sleeves and poked at Warframe’s core: a third open-world, a new planet, customizable mechs, a community-built Warframe, ability swapping, a new player quest, and a pile of lore. That is no small ask for one update. ...

A Moon With a Bad Attitude

Deimos is not a holiday resort. It is an Infested hellscape, and the moon stretches its infested limbs across a third open-world... Players complete bounties, gather resources, and raise standing with the Entrati, the local faction. Bosses roam during certain timeframes and drop valuable rewards; unlike Eidolon hunts, there is always a boss to hunt no matter the time of day. In 2026, that always-available rhythm feels like a quiet quality-of-life win, even if the moon itself looks like it needs a very aggressive spa day.

The Old Keys Get Shown the Door

Deimos is not just an open-world; it is a new planet on the Star Chart. That arrival retired the Orokin Derelict Key system. The old tileset is reused for more traditional missions such as Exterminate and Capture, and players farming Corrupted Mods or the Nekros Warframe no longer need to craft Derelict Keys. Derelict runs also gained matchmaking. The old key system was politely shown the door, and honestly, few players wept.

Mechs That Clear Their Mechanical Throats

The locals created custom mechs called Necramechs. After completing The Second Dream quest, players can summon them at will, and they are fully modular. Digital Extremes did not reveal every dial and bolt, but the safe bet was at least three swappable part types with unique stats, much like Zaws and K-Drives. Necramechs also stomp into the Plains of Eidolon and the Orb Vallis. A Necramech clears its mechanical throat, looks at an Infested crowd, and asks whether anyone ordered a very large problem.

Xaku: The Warframe Made of Broken Pieces

Xaku is a community-made Warframe, a Frankenstein of broken Warframes combined into one. Its kit has a little of everything: weapons can be imbued with Void damage (though not for damaging Eidolon shields), lasers stun targets, and the frame can detonate its body for massive damage while its remaining skeleton gets a speed boost. In 2026, Xaku remains a strange little Swiss Army knife with a haunted closet. That is a mouthful, but so is explaining Warframe to a newcomer.

The Helminth Room Becomes a Resource Sink

The Infested room in the Orbiter is no longer just for popping Infested Cysts. It was overhauled into an endgame system and resource sink for veterans. A giant maw in the room wants to eat hundreds of thousands of Nano Spores and Alloy Plating. Feeding Helminth enhances its power and lets it imbue Warframes with strange new powers. The room is less a closet and more a very hungry roommate.

Ability Swapping and the Chrysalis

The Helminth Chrysalis system lets players use the infested chair as an operating table to replace one ability from any Warframe with an ability from another. It sounds overpowered and game-breaking, and it is, but with caveats. Every Warframe has a curated ability that can be learned and used elsewhere; ultimates and kit-defining signature abilities are off the menu. Learning a Warframe’s power requires sacrificing a non-Prime version to Helminth, consuming the frame whole over 24 hours. If digesting a Warframe sounds too gruesome, players can obtain new powers from Helminth itself. By 2026, the system is still a build-crafter’s playground and a lore-friendly nightmare.

New Players and New Lore

New players were not left in the dust. The introductory quest was replaced entirely, giving newcomers a taste of Warframe’s insane lore and easing them into dozens of intricate systems. The update also expanded the universe with Entrati lore, the origin of the Infested, and lore entries similar to the Vitruvian entries from The Sacrifice. Deimos likely contains the most lore-rich content of any Warframe open-world up to that point. In 2026, onboarding remains a beast, but Heart of Deimos was an early attempt to make it less feral.

The Heart of Deimos update was not trying to be Railjack-sized fireworks. It built on core aspects of Warframe, and by 2026 that approach looks smarter than ever. It gave players a moon, a mech, a broken Warframe, a hungry chair, and a reason to care about the Infested. The update did not just add content; it taught Warframe how to chew its own systems...