In 2026, the Origin System is a far stranger place than it was when Heart of Deimos first arrived. Yet the third open-world expansion for Warframe, launched in August 2020, still pulses like a diseased heart beneath the surface of Deimos. The moon of Mars, long hidden in shadow, is the ancestral source of the Infested: an ancient bioweapon that escaped the Orokin and spread across the system like a plague with no cure. For a third-person looter shooter that had already taken players to the plains of Eidolon and the frozen valleys of Orb Vallis, Deimos offered something else entirely—a living, breathing nightmare that refused to die.

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Deimos is extra Infested because it is the Infested's homeworld. The landscape is a seething mass of tendrils, pulsating membranes, and grotesque growths. Horrific monsters roam the Cambion Drift. Ancient mechanized war machines called Necramechs stalk the ruins, their pilots long since deceased after the war was lost. Every rock, every spore, every distant screech tells a story of Orokin arrogance and biological horror. The Tenno do not visit Deimos to save it; they visit to survive it, to loot it, and to learn from the few locals who have adapted to their new Infested way of life.

Those locals are the Entrati, a fractured Orokin-era family whose drama unfolds across the moon. They need the Tenno for many things: bounties, Isolation Vaults, Necramech parts, and the strange resources that only Deimos can provide. In 2026, the Cambion Drift remains a crucial destination for players seeking Helminth upgrades, Necramechs, and Entrati standing. The moon is no longer a new frontier, but it is still a foundational one.

Xaku: The Community-Designed Void Child

No expansion would be complete without a new Warframe. Xaku was the second community-designed Warframe after Nova, and the community proved once again that it knows how to build a monster. Xaku's kit looks like it has a little bit of everything: damage, crowd control, speed, and even a bit of area of effect. All the right ingredients for a great new Warframe. In 2026, Xaku has evolved from a curiosity into a beloved void-touched frame, especially after Xaku Prime joined the roster. Its ability to steal enemy weapons, suspend foes, and shed its own skin for a devastating spectral form keeps it relevant in both casual and high-level play.

Feature What Heart of Deimos Introduced Why It Still Matters in 2026
Deimos open world Cambion Drift, Infested landscape, Entrati family Core hub for Helminth, Necramech, and lore
Xaku Community-designed Warframe with damage, CC, speed, AoE Prime variant and unique void kit remain popular
Helminth system Warframe ability swapping Cornerstone of build customization
Necramechs Pilotable ancient war machines Required for certain content and beloved by veterans
New player revamp Revamped intro and tutorial Better onboarding for a complex game

Deimos also introduced a new system that let Tenno swap Warframe abilities. At the time, the full list of which abilities could be swapped was not done, but it is now. Digital Extremes warned that certain abilities would be buffed or nerfed with the update, and players were encouraged to do some violent exploration while looking around Deimos. That system, the Helminth, became one of Warframe's most important customization pillars. It turned the orbiter's infested room into a laboratory of horrible, wonderful choices. By 2026, no serious build discussion is complete without mentioning Helminth.

New Warframe players found that the introduction and opening tutorial section of the game had been completely revamped. Heart of Deimos hoped to address one of Warframe's few complaints: that being a somewhat overwhelming onboarding experience. The update delivered a new trailer for that too. In the years since, Digital Extremes has continued to refine the new player journey, but Deimos was a major step toward making the Origin System less impenetrable.

New weapons, a new Hydroid cosmetic pack, and new Supporter Packs also arrived with Heart of Deimos. The Hydroid cosmetic pack gave the pirate-themed Warframe a fresh look, while the weapons added more ways to carve through Infested hordes. Hydroid himself would later receive a full rework in 2023, but the Deimos cosmetic pack remains a nostalgic favorite for players who remember the expansion's launch.

By 2026, Heart of Deimos is no longer the newest open world. It has been followed by more ambitious updates, deeper Entrati lore, and new systems that pushed Warframe in unexpected directions. Yet Deimos endures. The Necramechs still stomp through the drift. The Infested still whisper. The Entrati still bicker. And Xaku still proves that when the Warframe community designs a Warframe, the result can be as strange and beautiful as the moon that birthed it.

Tomorrow has long since become yesterday, but the Heart of Deimos still beats. For veterans, it is a reminder of how far the Origin System has come. For new Tenno in 2026, it is a grotesque, glorious rite of passage—one that begins with a dead moon and ends with a pilotable war machine, a stolen ability, and a Warframe built by the community itself.