- Rescued hostages will sometimes say 'I knew you would come. Thank you.' in a very sincere voice, which makes a nice change from shrieking clones and burbling corporate cyborgs. Especially heartwarming as the Alert missions sometimes label the Rescue missions as "Abducted Civilian" or "Detained Diplomat Located". Maybe the Tenno aren't as monstrous as they seem.
- Evacuating a mission invaded by the Grustrag Three results in the Lotus saying 'The mission was aborted, but you are safe, and that means we won today.' Well, unless she's just worried about losing a valuable resource. Hard to tell really, it's that sort of game. If the players manage to defeat them, she scolds them for disobeying her - and putting themselves in danger. At the end of the mission, she says she is just happy they're all safe. The concern in her voice as she tells the players to run away is equal parts Heartwarming and utter Nightmare Fuel because what could possibly scare the Lotus?
- If you get captured by the G3 but your team stays to help you instead of getting out of there (when the one that captured you gets killed, you are freed from the cage), many thankful messages ensue.
- The updated prologue missions make the Lotus' motherly concern for the Tenno even more clear - Vor even outright says he's trying to 'steal [the Tenno] from their mother's [Lotus] embrace'. Indeed, she cares deeply for them, which is further supported by the Natah quest in an almost tear-jerking fashion: The Lotus is a Sentient agent sent through the barrier to carry out a mission, the last stage of which was to destroy the Tenno. Rendered sterile by the transition but wanting children of her own, she instead defied her orders and sent the Tenno into "the second dream", adopting them as her own. Far beyond merely being a Mother to Her Tenno, she literally sees the Tenno as her children. You may doubt her intention, but do not question that the Lotus loves you.
- Putting yourself in danger to save a downed teammate can easily be this in the right situation, or the flip side of this, seeing someone running to save you. In public matches, with people from all walks of life being able to play, people tend to Kill Steal a lot and run through objectives as quickly as possible. These people have probably no reason to help you as it will just slow them down, but that clearly doesn't matter to them as going in full force is more important to them than just breezing through the mission.
- Since Update 14 was released, the Tenno have been able to create domesticated Kubrows (dog-like creatures), take care of them as they grow up, and show them affection to keep their spirits up before bringing them on missions, including petting and scratching them. It really shows there's more to the Tenno than just being deadly space ninjas that kill everything in their path without a second thought; they actually have a soft side.
- While Ordis expresses distaste at the thought of the mess the Kubrows would make throughout the Howl of the Kubrow quest, he starts to warm up to them significantly - not that he would ever say so. In the end, he asks you make sure to take care of them, a pretty big request considering any mess it makes is essentially pissing all over the inside of his body.
- A meta example- in the wee hours of the morning of June 18, 2014, the devs posted a video of what to expect in the update coming out later that day- an update that had been delayed many weeks by that point, much to many player's annoyance. The general reaction to said video? Concern that the devs looked extremely overworked in the video, and a petition that they all should get some sleep and save working on the update for next week.
- In the updated prologue, the Lotus pulling out all of the stops to make sure you get off Earth alive. "I can't lose another one" indeed.
- Update 15 brings us Syndicates, smaller organizations separate from Grineer or Corpus with their own goals and agenda. Some Syndicates' aims may be quite heart-warming, for example:
- Steel Meridian, led by a Grineer defector, wants to protect small human colonies that are unable to stand for themselves. It's pretty inspiring to see a Grineer, of all people, totally casting off the whole genetic-superiority thing in favor of a firm and unrelenting creed to protect the innocent (especially since, being a clone, the Steel Meridian leader could be suffering from the hereditary psychosis and degeneration). Reaching a high enough rank actually leads to her commenting "I was wrong about you. You're a hero to these people. And to me."
- The Perrin Sequence, a group of Corpus merchants who, instead of profiting off the conflict, use their trade to restore order and bring prosperity to the system.
- New Loka, whose goal is to restore planet Earth and the human race from their current degraded state.
- Minor NPC activities in Relay can make you feel a bit fuzzy when you look at them.
- In the Steel Meridian syndicate room, there is a former Grineer soldier who is working but occasionally glances at a potted plant. Eventually he goes straight to the greenery and pets a leaf with a small smile. It's heartwarming to know that the Grineer can care deeply for plant life, especially after the Cicero Crisis.
- In the Perrin Sequence syndicate room, one of their supporters seems to be reprogramming a MOA without a shred of emotion... until he pets it on the "head". Then the robot begins to act as an adorable puppy.
- Ordis declaring that he is first and foremost the Operator's Cephalon during The New Strange quest, and by doing so, choosing to give up the opportunity of being a Warden for Cephalon Simaris' Data Sanctuary. Why? Because Simaris had endangered the Operator without a single ounce of concern, whereas Ordis wanted to keep his Operator safe.
Ordis: "I am Ordis, Ship Cephalon. I serve the Operator. I make new memories."
- Update 17, which contained a major overhaul of the movement system, came with this message◊ from Digital Extremes.
- The last moments of The Second Dream quest in Update 18 feature The Lotus herself arriving to save your Tenno - who, by the looks of it, is no older than 15 even if they have lived in stasis for centuries - from the Stalker, comforting them and asking them to stay strong. Even with a network of soldiers spanning the system, and knowing she could be followed by assassins, she still came in person to rescue you.
Lotus: My child. So beautiful to behold.
- The battle right before The Second Dream's finale is rather ambiguous, but it's heartwarming either way: after Stalker severs the link between Operator and Warframe, shoves the War sword in the 'frame's chest for good measure, and starts choking the life out of the child, your 'frame sits back up and tears War in half with the last of its strength, defeating Hunhow and forcing Stalker to flee. Some think that the Lotus herself controlled your 'frame, others think the 'frame itself is self-aware, but either way it's touching to think they gave their all to save you.
- Margulis, an Orokin researcher, went against the law to try curing the Zariman Ten-Zero children of their Void rampancy, even if it ends up getting her executed. Made even more heartwarming by the Lotus saying things only Teshin or Margulis would know during the War Within due to all records of the Zariman children being erased, which confirms that Margulis underwent Transference, and some of her essence remains in the Lotus. She is literally watching over you from a better place. It makes certain interactions heartwarming in hindsight, like the Halloween event culminating in essentially an adopted mother comforting her child after a nightmare.
- The history of Inaros. The Orokin kidnapped children from primitive Phobosnote colonists. Inaros was pissed at this, and slaughtered the Orokin (possibly at the same time the rest of the Tenno were doing much the same). He appointed himself as king of the Sand People, not as a tyrant but as their benevolent Protector, and they were all too happy to worship him in return. According to the legend, he defended them for years. One day the Infested came, but Inaros didn't defend them this time - presumably he was caught up in the whole "The Lotus sent all the Tenno to cryosleep" thing. That is, until the last possible moment, when Inaros, against all odds and the Lotus' wishes, arrived and tore into the horde, saving the last few families and banishing the last traces of the Infested from the moon for centuries. Inaros's shattered Warframe was found in the desert later, and the surviving Sand People gave him the most proper of burials they could in gratitude. As the player is learning this, they're also learning that the narrator is Baro Ki'Teer's mother. The Grineer killed his parents, and he's repressed the memories to the point that he loathes Phobos and the dead Sand People. That is, until he hears the voice of his mother. At first he begs for the voice to stop, but two missions later he's begging the voice to keep talking. Baro is torn up about Inaros not coming to his rescue no matter how much he prayed. At the end of the quest, he tells the player that he understands why Inaros didn't come to save his mother, but that he's confident that now, Inaros will come to save many others.
- The entire Silver Grove quest is just one moment of heartwarming after another. It starts with Amaryn, leader of the New Loka, begging you to save a shrine in a forest on Earth by brewing an apothic that will awaken its defences. Upon reaching the Shrine, the Tenno discover a consciousness within the trees, the blueprint for another apothic and the logs of an Orokin Archimedian. Further investigation and another trip to the shrine with the new Apothic reveals that the consciousness within the trees is the Orokin Archimedian, Silvana - a botanist who was conscripted into building warframes, but came to despise her creations. Fleeing back to Earth, she used her accumulated knowledge to begin the regrowth of Earth's forests, and transfer her consciousness inside them. This revelation horrifies Amaryn, who orders the Tenno to let the grove burn. The Tenno attempt to save the grove anyway, at which point Silvana gives Amaryn a massive telling-off for her bigotry, reminding her that they both desired the restoration of Earth. With the Tenno out of time, Silvana prepares for death, but Amaryn has a massive change of heart, rushing to Earth with as many of her devotees as she can gather. Silvana speaks of a similar time when the Orokin attempted to destroy her, but she was saved by the sudden return of Titania, her most despised creation, who died defending her. Amaryn swears that by the strength of the Tenno, Titania will fly again, and promises to turn New Loka away from its path of bigotry.
- Oct. 17, 2016, marked the first Nuptia, a Warframe wedding,, ministered by Lotus' voice actress, Rebecca Ford, complete with an in-game Lotus! It's a combination of cute, sweet, and even funny moments (involving a connection err- I mean, Tyl Regor and his goons crashing the party), but it further cements that real love can form anywhere. Even between mass-slaying space ninjas.
- When Teshin is not under control of the Twin Queens, it's clear that he will do anything in his power to help the Tenno. Especially in The War Within quest. In particular, when the Operator returns to the Queens' throne room, Teshin is surprised. He did not count on you coming back, and he did not have any other plan - meaning, when he helped you escape, he was ready to leave himself to face the wrath of the Queens, with no way to resist, evade or deny them, effectively sacrificing himself just so you could get out. And he did it without hesitating.
Teshin: Tenno, no! After everything you've endured to escape, why did you come back?
The Operator: I came back for you.
- The letter you receive from Teshin after The War Within is finished can also be rather touching, as it gives a little insight into what's on his mind, the burden he has to carry, and his appreciation for you after you made this burden a little bit easier.
- During The Glast Gambit quest, we get to see that the Perrin Sequence's leader, Ergo Glast, is probably the most sincerely compassionate character in the game. His concern over the lives of kidnapped colonists is clearly genuine, and the distances he is willing to go to save their lives, up to and including betting and losing his whole fortune over the life of one child show that his words about putting lives of people over the profit is not an empty sound. And even if you disagree with him the final point of the quest, you can't deny that the respect with which he treats the people of Mycona and their ways is nothing but admirable.
- The Tennobaum Event. From Dec. 14, 2016, to Jan. 4, 2017, DE counted how many presents Tenno gave each other, and with each milestone the Tenno reached they increased their donation to the Boys and Girls Club of London; while also giving players an in-game bonus. In the first few days alone over 50,000 presents were given to fellow Tenno, and some Tenno gave more than 1,000 presents away by themselves. The forums also made a thread called the "Tennobaum Wishlist Exchange" where players can enter a small wishlist of what they would like to get from their fellow Tenno, and as it turned out, many wishes were fulfilled.
- The Plains of Eidolon preview at Tennocon shows a group of children in a colony playing with masks and fake weapons, one with a Volt mask and the others with Grineer masks, and one can't help go 'Awww' at the scene. It also shows that the Tenno are revered like superheroes by the colonies they protect, and not at all feared like some would assume.
- For added heartwarming value, only one of the children is pretending to be a Tenno. The rest are pretending to be Grineer, and having a lot of fun 'dying' theatrically from the Tenno's attack. Not a lot of children are good enough sports to make-believe they're another hero's disposable enemies. Those are some good kids.