Ever felt like a TV show ending just…didn’t? Like there *had* to be more, a secret episode lurking somewhere? I get it. Recently, as I was diving back into Mass Effect 3, I saw some crazy theories floating around about a “true ending” to Stranger Things‘ final season. This whole situation reminded me of something similar.
I’ve been writing about games and entertainment for over a decade, and I’ve seen firsthand how passionate fanbases can be. So, let’s explore why fans sometimes cling to these “secret ending” ideas, and how it all echoes back to the Mass Effect 3 controversy.
Why Do Fans Believe in Alternate Endings? The Stranger Things Phenomenon
The Stranger Things finale definitely stirred things up. Some viewers felt unsatisfied, leading to theories about a hidden ninth episode. This “Conformity Gate” (now “Documentary Theory”) gained traction, fueled by clues supposedly hidden in post-release content and the upcoming behind-the-scenes documentary, One Last Adventure. People were looking for signs that the ending wasn’t what it seemed. But is this unusual?
Not really. When a series ends in a way that doesn’t quite land, dedicated fans often search for deeper meaning, hoping the perceived flaws are intentional, pointing to something more. They want to believe there’s a “real” ending coming that will redeem everything.

What Other Shows Have Inspired Fan Theories About Secret Endings?
Stranger Things isn’t alone. The BBC’s Sherlock finale in 2017 had a similar effect. The show’s love of mysteries led fans to believe new episodes were coming. Even the troubled release of Justice League in 2017 fueled a campaign for the “Snyder Cut.” In that instance, director Zack Snyder hinted for years at its existence, so it wasn’t solely based on fandom theorizing.
How Mass Effect 3’s Ending Sparked a Similar Fan Response
Let’s rewind to 2012, when Mass Effect 3 launched. The game’s ending was… divisive, to put it mildly. The final act felt rushed, and the ending choices, despite the series’ emphasis on player choice, felt similar. Fans were frustrated, and many hoped it was all a setup for something more. I remember the forums exploding with theories.
Some fans sent cupcakes to Bioware as a sign of their displeasure (a quaint gesture compared to today’s fandom clashes). Amidst the noise, one theory stood out: the Indoctrination Theory.

What Was the Mass Effect Indoctrination Theory?
The Indoctrination Theory suggested that Commander Shepard, the player character, had been slowly brainwashed by the Reapers since the first game. The confusing ending of Mass Effect 3, according to the theory, was a hallucination caused by this indoctrination. Fans believed the Reapers were tricking Shepard, preventing him from destroying them.
The theory spread rapidly. Fans analyzed the entire trilogy, finding “evidence” to support it. They hoped Bioware would release a “true” ending to address all the issues.
Did BioWare Ever Respond to the Mass Effect 3 Ending Controversy?
Bioware remained silent for three months. Then, they announced the “Extended Cut,” a free DLC that added new cutscenes and altered existing ones, clarifying the ending. While it wasn’t the complete overhaul some fans wanted, it addressed some of the criticisms and explained the developers’ intentions.
A year later, Bioware released the Citadel DLC, a more lighthearted farewell to the series’ characters. While the Indoctrination Theory has since been dismissed by Bioware, it still has followers to this day.

What is the Lasting Impact of Mass Effect 3’s Ending Controversy?
Bioware, in a way, gave Mass Effect fans what they wanted. They responded to the backlash and altered the ending, even if it wasn’t a complete rewrite. This might have set a precedent: with enough fan pressure, a disappointing finale can be made more palatable. Whether this is good for the relationship between creators and fans is still up for debate.
In some ways, part of the reason we still see situations like the one with Stranger Things is that—whether it saw it as such or otherwise—Bioware gave Mass Effect fans what they wanted, willing into existence things that weren’t originally planned, even if it wasn’t the form those initial fan theories presumed it would be. It helped lay the groundwork that, with enough speculation and enough pressure by audiences, a disagreeable finale could be made somewhat more palatable, even if not wholly redone. While in the end it may have turned out better for the Mass Effect saga—even if, by and large, we’re still really waiting to see the future of the series beyond Mass Effect 3‘s ending—whether it’s turned out better for a fandom’s relationship with the people who created the works they adore is still, as this week shows, a work in progress.
These kinds of fan theories reflect a deep connection to the material, but where should the line be drawn? Do you think fan theories sometimes go too far, or are they a harmless expression of passion? Let me know your thoughts in the comments below!