Clear a hex, build a keep, become a research wizard
Half of Kingmaker is a game where you go on adventures and fight trolls, "and then you have Kingdom Management, where you do taxes," as Prototype00 jokingly puts it.
The endgame of D&D in its early editions was clearing a hex on the wilderness map, getting rid of all the monsters, and building a keep there. Maybe a stronghold or a wizard's tower. Then you slowly build up a domain and spend the rest of your days dealing with the problems of the local citizens.
Few ever made it to that endgame, but the dream remained part of the collective unconscious of longtime roleplayers:
Some day we will clear a hex and build a keep.
Kingmaker is about that dream, and kingdom management is how it simulates the day-to-day running of your land. You assign advisors to deal with events and opportunities as they crop up, and when they're free you dedicate them to long-term projects—making trade deals with neighbours, upgrading roads and infrastructure, training a military, and so on.
You can also assign your religious advisor (the high priest) and your arcane advisor (the magister) to research the curses you repeatedly stumble across in various quests and sidequests. There are a lot of them. A hunter has become a werewolf, a murder victim is doomed to return as a zombie, a dryad transformed into a big evil tree. Each curse requires weeks or even months of research to understand, during which the chosen advisor will be unavailable to deal with disasters or improve your kingdom, leaving the land in a weakened position.
"You're going to put your Kingdom underwater if you try to do this from the outset," Prototype00 says.
Standard advice was not to bother with most research, that it was one of Kingmaker's many "noob traps" for new players to fall into. "People were right in that you could safely ignore most of them—from the standpoint of a normal playthrough," says Alice. "Yet it turns out they're actually one of the main requirements for the romance."
There are 16 curses and to get the secret ending you need to have researched 13 of them, though it doesn't matter which 13, as discovered by a Russian player named FreeSergey. While the English-language Kingmaker community was struggling through bugged 100-hour playthroughs to figure it out, FreeSergey simply datamined the information. He even wrote a guide explaining not only how to get to the secret ending, but how to track variables in the player.json file to make sure you hadn't goofed along the way.
The thing is, he
wrote it in Russian.
"Even though it was out there, nobody had translated it," says Prototype00, "so if you wanted to know what it said, you had to machine translate it yourself." Which he did, sentence by sentence. "I gave it a once-over and minorly adjusted some sentences for readability and then posted it on Reddit. You can go through the
Reddit thread and compare it to the
Steam guide and you'll see some places where I left some hilariously ill-translated stuff in there. To the guide's and FreeSergey's credit, it's written in a clear and comprehensive fashion, so even with my many mistakes, the meaning he meant to convey shines through."
Knowledge (Endings) skill check passed
FreeSergey's datamining didn't just confirm the necessity of curse research. It also confirmed that you had to have specific conversations with end-of-chapter bosses, who are each under a curse of their own. You had to either talk to a kobold chief, which was only possible if you killed his ally the king of the trolls first and
then passed an Intimidate check, or talk to a barbarian king who was slowly being taken over by a cursed sword, which was only possible if you complete the quest within one of Kingmaker's many hidden time limits.
Manage that, and you then had to get a specific dialogue with an undead cyclops that only triggered if you passed a hidden skill check while talking to him.
"You would not even know if you failed unless you checked your log and scrolled all the way up to where those hidden checks would have happened after the fact," says Alice, who calls this "by far the hardest step."
Somehow there's more. As Redditor u/charlesatan noticed, you needed to bring a certain companion with you to a dungeon, then talk him into destroying an artifact you find there. The chain of events that sets off makes it possible to obtain a different artifact, a sword of thorns called the Briar, which becomes essential later. It's absurdly specific.
With all that in your pocket—the Briar, a knowledge of curses gained from research projects and triggering specific dialogues with bosses, and having said the right things while talking to Nyrissa—it's possible to make it to the secret ending. As long as you never tried to romance any other NPCs along the way or idly suggested abdicating your throne in one conversation with Nyrissa, which will lock you out completely.
Following FreeSergey's guide, Prototype00 got there on his first try. Having confirmed the guide's information was correct, he revised it with his own screenshots and corrected text from English dialogue choices in place of the machine-translated ones and put it on
Steam, where it's now helped hundreds of players.
I followed the guide on my own second playthrough, and made it to the hidden ending in a breezy 126 hours.
Toward Kingmaker's climax it's revealed that Nyrissa herself is the subject of a curse. In the distant past, a trickster demigod of the fey lands called the Lantern King stole her emotions and empathy, made the Briar out of them, and hid it from her. In the tabletop version of Kingmaker, the Briar is a thorny vorpal sword, a weapon players can use to defeat Nyrissa. Her death is described in the text as "an unfortunate beheading from a sword forged of her own capacity to love."
The videogame is more sympathetic, revealing that the Lantern King forced her to fill a magical cup called "the Apology" with grains of sand, each formed from a kingdom she destroys. Your kingdom will be the thousandth grain in this cup. If you choose to return the Briar to Nyrissa rather than chop off her head with it, you return her soul and empathy, making her realize what she's done.
That's not enough to free her, however. You have to combine that decision with your degree in Advanced Curse Knowledge from the University of Kingdom Management and Hidden Skill Checks to convince Nyrissa there's a way to turn the curse back on its creator. While the videogame version of Kingmaker does away with hexes on its map, it's still a game about clearing a hex and building a keep—only it's a "hex" in the other meaning of the word.
Following this branch to its conclusion makes an optional multi-stage final boss fight against the Lantern King mandatory, piling on yet another layer of difficulty. An absurd fairytale happy ending follows, but by god you have to earn it.
The thing is, like everything about Kingmaker, from the spider swarms of Fangberry Cave to the intricacies of the kingdom management system, its creators genuinely don't seem to realize how hard they made it to achieve. "We expected the secret ending to be rather easy to reach when you know where to look for it," Alexander Komzolov told me.
Rather easy, he says. I don't want to know what a harder version would have looked like.