Fire Emblem: Three Houses is a 2019 tactical role-playing video game developed by Intelligent Systems and Koei Tecmo's Kou Shibusawa and published by Nintendo for the Nintendo Switch. A collaboration between Intelligent Systems and Koei Tecmo, it is the sixteenth entry in the Fire Emblem series and the first for home consoles since Radiant Dawn, originally released in 2007.

Three Houses is set on the continent of Fódlan, divided between three ruling powers currently at peace. These nations are connected through the Garreg Mach Monastery, which houses a church and an officer's school for students from each nation. Taking the role of Byleth, a former mercenary with a mysterious past and the academy's newest professor, the player must choose a class to lead and guide their students through a series of battles and crucial decisions. The game maintains the turn-based tactical gameplay of the previous Fire Emblem titles, while incorporating social simulation and time management elements.

The game's production was challenging for Intelligent Systems, who attributed its success and timely release to Koei Tecmo, who had previously partnered with the company for Warriors. The staff wanted something entirely new for the franchise's debut on high-definition home consoles, birthing the school life mechanics and expansions to battle. Chinatsu Kurahana was the main character designer. The game's school system and a time skip later in the story took inspiration from the fourth installment, Genealogy of the Holy War.

Three Houses was released to critical acclaim. Critics praised the integration of the school system and battalion mechanics, narrative, characters, soundtrack, and replay value. Minor criticisms were directed at the game's easier difficulty compared to past installments as well as some visual and technical problems. As of December 2022, the game has sold 4.12 million copies worldwide, making it the single best-selling game in the franchise. The game would go on to win Best Strategy Game and the inaugural Player's Voice Award at The Game Awards 2019. A Warriors-style spin-off, Three Hopes, was released for the Nintendo Switch on June 24, 2022. Fortune's Weave, a mainline installment set in the same world as Three Houses, was released on September 17, 2026 for the Nintendo Switch 2.

Gameplay

Fire Emblem: Three Houses is a tactical role-playing game in which players control a player character whose gender and name are chosen at the beginning of the game. During the opening hours, the player character is asked to teach at the Garreg Mach Monastery, which acts as a hub for game activities. Choosing a particular house to teach impacts the narrative from that point on. The player's time is divided between story-based battles that advance the main narrative, and periods in Garreg Mach where they interact with students and staff members there. While the opening half of the game focuses on this school system, the story skips ahead five years and focuses more on battle, with the player being bound to the house they chose during the opening

During the periods between storyline battles, the player has a set number of days marked on a calendar, which can be used for a variety of activities from teaching classes and field exercises to planting seeds in the greenhouse and fishing in the pond. The player also has free time events, where they can socially interact with students and build up relationships with them. Building a relationship is done through Support actions, with actions and dialogue choices impacting a character's Support level. If the relationship is strong enough, this can lead to the two marrying after a story-based time skip event. By raising particular attributes through actions in battle and within the Monastery, the player can recruit students from other houses, alongside other characters. Each action during the academy section costs a set number of time points, with a limited number of time points available each day and more activities than can be covered by the points available. The player must choose which events to trigger, losing access to others in consequence. Network play and Amiibo functionality are also supported, with network play allowing players to passively visit other players' monasteries online, and compatible Amiibo figures to be scanned for additional materials and bonus music tracks for scanning Fire Emblem-specific Amiibo.

As with other Fire Emblem games, Three Houses uses a turn-based battle system; players take control of a set number of unique units. They move across a grid, transitioning from a top-down perspective to a third-person view when a battle is triggered. A new feature to the series allows player to hire Battalions, additional troops that can support a chosen unit. Battalions have passive abilities which grant character buffs to the lead unit, and can perform special moves called Gambits, which can range from healing multiple units to stunning powerful enemies. Players can also zoom in on the battlefield to assess individual battalions. As with other entries, there is a "Classic" mode where characters who fall in battle are subjected to permanent death, and a "Casual" mode where fallen characters are revived after each battle. After a certain point in the story, players can rewind and undo a set amount of turn actions per battle using the "Divine Pulse" ability.

Every unit is assigned a character class, which can be customized. While characters have starting abilities which naturally grant them a class, they can be taught additional skills which alter their class. Class changes are available upon a student's "certification" during the school segments, with certain prerequisites recommended to have a higher chance at passing the corresponding certification exam. Prior to starting a school week, lesson plans can be put into place to individually manage a unit's growth, build Support between two classmates by engaging them in group assignments, or simply instruct the class automatically with a passive "auto-instruct" feature. Rather than the previously established Weapon Triangle of earlier Fire Emblem games, different units have weapon-based skills called Combat Arts they can be taught during the school segments. Weapons have a set number of uses before they degrade and have their stats reduced. Combat Arts are learned by becoming proficient in a type of weapon; they deal higher damage than standard attacks in exchange for a large chunk of a weapon's durability.

Plot

Setting and characters

Three Houses takes place on the continent of Fódlan. The landmass is divided into three rival nations who are now at peace: the Adrestian Empire to the south and west, the Holy Kingdom of Faerghus to the north, and the Leicester Alliance to the east. The Church of Seiros, based at Garreg Mach Monastery at the continent's center, is the region's dominant religion and is an influential power in Fódlan in its own right. In ancient history, a war raged between the Church's titular founder Seiros and the "King of Liberation" Nemesis, an era which also saw the establishment of the Empire by Seiros. In the thousand years since then, the Kingdom split away from the Empire, then the Alliance declared its independence from both powers. A prolonged conflict ensued, with the Church being responsible for keeping peace. The nobility of Fódlan frequently bear Crests, sigils passed down through family bloodlines that grant magical powers. Bearing a crest greatly influences dynastic politics, with nobles inheriting Crests valued far above those who lack them. Those who have Crests can also wield powerful artifacts called Hero's Relics. The series's titular "Fire Emblem" appears as the "Crest of Flames", the Crest associated with the progenitor god.

Players take on the role of the main character, called Byleth by default, who can be either male or female. A mercenary by trade, they become enrolled in the Officers Academy of Garreg Mach Monastery as a teacher. During their journey Byleth is aided by Sothis, a strange and initially amnesiac girl who appears in their dreams and can only be heard by them. At Garreg Mach Monastery, Byleth chooses one of the three school houses, each aligned to a different nation of Fódlan. They are the Black Eagles led by Edelgard von Hresvelg, imperial princess and heir to the Adrestian throne; the Blue Lions led by Dimitri Alexandre Blaiddyd, prince of the Kingdom; and the Golden Deer led by Claude von Riegan, heir to the Alliance's leading house. The Monastery's staff includes those who directly work for the Church, some of whom are recruitable by the player. Other characters include Jeralt, Byleth's father, and Rhea, archbishop of the Church.

Story

One night, Byleth and Jeralt rescue three young nobles, Edelgard, Dimitri, and Claude from bandits, greatly impressing them. During the attack, Byleth is saved by the mysterious Sothis, who remains within them. Jeralt and Byleth are summoned to Garreg Mach Monastery, the home of the Church of Seiros, Fódlan's dominant religion. Jeralt reluctantly rejoins the Church's military arm, the Knights of Seiros, while Byleth is made a professor of the monastery's Officers Academy. Jeralt privately warns Byleth not to trust the Church's archbishop, Rhea. Byleth is then given the choice of leading one of the academy's three houses: the Black Eagles, the Blue Lions, or the Golden Deer, each populated by students from the Empire, Kingdom, and Alliance respectively. Byleth assumes their duties as teacher for their chosen house, training their students and leading them in battles on behalf of the Knights of Seiros. Byleth and their students discover frightening hints on the nature of Relics and Crests, such as a Relic thief transforming into a monster. Various conspiracies meddle with the monastery and plot against the Church: masked warriors called the Flame Emperor and the Death Knight, the Western branch of the Church, and a hostile cult known as "Those Who Slither in the Dark". Byleth thwarts an attempt to steal a powerful Hero's Relic, the Sword of the Creator. Unexpectedly, the Sword activates when Byleth holds it, and Rhea allows them to keep it. Byleth also rescues the sister of Rhea's advisor from the Death Knight and the Flame Emperor.

Jeralt is murdered by an agent of "Those Who Slither in The Dark". Reading Jeralt's diary, Byleth discovers that Jeralt fled from the Church due to his suspicions of Rhea's involvement in Byleth's birth. Sothis is the progenitor god, who was implanted into Byleth by Rhea when they were born in an attempt to resurrect her. Byleth pursues the cultists responsible for Jeralt's death. A magical attack by one of their leaders forces Sothis to merge with Byleth, allowing them to survive and defeat the cult members with a newly empowered Sword of the Creator. Rhea makes a futile attempt to awaken Sothis within Byleth, but the Flame Emperor attacks the ceremony with allies from the Adrestian Empire. The Flame Emperor is revealed to be Edelgard, who like Byleth bears the Crest of Flames; she accuses the Church of being corrupt. If Byleth sides with Edelgard, they help her lead an assault on Garreg Mach. If they side with Rhea, Dimitri, or Claude, then they help in the defense of the monastery; Rhea is also revealed to be a dragon. Regardless of the side chosen, Byleth is knocked unconscious at the end of the battle and wakes up five years later, discovering that Fódlan has plunged into war as the Empire, Kingdom, Alliance, and Church battle each other. The routes then diverge.

Verdant Wind route