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Jyoka, a Japanese-styled simulation that casts you as a kokujin-shu warrior landholder during the Sengoku period building up a castle town, launches on PC via Steam on November 16, 2026 at 12:00 JST. It costs $25 (tax included), and drops to $19 (tax included) for the first two weeks.
It is the work of solo developer Yuto, who says he spent roughly five years kicking the concept around and about three years building it alone. There are more than 190 building types, and the siege battles feature 73 real castles.
You start out as a kokujin-shu, a minor regional lord. Town building fills the early game, defense takes over in the midgame, and territorial expansion closes it out — the center of gravity shifts from phase to phase.
Can it serve both the player who just wants a town builder and the one who wants to unify Japan? Here is what the available information says about how this game is put together.
*Prices in this article are converted from Japanese yen at ¥153 = US$1 (November 2026 rate).
When does Jyoka release and how much does it cost?
Release is November 16, 2026 at 12:00 JST, on PC via Steam. The standard price is $25 (tax included), and for two weeks after launch it can be bought for $19 (tax included).
| Item | Details |
|---|---|
| Title | Jyoka |
| Release date | November 16, 2026, 12:00 JST |
| Platform | PC (Steam) |
| Standard price | $25 (tax included) |
| Launch price (first two weeks) | $19 (tax included) |
| Developer | Yuto (solo development) |
| Genre | Sengoku-era town building and territorial expansion simulation |
That two-week $19 price is $6 off the standard price. As indie launch discounts go, that is an honest spread. If the game is on your radar, deciding between November 16 and the end of the month is the cheaper move.
What kind of game is it? From town building to unifying Japan
This is a simulation where you play a Sengoku-era kokujin-shu — a minor regional lord — grow a castle town, and push toward unifying the country.
Progression splits into three stages. The early game is town building, the midgame is defense, and the endgame is territorial expansion. Within a single playthrough, the nature of what you are doing changes from stage to stage.
| Phase | Main focus |
|---|---|
| Early game | Building up the castle town |
| Midgame | Defending the castle and the town |
| Endgame | Expanding territory and unifying Japan |
Starting as a kokujin-shu is a smart premise. You are not a daimyo but a small landholder, so the opening move is placing a handful of buildings. As an entry point into the genre, that beats being handed an entire province on turn one.
Change the difficulty setting and you can also devote yourself purely to town building. Giving players an escape hatch — grow a town and skip the fighting if battles are not your thing — is a considerate bit of design. Flip that around and anyone who wants real tactical bite will be cranking the difficulty up.
How do you pick a starting point and a castle? 73 real castles are in the game
You can freely choose your starting location anywhere on the map of Japan. There is one restriction: the sites of the 73 castles and extremely small remote islands are off limits.
Those 73 castles are the real-world fortresses that show up in siege battles. In other words, every spot where a castle stands is reserved from the outset as something to attack, and the player founds a town somewhere around them.
| Element | Details |
|---|---|
| Building types | More than 190 |
| Castles in siege battles | 73 real castles |
| Starting location | Freely chosen from the map of Japan |
| Off-limits locations | The sites of the 73 castles, extremely small remote islands |
| Difficulty | Adjustable; you can focus purely on town building |
Free choice of starting point matters a lot in a game like this. You can play the “start from my hometown” angle, and whether you set up on the coast or inland changes how you build. Every replay becomes a different game.
More than 190 building types is a serious amount of content for a solo project, too. Hearing that roughly three years went into it alone puts the weight of that number in perspective. That said, the more buildings there are, the harder the UI is to keep clean, and that is the part worth checking hands-on.
A trailer is out as well. Watching the castle town grow and getting a feel for the siege battles is fastest in motion.
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Jyoka: everything we know, in order
Jyoka launches November 16, 2026 at 12:00 JST on PC via Steam. It costs $25 (tax included), with a $19 (tax included) price for the first two weeks. Solo developer Yuto built it alone over about three years, from a concept he started shaping roughly five years ago.
You play a Sengoku-era kokujin-shu, building a town early, defending it in the midgame, and expanding your territory late. There are more than 190 building types, and 73 real castles appear in siege battles. Starting locations can be picked freely on the map of Japan, minus the sites of those 73 castles and extremely small remote islands. Adjust the difficulty and you can concentrate entirely on town building.
A structure that cycles through town building, defense and expansion inside one campaign, plus the sheer volume of putting 73 real castles into siege battles. Set against a solo development run of roughly three years, the scale of what this is attempting is not normal. Because the difficulty setting offers an escape hatch into pure town building, even players who dislike battles can get in.
The two-week price of $19 is $6 below standard. If you are on the fence, the two weeks from November 16 are your decision window.
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