
An easy-to-play, fast-paced 3D shooter meets sci-fi yuri visual novel — a non-stop thrill ride from start to finish!
Modeled estimate, not a reported figure. How we estimate →
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 0.57/day in the week to Aug 27 → 0.14/day in the week after.
Reviews, worldwide (the counter carries no country): 0/day in the week to Jul 19 → 0.86/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 26 chart moves that followed a price cut of more than 20% went a median of 7 places towards #1, and the 2,400 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
About
"ULTRA0" is an easy-to-play pseudo-3D shooter that has a lot of visual novel parts.
In N Country, facing extinction from relentless monster attacks, young girls take up arms against the approaching threats.
You play as the elite warrior Shirogane, tasked with hunting down mysterious giant monsters.
Collect supply items to power up your character and take down wave after wave of monstrous foes!
Move your character to aim at enemies, and attacks will be automatically unleashed.
Powerful Bombs and Skills can also be activated with a single button press!
Annihilate the oncoming monsters!
It was ten years ago when a kaiju first appeared in Nation N.
Countless lives have been lost in the long and brutal struggle that followed.
Now, the last line of defense rests in the hands of the remaining girls.
Among them is Shirogane, a member of the elite Unit 81—one of the most dangerous active combat zones. With exceptional combat prowess, she has saved her comrades time and time again from the kaiju threat.
Today, once again, she steps onto the battlefield—
to face a new, unknown kaiju.

Get stronger with items!
Items can be obtained randomly along the way.
If you're lucky, the item's effect might be doubled or tripled!
The protagonist changes with each chapter.

Genres
Engagement
Reviews
Themes across 58 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
最近流行の適当にいちゃこくだけの百合とは違って、しっかり全員性愛の醜さが現れてて良かったです。
クリアしました!とても百合でロックでかわいい女の子達の物語で、 現代的な鬱展開もありつつ、最後まで完走できて凄くよかったです。 一時期プレイヤーキャラが非常に孤独な環境で闘う展開があるのですが そこのシーンが特に凄く叙情的で大好きです。
I bought it to play arcade bullet hell and didn’t really expect much of any story. But very quickly, I found myself playing it for the story and not the arcade bullet hell.
Media

Related
Related
Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English, Japanese
Hours played at review time, across 58 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
it was good!
I picked up Ultra0 on a whim because it seemed to be Space Harrier with yuri, only to discover that A: it's actually After Burner with yuri (even better), and B: it's just as much of a narrative focused game where the story is surprisingly legit and went some places I didn't at all expect based on the first couple of chapters. I ended up blasting through the whole thing in an afternoon, and while I'm not sure it'd be for everyone, I was very happy with what I played and would recommend at least taking a look.
立ち絵、ストーリー、音楽最高! 難易度も難しくなく、負けてもレベルを上げるから進めないことはないと思う。 3時間くらいでサクッと終わるので是非プレイしてみてほしい。
it feels a bit more like a concept (as most things are) than a fully realized vision. I liked how you can get a feel for the characters personalities/mental states through their gameplay segments, I always find things like that really cool. I really loved the music & art for the most part, story got a bit too pedo baity for me near the end tho. There is a point when a young character gets aged up quite a bit but is still mentally a grade schooler for no other reason than to sexualize them, kinda turned me off to some of the characters near the end of the game & the ending in general. My recommendation is more neutral than positive as a result, so just be mindful
壮大で激熱なSF百合ノベル、大変良かった……。 ぶっ飛んだキャラや世界観、シナリオも面白く、プレイ時間に対しての満足度が高い。 STG部分は爽快なBGMが気持ち良く、簡単とはいえ操作してて楽しい難易度だし、お話に上手く組み込まれていてよかった。 あとキャラの立ち絵がめちゃくちゃ可愛い。色々と癖に刺さる人は刺さるかもしれない。 製作者の独特な世界観を気に入った方は、前作の『MOMIBOSU』もおすすめ。 歯ごたえのある精密プラットフォーマーではあるが、アクション面もシナリオも良く出来ていて面白かった。
Ну это был интересный опыт. ULTRA0 это довольно коротенький shmup, который уникален тем, что он полностью про сюжет. А сюжет полностью про эмоции (в основном любовь между девочками). Мне в целом понравилось. Геймплей простенький и только 1 уровень по моим ощущениям был раза в 3 дольше, чем он должен быть (да, его суть была в том, что бы показать как долго героиня сражается, но разнообразия врагов уж слишком мало в игре для этого). Вот дизайны и музыка мне очень понравились. Диалоги тоже в принципе интересные. Вся игра проходится за часа 3-4. Что для такой цены в принципе норм. Опять же, эта игра берёт тем, что она необычная. Хотя раскрытия мира и хотелось бы больше. Прям львиная доля сюжета к "ну такая технология просто есть, вот это просто существует". Но в целом, тут больше на эмоции и юри давят, что тоже не плохо. Визуал и звуковое сопровождение это прям конфетка по моему мнению. На стимдеке идёт и выглядит великолепно. Буду теперь следить за работами этой студии. Всё же тут явно прям персональный проект, без попытки повторить что-то успешное, а это сейчас редкость.
I really like the story and the characters but in the end we hardly know anything about them. If there's ever a novelization, I will definitely buy it!
Selling now
See how fast this game is selling right now — estimated copies and revenue per day from recent review growth.
Players by region
Where this game's players are, estimated from review languages.
Players also reviewed
The games this title's players most often review too — audience affinity.
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