
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 →
Media

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.

Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English, Japanese
Engagement
Reviews
Themes across 42 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
演出とストーリーが光る章立てのSF百合STG+NVL プレイ感はマルフーシャみたいな感じ シューティング部分の難しさみたいなものは無いので苦手な方も大丈夫です 3h未満で読み切れるのでノベル部分のジャンルが合えば是非、1本映画見る感覚で
劇情非常好 射擊部分不難但還是會死 不過自動存檔的點很細 而且可以中途強化所以不會卡關 推薦給喜歡可愛女角的所有人
TL;DR version of my review: if you can get it for like $5, like on-rail shooters and VNs, go for it. the visuals are great. but if you're expecting any sort of depth (gameplay or story-wise)... this may not be for you. I'm giving it a recommend because I like the idea, but you have to go in with LOW expectations. This game had so much potential. the beginning of the game set up some cool ideas, but it kinda just left them... The characters never felt fully fleshed out. The gameplay is pretty fun, but lacks ANY depth what soever. there's a "shop" where you can upgrade between some missions, or when you die, but theres no connection to the story. its never explained. it seems like the shop was meant to have way more to do in it, there to be more weapons, and other upgrades, but they either ran out of time, or forgot about it. The gameplay is super easy. the only reason I died is to see what would happen when I did.... a game like this should be WAY way harder. This game needed another year to develop. It could have been a real indie classic. As is, it feels very unfinished.
Related
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Trends
Modeled estimate over time, reconstructed from Steam's monthly review histogram.
Hours played at review time, across 42 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
かんたん3Dシューティングと銘打つ通り、攻撃は一度照準を合わせれば自動でしてくれ、敵や弾を一掃してくれるボム、体力回復やバリアなどのスキルがクールタイム制で何度でも使えるので易しい造りです。 SF百合ノベルという点で手を出す場合も、STG部分で詰まってストーリーが観きれないなんて可能性は低いんじゃないかと思います。 ストーリーは結構シリアスめ。プロローグとなるchapter1(所要:十~十数分程度)が素晴らしい導入なのでそれを見て判断するのもいいかと。 音楽はフリーBGM採用。PVで流れる『Tenacity』『捧げ灯』を始め、STG部分の爽快感やシナリオの重さによく合っています。 同じ作者の別作品である『MOMIBOSU』をやっていると、おっ、となる部分があったりします。
Peng, bottom of my heart, thank you for making this. Team, great work. I specifically noticed the QOL on fail-state on a certain boss, little touches like that? They separate the real guys from the fakes. This game is a visual novel with modern-recreated-retro-style graphics with gameplay of a very easy, and I mean very easy, rail shooter. Brutal honesty? The meat here is the character designs, the story, the music. The story here is awesome. It aligns with media like Alita Battle Angel, Eva, Umarangi Generation, Nier. My playtime was 3.5 hours for 10 USD and I feel that's absolutely fair. This game is incredibly great at emotional hooks. The beats here, the emotional whiplash, its insane. Its not for everyone to be sure but I really really adored this and I want more people to experience this story. I really will be telling all my friends about this because this deserves more eyes.
I wasn't really expecting much when i bought the game. It looked like one small and simple indie game trying to tell small fun story with just as simple gameplay. That's why i was more than shocked to see how much milage they got out of such a simple gameplay to tell a really exciting and engaging story. By the end i was really crying from both excitement and overflowing feelings and the final moments really stuck with me. I know i'm probably biased because it's yuri but it turned out to be one of my favourite indie game experiences of 2026. I played on Steamdeck and everything works perfectly smooth.
素晴らしい百合シューでした!市タリオに引き込まれてあっという間にクリアまで駆け抜けちゃった、勿体ない。
cute game
Interesting and fun short game. Would say the story overall is kinda underbaked but ultimately it did have me emotionally invested. The way it uses gameplay as a method of storytelling was real cool, lots of little moments that hit harder. English translation was a little iffy/overly literal at times but still competent. Would recommend and interested in what the dev makes in the future! (reina best girl)
I wish more people knew about this game. It's pretty cool!
Momentum
Pace estimated from the game's recent review growth (our daily snapshots) at its own sales-per-review ratio — a momentum signal, not booked sales.
Audience
Estimated from the language of this game's reviews — a proxy for where players are, not official Steam demographics.
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