Loading…
An easy-to-play, fast-paced 3D shooter meets sci-fi yuri visual novel — a non-stop thrill ride from start to finish!
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Social Deduction Fest ends
Official stores with direct support.
"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.
