Infinite mode · free · no signup
One prompt at a time. Three tanks of air.
The descent never ends unless you do. A miss costs a tank of air; a One in a Krillion answer refills one. Prompts are tuned to how deep you already are.
Endless descent
How deep before the air runs out?
- One prompt at a time, forever — no rounds, no waiting.
- Three tanks of air. A timeout or a pass empties one.
- A One in a Krillion answer refills a tank. The deep ones pay in air too.
- Prompts are drawn to avoid repeats and match your depth.
25s
Prompt text
Out of air
Your descent ended in the Sunlight zone.
What Infinite mode is
Infinite Krillion strips the dive down to its core decision and repeats it forever. There are no rounds of seven and no natural stopping point: one prompt, one answer, then another. What ends the run is not a counter but your air supply. You start with three tanks; every timeout or pass empties one; run dry and the descent is over.
The twist is in the other direction. If the tier you return is One in a Krillion — the answer almost nobody else would give — a tank refills. The rarest answers pay twice: once in depth, once in staying alive. It changes how you think. In Unlimited you take one swing per prompt and move on; here a risky guess has a cost that compounds, so the game pushes you toward the rarest answer you're actually sure of, which is exactly the judgement the real daily dive rewards.
How it differs from Krillion Unlimited
The two modes share an engine and an answer bank, but they train different things. Unlimited is the classic dive loop: seven prompts with a gentle ramp from warm-up to hard, no penalty beyond the prompt itself, restart whenever you like. It's the relaxed gym. Infinite is the pressure chamber: prompts keep coming, difficulty is tuned to your depth, and every swing matters because air is finite. If your goal is streak play and nerve, Infinite. If your goal is volume reps of the full classic format, Unlimited.
Why the depth keeps going
Like the classic dive, every point is ten metres and the zones are the real ocean: sunlight, twilight, midnight past the Titanic at 3,800 metres, the abyssal plains, and the hadal trenches below 6,000 metres. A single perfect answer is worth 1,000 metres on its own — enough to go from the surface to past the midnight zone in one prompt. The depth markers you climb past during a run are the same ones you'd cross on an official dive; there just isn't a wall at the bottom.
A word on scoring
Tier names follow the six-band ladder every Krillion-style game uses, but the point values on this site are Krillion Zone's own estimates for our own prompt bank — not official figures from krillion.io. We grade your answer against our editorially curated keys, with common spellings, plurals and synonyms folded in, and grading runs entirely in your browser.
FAQ
Infinite Krillion questions
What is Infinite Krillion?
Infinite Krillion is an endless practice mode: one prompt at a time, forever, with three tanks of air. A miss — a timeout or a pass — costs a tank, and returning a One in a Krillion answer refills one. The run ends when the air is gone.
How does Infinite differ from Krillion Unlimited?
Unlimited deals the classic seven-prompt dive with no penalty for a bad round; restart as often as you like. Infinite deals one prompt at a time with a three-tank air supply, so pressure builds as your air runs down and prompts are tuned to your depth. Different training: reps versus nerve.
Can I recover lost air?
Yes — only with a One in a Krillion answer, the rarest tier. That's deliberate: the mode rewards exactly the risk it punishes. If you're down to one tank, the safest rare answer beats the riskiest one.
What happens if my answer isn't on the list?
Nothing is deducted. A short notice says the answer wasn't recognised, the clock keeps ticking, and you can try again or pass. Only timeouts and passes cost air.
Is this the official Krillion game?
No. Krillion Zone is an independent, unofficial fan-made practice site. Our prompts, answer keys and tier values are our own — explicitly not official data — and we are not affiliated with krillion.io. The official daily dive lives there.