descending…
The original Krillion game gives you one dive a day, then charges a one-time fee before you can play on without limits. This Krillion Unlimited alternative removes both limits: dive after dive of 7 prompts at 25 seconds each, every answer scored by rarity from Plankton (10 points) to Deepest (100), free forever. Play solo dives back to back, jump into multiplayer rooms, or challenge a friend 1 vs 1. Every answer nobody else thinks of sinks you deeper toward 7,000 metres.
Krillion Unlimited is a free rare-answer trivia game that you play in your browser. Each dive hands you 7 open prompts: name a metal, a capital city, a venomous animal. You get one typed answer per prompt. Your answer scores by how rare it is: the answer everyone gives scores least, and the answer almost nobody finds scores most.
The word “unlimited” is the whole point of the game. There is no daily cap and no paywall, so you finish a dive, read your depth, and descend again straight away. Every dive deals 7 fresh prompts from a bank of hundreds, spread across categories like geography, movies, sports and more, which means no two dives run the same route. It is infinite Krillion in the literal sense: the dives stop when you stop. The official game sells the same idea as its paid Endless Dive mode; here the endless dive is not a mode at all. It is the whole game.
At a glance:
| Game | The Krillion Unlimited game: free rare-answer trivia |
|---|---|
| A dive | 7 prompts, one typed answer each |
| Clock | 25 seconds per prompt |
| Scoring | By rarity: 10 to 100 points per answer |
| Depth | Points × 10 = metres. A perfect dive: 700 points = 7,000 m |
| Modes | Solo dives, multiplayer rooms, 1 vs 1 duels |
| Daily limit | None. Play as many dives as you like |
| Price | Free. No paywall, no fee |
| Where | Krillion Unlimited online in your browser: phone or computer, no download |
A krill is a tiny sea creature, about the size of your little finger, and krill live at every depth of the ocean. They swarm in the bright water near the surface, and they also ride down into the dark, hundreds of metres below it. A creature that small has no business being down there. It goes anyway.
That is the shape of this game. Every dive starts in the Sunlit Shallows, where the obvious answers float, and a perfect dive sinks 7,000 metres to the floor of the Hadal Trench. The name takes the krill and stretches it toward a trillion, the same stretch players make when they call a 100-point answer a one-in-a-krillion answer. The original game at krillion.io uses the name for its own daily game. This site is a separate game built on the same idea, with its own prompts and its own bank, and here the dives never run out.
A full dive takes about three minutes from first prompt to final depth. There are no lives to lose and no penalty beyond the points an answer earns, so every dive is worth finishing. If your answer is not on the accepted list, the game tells you on the spot, and you can suggest the answer for review right from the results screen.
Prompt: "Name a subatomic particle"
| Answer | Tier | Points | Depth |
|---|---|---|---|
| Electron — correct and everyone’s first thought | Plankton | 10 | 100 m |
| Muon — correct and a step sideways | Rare | 60 | 600 m |
| Tau neutrino — correct and almost nobody finds it in 25 seconds | Deepest | 100 | 1,000 m |
Same prompt, same clock, same right-or-wrong. The only difference is how far sideways you think.
Every accepted answer sits in one of six rarity tiers, and the tier is set by the answer itself, never by speed. A correct answer that almost nobody gives is worth ten times the answer the whole room typed. Points convert straight into depth at 10 metres per point, so seven perfect answers total 700 points and 7,000 metres. That is the floor of the Hadal Trench.
| Tier | Points | Depth | What it means |
|---|---|---|---|
| Plankton | 10 | 100 m | The answer everyone gave |
| Too Clever | 15 | 150 m | A sideways step, still crowded |
| Schooler | 30 | 300 m | A real move away from the crowd |
| Rare | 60 | 600 m | Genuinely uncommon |
| Deep Cut | 85 | 850 m | Very few divers found this one |
| Deepest | 100 | 1,000 m | The one in a krillion answer |
That top answer has a name of its own: players call a 100-point answer the one in a krillion answer, a play on “one in a trillion,” and the original game uses the same phrase for its top tier. Here the tier is called Deepest, and every prompt in the bank holds at least one. Finding it is the whole game. The clock matters less than thinking past the answer everyone else just typed.
Your first instinct is everyone else’s first instinct. Ask a room to name a fruit and most people type “apple”; ask for a capital city and Paris and London swallow most of the answers between them. Those answers are perfectly correct. They are just crowded, and crowded answers float near the surface.
The rare answer is usually hiding one step sideways from the famous one. It is rarely the best-known example of the category. It is the correct example standing next to it, the one you only reach if you know the category well. The game rewards a particular kind of knowledge: knowing a subject well enough to leave its obvious answer behind inside 25 seconds.
The prompt lands and your brain serves you an answer before you have finished reading. That speed feels like knowledge. Mostly it is rehearsal. The famous answer is famous because it has been said the most, in classrooms and quizzes and a lifetime of small talk, so it is the one sitting closest to the surface of your memory.
Every other player gets the same delivery in the same first seconds. That is the problem. Rarity in this game is graded against the whole room's instincts, and the whole room's first instinct is your first instinct. Typing it earns you a correct answer and the smallest score on the board: Plankton, 10 points, 100 metres. Correct, and crowded.
The good answers sit one layer down. They rarely arrive first. They turn up when you push past the famous example and ask what else lives in the category:
None of this needs more knowledge than you already have. It needs one habit: treat the first answer as a placeholder, and spend the rest of your 25 seconds looking underneath it.
The solo dive is the heart of the site, but the same prompts and the same rarity scoring run through all three Krillion games on this page. Pick your water.
Dive alone against the answer bank, as often as you like. Solo dives are where records are set: your best depth, your average, and your ranked ELO from duels all live in your stats. With no daily lock, a solo session can run to two dives or twenty. The game keeps dealing fresh prompts either way.
Prefer company? Puffer Party seats up to six players around one table on the same prompts, answering in turns. Rare answers earn hearts; the famous answer feeds you to the puffer. Two public house tables run all day with resident puffers holding the seats warm, and a table of your own is one 5-letter code away.
The duel is the purest form of the game: two players, the same 7 prompts, winner takes the ELO. Send a challenge link to a friend, or take a ranked match against a matched opponent. The party page runs both: rated tables for the ranked matches, challenge links for the friendlies.
When you want to test one corner of your knowledge, themed packs deal all 7 prompts from a single subject. There are three packs. Krillion Geography runs capitals, rivers, mountains and islands, and it is the fastest-growing corner of the game right now. Krillion Movies runs genres, directors, studios and cult classics. Krillion Sports runs athletes, tournaments, records and rivalries.
Packs are also the best Krillion Unlimited practice for the solo game. A category you have practised is a category where you already know where the deep answers live. Every pack dive is free and unlimited, exactly like everything else on this site.
Every prompt on this site comes from our own question bank. Krillion answers are graded into rarity tiers before they ever reach a dive: 1,026 prompts and more than 35,000 accepted answers. The bank is deliberately bottom-heavy. For most prompts, the long tail of rare answers is far longer than the handful of famous ones. That shape is what makes a Deepest answer possible on every single prompt.
The bank grows by hand. When a player suggests an answer the list missed, it gets checked, graded, and only then added. So the game you play next month is a little deeper than the game you play today.
Depth is your score made visible. As your answers sink, you fall through the same ocean zones the game draws on your results screen, from bright surface water to the trench floor:
Passing 1,000 m already puts you in the Twilight Edge, deeper than most dives ever reach. Around 4,000 m is an excellent dive by any standard, the kind you screenshot. The trench floor at 7,000 m asks for a Deepest answer on all seven prompts. It happens, just not often.
That is the whole method. Krillion Unlimited best answers are rarely the famous ones; they are the correct ones nobody else typed. The rest is practice, which is exactly what unlimited dives are for.
The game keeps its own small vocabulary. Six of the words below are the rarity tiers, and the rest describe how a dive works:
| Prompt | The open question a turn asks, like name a metal. You get one typed answer per prompt |
|---|---|
| Dive | One full game: 7 prompts, 25 seconds each. Your total depth is your score for the dive |
| Sink | What a good answer does. Points turn into depth at 10 metres per point, so rarer answers sink further |
| Plankton | 10 points, 100 m. The answer everyone gave |
| Too Clever | 15 points, 150 m. The sideways answer many players reach for. Still crowded |
| Schooler | 30 points, 300 m. A real move away from the crowd |
| Rare | 60 points, 600 m. Genuinely uncommon |
| Deep Cut | 85 points, 850 m. Very few divers found this one |
| Deepest | 100 points, 1,000 m. The rarest accepted answer on the prompt. The one in a krillion |
| Bank | The game’s list of prompts and graded answers: 1,026 prompts and more than 35,000 accepted answers, each placed in its tier by hand |
Ready to dive? Krillion Unlimited is free, the prompts are fresh, and the deep answers are down there waiting. Your first dive starts in seconds, and it costs nothing.