New here? Start with the Krillion guide for how to play. This page is the reference for how the game works underneath, and Krillion Unlimited covers the extra mode.
Who makes Krillion
Krillion is made by one person, not a team, who goes by kp. The developer shared a few personal details in the FAQ because other people are claiming to be them. If you’ve seen a site described as the “official Krillion wiki” or companion, check who is saying so. The game itself is at krillion.io and the FAQ is at krillion.io/faq.
How answer sets are curated
Per the FAQ, each prompt’s answer set is built by aggregating datasets (dictionaries, wiki pages, encyclopedias, whatever sources the question calls for) and then merging and cleaning them into one set. That makes the answer set a curated list, not a live lookup, so its edges are wherever the sources ended. Prompts with thousands of accepted answers are normal.
How rarity is scored
The FAQ describes two paths, depending on the prompt:
| Path | Which prompts | How it works |
|---|---|---|
| Mechanical | Those reducible to a number | Scored against a familiarity database: how often the word or name turns up in what people read and write. |
| Assisted | Those that can’t be reduced to a number | LLM assistance plus a manual pass. |
So rarity is measured against how often a name appears in written language, not against how many players picked it. The winning instinct is “real, but rarely written about”, not “what would other players not think of”.
What “too clever” means
The official definition: the go-to ‘obscure’ pick that isn’t actually that obscure.
The trap isn’t picking something common. It’s picking the same self-consciously clever answer everyone else picked.
Why an answer you’re sure of gets rejected
Because it wasn’t in the answer set. The developer’s FAQ says a fair answer is usually missing because a source was missed, and that they’re working to make that happen as rarely as possible. A rejection isn’t a ruling that your answer is wrong. There is one answer per prompt, so there is no second guess.
Why autocorrect accepts near-misses
Autocorrect is generous by design because many answers have aliases, and it checks those too. The FAQ’s example: “sea donkey” is an alias for the Threebanded Sheephead, and it is one letter off “sea monkey”. If an answer scored strangely, an alias collision is a likelier explanation than a scoring bug.
The Krillion gem isn’t the rarest answer
Past a certain depth rarity gets hard to tell apart, so the gem is also selected for fun factor: something at least a few players actually get. Chasing maximum obscurity isn’t the win condition.
What’s confirmed, what’s planned, what’s not official
| Status | What |
|---|---|
| Live | The daily dive (7 prompts, 25 seconds each, one answer each); four themed packs, free while in beta; a one-time unlock that turns ads off site-wide. |
| Planned, not out | An app and multiplayer. The developer says “eventually”. |
| Planned, no date | More themed packs. A Music pack is listed as coming soon; the stated priority is answer-set curation and rarity selection first. |
| Not official | Any site calling itself the official Krillion wiki, companion or answers source. |
Plans change, so check the FAQ for the current state before relying on any of this.
FAQ
Who created Krillion?
How does Krillion score answers?
What does "too clever" mean?
Why wasn't my answer accepted?
Is there an official Krillion wiki?
How many prompts are in a Krillion dive?
Find your next puzzle in the daily game directory or browse our daily word games by type.
Sources
References checked on . Historical reports and independent versions are identified separately. For current rules and modes, check the game’s own site.
- Krillion FAQ, by the developer krillion.io
- Krillion — official site krillion.io