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Iro press kit

Iro is a colour game for phones and tablets: a colour appears, and you name it in three numbers (its hue, its saturation and its lightness).

Free on Android, with no ads, no in-app purchases and no account. Iro is planned for iOS too, and its price there hasn't been set.

Download the press kit

ZIP, v04, 49.2 MB. The screenshots, key art and logos below, the dark-theme screenshots, 8 and 15 second cutdowns of the trailer, a how-to-play video, and the facts, FAQ and credits as text and as one PDF.

Facts

  • Developer Tomaž Drnovšek, Ljubljana, Slovenia
  • Platform Android phones and tablets, portrait only. Planned for iOS.
  • Price Free on Android. No ads, no in-app purchases, no subscription and no in-game currency.
  • Genre Puzzle. On Google Play: Game › Puzzle, tagged Puzzle and Casual.
  • Language English
  • Requires Android 7.0 or later
  • Plays Offline. No account, no sign-in, and your progress stays on your device.
  • Name The wordmark is IRO. In running text, Iro.

Links and contact

No embargo. For anything not here, write to hello@theirogame.com.

Trailer

The launch trailer: a real round, the game's moving chapter scenes, and the wordmark.

Screenshots

Phone screenshots, 1080 × 1920 PNG, from the real game and not retouched. Each links to its original file.

  • Iro's round screen for Chapter 7, Ocean. On the left is the target, a patch of strong blue; on the right is an empty grey patch labelled Your mix. Under them is the line "Blue water, from open sky to deeper shade." and the words 3 guesses left. Below are three sliders, H, S and L, set to 180°, 50% and 50%, and at the foot are buttons for Call, Commit and Finish.

    The round

    You get a colour, and three numbers to name it with: hue, saturation and lightness.

    PNG, 1.2 MB

  • Iro's result for round 1 of Chapter 7, Ocean. Two blue patches stand side by side, Target and Yours, with a score of 94 in a ring between them. Underneath, a table gives each number's target, your answer and the difference: hue 221° and 222°, off by +1°; saturation 57 and 62, off by +5; lightness 44 and 44, exact. Below that are three stars and buttons for Next round and Details.

    The result

    Your mix sits beside the target, scored out of 100, with the miss on each number set out underneath.

    PNG, 1.1 MB

  • Iro's details for round 1 of Chapter 7, Ocean, showing 3 stars and an average of 94. Below is the one guess, H 222 S 62 L 44, as a small blue chip labelled as the top guess and scored 94, with three notes: bring hue down by 1, bring saturation down by 5, and lightness is exactly right. At the foot are Next round and Result buttons.

    What each number was off by

    Open the details and each number gets a note: which way it was off, and by how much.

    PNG, 899 KB

  • Iro's home screen. The IRO wordmark sits under a cherry branch over misty mountains. Below it is the current chapter, "Change · Chapter 1 of 9, Persimmon: Red-orange fruit, turning toward amber.", with a ring reading 30% journey, and two counters, Books 2/3 and Streak 26. Three cards follow, each with a coloured spine and a landscape picture: Book I, Form, "Find the colour family."; Book II, Change, "Look between familiar colours."; and Book III, Stillness, "Notice the quieter differences.", which carries a padlock. A tab bar at the foot reads Journey, Daily, Collection and Settings.

    The journey

    Three books of nine chapters each, and the one you're in at the top.

    PNG, 2.2 MB

  • Iro's chapter screen for Ocean, Form, chapter 7 of 9, over a picture of a calm bay at sunset with a pine on the rocks. At the top are two readings, one saying the next chapter is open and one counting the rounds played at three stars, and the line "Form · Chapter 8 · Iris is next on the journey." Below is a grid of twelve tiles in shades of blue, numbered 1 to 12, each showing one to three stars; seven of them carry a small red seal.

    A chapter

    A chapter is twelve rounds. Each tile is one round's colour and the stars you took from it.

    PNG, 1.9 MB

  • Iro's Daily screen on the Garden tab, under a red maple branch. Week 39, 21 to 27 Sep 2026, named Bush Clover, is laid out as a raked-sand garden with a bonsai and a stone lantern. Monday 21 and Tuesday 22 are stones, Wednesday 23 has a ring round it for today, and Thursday to Sunday are faint circles. Underneath are counts of 2 stones this week and 25 stones across all weeks, and a button reading Start today's read.

    The daily garden

    One colour a day, and the week as a garden.

    PNG, 1.8 MB

  • Iro's Collection screen on the Atlas tab, under a willow. Three counters read 2 of 27 artifacts, 240 of 972 stars and 100 rounds. Under the heading Where you have been is a paper folding fan on wooden ribs, divided into twelve columns of hue and five rows of shade; 38 of its 294 regions are washed in colour, from orange and yellow through green and blue to violet and pink, and the rest are bare paper. Below is a list of chapters with their counts, such as Dawn 4/10, Forest 7/20 and Dusk 6/15.

    The atlas

    The atlas: every part of colour space you've read, coloured in on a folding fan.

    PNG, 1.3 MB

Key art and logos

Iro's key art: the IRO wordmark on the left of a misty lake with mountains, pines and stones in the water, under a cherry branch in blossom.

Use the light-ground wordmark on light grounds and the dark-ground one on dark grounds, at least 96 px wide. The wordmark is a brush painting, so there is no vector version: please don't set IRO in a font, recolour it, outline it, stretch it, rotate it or crop it.

The developer

Tomaž Drnovšek is a UI/UX and digital product designer based in Ljubljana, Slovenia, and the developer of Iro. The colour challenge comes from his daily job: he wanted to make a game out of the basic concepts he uses at work. It plays offline and without interruptions because he wanted to keep it simple, and the design problem he cared about was making the interface look good and work well. He made all of the game with the help of AI.

Questions

What does the player do?

A colour appears, and you name it in three numbers: its hue, its saturation and its lightness. Each guess is scored out of 100 by how close it looks to the target. After every guess the game tells you, in words, which way each of the three numbers has to move and roughly how far. In the first Book you get three guesses a round, and the round's score is your top-scoring guess, not your last. There's no timer, no lives and no fail state.

Do I need to know colour theory?

No. The first time you open Iro, six short opening rounds come before everything else. Each gives you the saturation and lightness and asks only for the hue, once round the colour circle. There's no score, and you can skip them in one press.

Does it need the internet or an account?

No. There's no account, no sign-in and no cloud sync, and the game has no tracking, analytics or telemetry. The Android app can't use the internet at all: the only permission it asks for is vibration. This website is separate. It runs Vercel Analytics and Speed Insights, and the privacy policy covers the game and the website each in its own terms.

Can I play it in a browser?

Iro is planned for iOS and Android. To try the idea first, the home page has one sample round, and it scores and answers the way the game does.

What about colour-vision differences?

The interface never says anything with hue alone: every state carries a glyph, a star count or a word as well. The core task is colour discrimination, and Iro doesn't pretend otherwise, so there's no whole-screen colour-blindness filter. There's a paper theme and a shadow theme, a high-contrast mode, and it follows the device's reduced-motion setting.

Is it on iOS?

Not yet. Iro is planned for iOS, with no price set.

Credits and use

The screenshots and videos here may be reproduced for editorial coverage and reviews of Iro, including articles and videos. Please show the game accurately and credit them Iro, Tomaž Drnovšek. Other uses need permission. The game's music and sound may be used in coverage too. Coverage does not need to be positive.

Iro is made by Tomaž Drnovšek, Ljubljana, Slovenia. Artwork was created with generative image tools and directed, selected and cut by Tomaž Drnovšek. All rights to the game's artwork, music and sound effects are held by Tomaž Drnovšek. Fonts: Instrument Serif and Public Sans, both under the SIL Open Font License.

Last updated: 10 October 2026