A Steam store page kit from your own game: capsules cut from a real frame, text from real research, packed for Steamworks
By Eduardo Orellana · Updated
Flockbay's Steam page drafts your whole Steam store page from the game itself and exports it as one .zip for Steamworks. The AI writes the short description, About this game, tags, price, languages and system requirements from your approved brief, three to five comparable Steam games and the project; it cuts the seven capsule and library images from one frame of the running game takes the screenshots at 1920 by 1080 and makes the trailer in Video studio; and it answers the content rating and the AI disclosure from the game and its own records of what was generated, for you to check. You upload it in Steamworks yourself: Flockbay sends nothing to Steam. It is in the Flockbay app on Windows and Linux: Steam page drafting by Flockbay is free in beta until December 1, then a paid feature, and the page by hand and its .zip stay free.
AppImage, x86_64. Ubuntu 22.04, Debian 12, Fedora 39 or newer.
Intel or AMD Chromebook, with Linux turned on.
Steam draws your small capsule at 120 by 45 pixels
Valve asks for a small capsule of 462 by 174 pixels, then makes 184 by 69 and 120 by 45 versions of it for its lists and search results. At 120 by 45, a long title in a thin typeface is a grey smear. Valve's rules say every capsule needs a readable name, and nothing else in text: no review scores, no awards, no discount banners.
That is a Steam page in miniature. Seven images at seven sizes, two descriptions with their own rules, tags whose order matters, and a disclosure about AI, each one easy to get slightly wrong. Flockbay's Steam page prepares all of it from the game you built, checks it against those rules, and hands you one file to upload.
Every image is cut from one frame of the game a player gets
During a Play, the AI plays to the moment that shows the game best, with the player character, the setting and the core action in one view and no menu or debug text, and keeps that frame. It keeps two or three from different moments, so you can switch in the Capsule step.
From one frame it cuts all seven images: the header capsule at 920 by 430, the small capsule at 462 by 174, the main capsule at 1232 by 706, the vertical capsule at 748 by 896, the library capsule at 600 by 900, the library hero at 3840 by 1240 with no text, because Steam draws the logo over it, and the library logo at 1280 by 720 on a transparent background. Every crop is centred on the subject as far as the frame allows, and the title is set in plain type on a dark band.
It tells you when a frame was smaller than an image and will look soft, and when the title cannot be read at the size Steam draws that image, which a shorter title fixes. A game with a real logo does better with its own picture: choose it in the Capsule step, and use only artwork you own or have licensed.
The text is written from your brief and from games already selling
The AI drafts the name, developer, genre, short description, tags, price, features, languages, About this game and system requirements, then the content rating, the AI disclosure and the copyright line, one step at a time, in the order you see them. Each appears in the form and the live store preview at once, marked Drafted by Flockbay until you edit it, with the old value one Undo away.
It writes from evidence. The approved brief says what the game is and what is not in this version, so the page promises nothing the brief left out. Three to five comparable games, read on their own Steam pages, set the price band and the tags. The project itself decides the rest: a feature the AI cannot point to in the scenes and scripts does not go on the page.
Steam's rules are applied as it writes. The short description is plain text, with no line breaks and nothing time-bound such as Now available. About this game has no links and names no other Steam game. Tags start with the most defining, because the first five describe the game everywhere it is listed. System requirements follow the project's renderer, Vulkan or Direct3D 12 class graphics for Forward+ and Mobile, OpenGL 3.3 for Compatibility, and the size of the export, and the AI says which it measured and which it estimated.
The AI disclosure starts from what Flockbay actually generated
Steam asks how AI was used to make your game, both content made before release and anything an AI makes while the game runs, and shows your answer on the store page. Flockbay keeps a record of the images, 3D models, sounds and music it generates into a game, and the AI disclosure step starts its draft from that count.
The records do not count the store page text the AI wrote, so it adds that itself: the disclosure Steam asks for covers the store page as well as the game. It answers the content rating the same way, from the scenes, scripts and art, and writes the copyright line. Each answer is marked Drafted by Flockbay until you edit it, and Review & export asks you to check them before you upload: Steam holds you to them.
Review & export packs it as one .zip for Steamworks
The last step packs the page into one .zip: a README that names the Steamworks page each part goes on, one text file per field, the capsules and library images at Steam's sizes, the screenshots in the order they were taken, and the trailer. You upload it in Steamworks yourself. Flockbay sends nothing to Steam, and the page is kept on your computer beside the game, not on our servers.
Steam's side is yours too. Valve charges a $100 Steam Direct fee per game, which it pays back once the game reaches $1,000 in adjusted gross revenue. The page has to be up as Coming Soon for at least two weeks before release, and Valve asks for it to be submitted for review at least seven business days before you want it live. Lock the game, then polish covers the last steps.
More on this: What you build is an ordinary Godot project, which is the shape a game gets sold in
Where it stops
The app and shortcut icons and event covers are not part of the kit, and the features the AI names are ticked in Steamworks, on Basic Info.
The name cannot change after Steam's pre-release review, so the AI checks it with you first. The Steam page is in the Flockbay app on Windows and Linux, with no sign-up; the Mac build is an earlier release. Steam page drafting by Flockbay is free in beta for every account until December 1, then a paid feature. Filling in the page by hand and its .zip export stay free.
The design note that goes with it is how publishing a game on Steam works.
Tools that prepare a Steam store page, compared
Read from each tool’s own website on 13 October 2026. Where a site does not say, the table says “Not stated”. The pages each row was read from are listed on the row.
| Tool | Store text | Capsule art | Library assets | Screenshots | Output | Sends to Steam | Price | Read from |
|---|---|---|---|---|---|---|---|---|
| Flockbay Steam page | Every field drafted from your brief, comparable Steam games and the project; marked and undoable | Header, small, main and vertical capsules cut from a real frame of the game, title in plain type; or your own picture | Library capsule, hero and logo, from the same frame | Five or more taken from the running game at 1920x1080, or your own | One .zip: a text file per field, images at Steam's sizes, screenshots, a README naming each Steamworks page | No; you upload in Steamworks | Free in beta until December 1, then a paid feature; by hand and the .zip stay free | Steam standard assets · Steam library assets |
| Summer Engine | A description draft, from its store page kit preset | Generated key art for the four store capsules, cropped per size; the preset's example header is 460x215, where Steamworks asks for 920x430 | Library capsule, header, hero and a transparent logo, on its capsule art page | 4 to 6 captures from the running game | Files its agent crops with a script; not one click, its page says | No; you upload in Steamworks | Image generation on Pro, $20 a month | Store page kit preset · Key art preset · Capsule art page · Pricing |
| Virtuall | Not stated | Header, small, main and vertical capsules | Library hero, plus event covers and localized versions | Not stated | Current Steam dimensions built in; exact sizes and formats not stated | Not stated; you approve before anything goes to Steamworks | €19 to €799 a month; 14-day trial | Steam asset guide · Pricing |
| Sorceress | No | Header, small, main and vertical capsules, from its image generator | Library capsule and hero sizes listed; making them not stated | No; it advises against cropping capsules from gameplay screenshots | PNG or JPG, with a transparent PNG master | No; you upload in Steamworks | $49 one-time Pro unlock; credits from $10 a month | Capsule art guide · Plans |
When another option beats Flockbay
Painted key art. A capsule cut from a gameplay frame shows the game a player actually gets. Illustrated key art is the other school, and Sorceress argues against gameplay crops altogether. If that is the look you want, commission an artist or use an image generator, then choose that picture in Flockbay's Capsule step.
Art variants and localized capsules in bulk: Virtuall lists event covers and localized versions beside the store capsules.
A game you are not building in Flockbay: every other tool above takes art from any engine.
Questions
- What sizes does a Steam store page need?
- Valve asks for a header capsule of 920x430, a small capsule of 462x174, a main capsule of 1232x706 and a vertical capsule of 748x896, plus a library capsule of 600x900, a library hero of 3840x1240 with no text and a library logo on a transparent background, and at least five screenshots of 1920x1080 or larger.
- Can AI make my Steam store page?
- It can draft it. In the Flockbay app, the AI writes every field from your approved brief, comparable games' Steam pages and the project itself, cuts the capsules and library images from a frame of the running game, and checks them against Steam's rules. It answers the content rating and the AI disclosure too. You check each answer, then upload the .zip in Steamworks.
- Is the capsule art AI-generated?
- No. Every image is cut from a real frame of your game, with the title set in plain type, so the page shows the game a player gets. You can choose your own picture or logo instead.
- Does Flockbay upload my game or my page to Steam?
- No. Flockbay prepares the page and exports it as one .zip with a README naming the Steamworks page each part goes on. The Steamworks account, the upload and the review are yours.
- What does Steam's AI disclosure ask?
- How generative AI made what players see, hear or read: art, sound or writing in the game, on its store page or in its marketing, and anything an AI makes while the game runs, with the guardrails that keep it from making illegal content. AI tools that only help write the code need no disclosure. Steam shows your answer on the store page. Flockbay drafts the answer from its records of what it generated into the game and the store page text it wrote, for you to check.
- How much does it cost to put a game on Steam?
- Valve's Steam Direct fee is $100 per game, paid back once the game reaches $1,000 in adjusted gross revenue. In Flockbay, preparing the page by hand and its .zip export cost nothing; Steam page drafting by Flockbay is free in beta until December 1, then a paid feature.
Related
- Making a Steam game with AI
- Lock the game, then polish
- Gameplay shorts for TikTok, YouTube Shorts and Reels
- AI devlog maker: your AI films the game it built
- Steam game maker
- What you build is an ordinary Godot project, which is the shape a game gets sold in
- A free 3D game maker, and what free usually hides in 3D
- What can Flockbay not do?
- AI game maker comparison: the five axes that matter
- Exporting your game
Flockbay builds and play-tests a whole Godot game for free: free AI every day or your own Claude or ChatGPT, on the official Godot engine.
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