13 Steam Store Page Mistakes That Kill Conversion (2026)

If your Steam page is not converting, the cause is usually one of thirteen specific mistakes. A capsule that drowns in text. A first screenshot with nothing happening in it. A trailer that opens with studio logos, tags in the wrong order, a misconfigured launch discount.

We now have prevalence data for most of them, from 373 real store pages our analyzer scored between February and July 2026. The headline finding is uncomfortable for a list like this one: the most common mistake is not the most damaging one. Capsule illegibility at thumbnail size gets flagged on 71.0% of pages and predicts nothing, while a capsule that fails to say what kind of game it is appears on only 23.6% and carries a 9-point lower overall score.

The Steamworks rules below come from documentation checked on July 2, 2026, and the shopper-behavior claims from Chris Zukowski’s research on real people browsing Steam. The prevalence figures are our own AI rubric’s verdicts, not a Valve metric, and the last section explains how far to trust them.

Each mistake hits a stage of the funnel: impressions to clicks, clicks to visits that stick, visits to wishlists and purchases. Fixing the wrong stage first wastes weeks, so the table maps each mistake to its metric and to how often we see it.

Read that column as frequency, not severity. Those two came apart hard in this data, and the post says so wherever it happens.

Mistake 1: the text-heavy capsule. Your capsule is the single asset that decides whether a shopper clicks at all, and text is the fastest way to ruin it. Valve’s graphical asset rules restrict base capsules to game artwork, the game name, and an official subtitle. Review scores, award logos, “20% off” banners, and text plugging your other games are all banned; a temporary artwork override can carry extra text for at most one month. A capsule built around quote pull-outs and feature lists has been out of compliance since September 1, 2022, and Valve’s stated penalty is reduced store visibility and no featuring in sales and events.

Mistake 2: designing at full size and never shrinking it. The main capsule is uploaded at 1232x706, but the small capsule in search results is uploaded at 462x174 and rendered as small as 120x45. Art that looks great at 100% zoom turns to mud at search-result size. Zoom out to roughly 30% and check the title is readable and the genre guessable. Our capsule design guide covers compositions that survive shrinking.

Now the honest part. Both surface in our data as one flag, “capsule loses impact or legibility at thumbnail size”, and it fires on 265 of 373 pages (71.0%). That makes it the most common verdict in the corpus and close to worthless as a diagnosis. Pages carrying the flag score higher than pages without it: median 69 against 65, a stratified median difference of +5.0 points (p < 0.0001) once you control for how many issues the page collected in total. Narrow it further and it collapses. Pages flagged only for thumbnail legibility have a median capsule subscore of 72, the same median as pages the analyzer had no capsule complaint about at all (n = 219 against n = 53, difference 0.0, p = 1.00; 152 of 373 pages sit on that same value of 72, so read this as “no evidence of a gap”, not proof of equality).

This looks like what our rubric says when it has nothing worse to say. Shrink-test anyway, because it costs ten seconds and the CTR logic in the CTR benchmarks post is sound. Just do not treat “71% of pages make this mistake” as evidence that it is what holds your page back.

Mistake 13: a capsule that does not tell a shopper what kind of game this is. This is the one defect in the corpus with an effect size that survives every control we threw at it, and the reason the list grew from twelve to thirteen.

It appears on 88 of 373 pages (23.6%), a third as often as the legibility flag. Those pages have a median overall score of 59.5 against 70.0, a raw difference of -10.5 points (p < 0.0001). Control for issue count and it barely moves: -9.0 points (p < 0.0001). It holds in both release strata (-10.0 on 165 released pages, -10.5 on 208 unreleased, both p < 0.0001) and inside Action, Casual and Indie separately. And the analyzer takes it seriously in a way it does not take legibility seriously: 38.6% of these issues are severity critical, against a corpus-wide rate of 11.8%.

The fix is not “add more text”. It is to put what you actually are in the frame: the vehicle, the deck of cards, the isometric colony, the weapon in the character’s hands. We pulled this apart on its own in the capsule genre-signal finding, with the verbatim evidence and the genre breakdown.

Mistake 3: the dead first screenshot. When a shopper hovers over your game in search, a discovery queue, or a sale page, Steam shows a popup with your first screenshots in sequence. The first image carries the hover. A dead one — an empty vista, a menu, a dialogue box with no action — reads as “nothing happens in this game” in the half second you get. Lead with your game at its busiest and most legible, UI visible. We flag first-screenshot or ordering problems on 132 of 373 pages (35.4%), and here is the null you should know about: those pages score no differently once issue count is controlled (-1.0 points, p = 0.21). Fix it because the hover mechanic is real, not because we measured a penalty. We did not.

Mistake 4: screenshots that are not gameplay. Steamworks requires at least 5 screenshots and asks that they exclusively show gameplay: no concept art, no pre-rendered stills, no marketing copy over the image. In Zukowski’s research on how people browse Steam, many shoppers skipped the trailer entirely, which makes screenshots the evidence they judge you on. Ordering logic is in our screenshot guide.

The mismatch nobody checks. On 99 of 373 pages (26.5%) the analyzer found the page promising something the screenshots never show. A co-op game whose eight screenshots all show one character. A social sim selling “1,500+ NPCs” with screenshots of individual NPCs. A colony builder whose battle panel reads all zeros in screenshots 2 and 3. This has no score signal at all (stratified +0.4 points, p = 0.67), so treat it as an editorial note, not a measured effect: list every claim in your copy and check a screenshot backs it.

Mistake 7: logos, studio cards, and slow fades before any gameplay. In the same research, plenty of shoppers never pressed play on the trailer at all. The ones who do are mid-shopping and impatient. Trailer editor Derek Lieu’s optimization guide is blunt: gameplay, as soon as possible. Open on it within two seconds, put the studio logo at the end, and point the first trailer slot at your most gameplay-dense video, because that slot autoplays. Full spec in our trailer best practices post.

Mistake 5: burying the hook. The short description has a 300 character limit and gets skimmed, not read. If your comparison point, twist, or fantasy lands in the third sentence, most visitors never meet it. The first ten words should carry genre plus the one thing that makes your game different.

Mistake 6: writing lore instead of a pitch. “In the shattered realm of Aethon, darkness stirs...” tells a shopper nothing about what they will do. Player verbs beat world nouns. If you plan to localize, draft at 200-250 characters so translations fit. Our short description guide has templates.

The opening sentence is where this dataset concentrates its worst verdicts. 226 of 373 pages (60.6%) carry a weak-or-generic-opener flag and 106 (28.4%) a buried-hook flag, but the number that matters is severity: 90 of the 145 critical description issues in the corpus (62.1%) are about the opening sentence, more than every other description problem combined. Neither flag predicts a lower overall score once issue count is controlled (opener -0.1, p = 0.85; buried hook +2.0, p = 0.008, the wrong direction). The data supports “this is where our rubric spends its critical verdicts”, not “we caught pages paying for it”.

Mistake 8: vague first five tags. Tags decide which browse pages, tag hubs, and recommendation slots you can appear in, so tag mistakes damage impressions. Valve’s tag documentation is direct: your top 5 tags “should paint a fairly clear picture of your game,” and some store filters prioritize the first 15. A page whose first five read Indie, Action, Adventure, Singleplayer, Casual has told Steam almost nothing. Put the sub-genre tag first, because that one tag defines your comparison set. We flag tag ordering on 50 of 373 pages (13.4%).

Mistake 9: stopping at the minimum. Steam requires 5 tags before launch but uses your top 20 for visibility. Every empty slot is a browse page you chose not to appear on, and unused slots is our most common tag verdict after dilution, on 204 pages (54.7%). Fill all twenty, most specific first. Our tag rankings for 2026 list which tags carry traffic by genre, and the tag optimizer checks your order.

Two warnings, these being the weakest numbers in this post. First, every tag issue here predates a bug we fixed on July 26, 2026: the analyzer merged Steam features like Single-player, Family Sharing and Mouse Only Option into the tag list it read. 171 of 549 tag issues (31.1%), across 152 of 373 pages (40.8%), name a feature rather than a real tag. Second, the intuitive claim that irrelevant tags dilute discoverability did not survive. Raw, those pages look 6.5 points worse (p < 0.0001); control for issue count and the gap is +0.15 points (p = 0.86), and it stays dead after deleting every contaminated issue. Order your tags well because Valve says the order is used, not because we proved a penalty. We did not.

Mistake 10: no language support beyond English. Valve’s data, shared at GDC 2025 and covered by GameDiscoverCo, showed Simplified Chinese as the primary language of 33.7% of active Steam users across 2024 — ahead of English at 33.5%, the first full year Chinese has led.

112 of our 373 pages (30.0%) list exactly one supported language; the median page supports 7. Steam factors supported languages into what it surfaces to users browsing in other locales, and shoppers filter by language themselves. The minimum fix is store page localization into Simplified Chinese plus your genre’s next biggest markets, before the game itself is localized. Cost-benefit math by language is in our localization guide.

Mistake 11: misconfiguring the launch discount. The rules here are hard-coded and unforgiving, per the Steamworks discounting documentation:

The failure modes follow directly. Skip the launch discount and you cannot add it after release. Time your launch badly and the 30-day cooldown locks you out of the next seasonal sale window (only Steam-wide sales are exempt, not themed fests). Raise your base price and you have frozen your own discounts for 30 days in every currency. Check your date against the discount rules breakdown and the sale calendar.

Mistake 12: the wall of text. Shoppers do not read the about section; they scan it. Eyes bounce between images, GIFs, and section headers, and paragraphs longer than two or three lines get skipped. We flag an unformatted or dense about section on 89 of 373 pages (23.9%). Format for the scan:

• —One short GIF or image per feature, each showing the feature in play
• —Bolded feature headers a scanner can read without slowing down
• —No paragraph over three lines
• —The strongest feature first, because scroll depth decays fast

The score data here is a cautionary tale about raw comparisons. Wall-of-text pages look 5 points worse than everyone else (p = 0.003), exactly the result a post like this would love to quote. Control for issue count and it is +0.09 points (p = 0.92): the gap was pages with many problems having this one too. Worse, our rubric could not see the formatting it was judging, for reasons in the last section. Format for scanners because that is how the median Steam description is built, not on the strength of that 5-point number.

You will not fix thirteen things this week. Work top of funnel to bottom, and note that the order now leads with the one defect that measurably tracks a low score:

1. 01Capsule genre signal (13). The only item here with an effect size that survived every control.
2. 02Capsule legibility (1-2). Cheap and fast, even though the data does not single it out.
3. 03Tags (8-9). Twenty minutes that changes which shoppers see you at all.
4. 04First screenshot and short description (3-6). These decide the hover and the first five seconds on page.
5. 05Screenshot-to-copy audit (the mismatch box above). One pass, no new art needed.
6. 06Trailer re-cut (7), then localization (10), then discount setup (11).
7. 07About section reformat (12). Last, because it only matters once everything above works.

Run your page through the free Steam Page Analyzer to see which of the thirteen you are making; the store page checklist turns the fixes into a trackable list.

The prevalence figures come from a convenience sample: 373 pages somebody chose to paste into a free tool, not a random draw from Steam’s catalog, and 208 of them (55.8%) were unreleased “Coming Soon” pages. The verdicts are our own AI rubric’s, not a Valve metric and not an objective measure of quality. No sales or wishlist data is joined to any of it, so nothing here is a causal claim about money.

Four limits, in descending order of how much they should change your reading:

• —The most common flag is not the most damaging one. Every prevalence number above counts how often our rubric says something, and for most defects that count does not track the score once you control for issue count. We say so at each one rather than quietly reporting the raw gap.
• —Tag figures are contaminated. The provenance bug in mistake 9 affected every tag issue in the corpus. Treat tag prevalence as indicative and nothing more.
• —Our rubric could not see description formatting. A second bug had the scoring code looking for BBCode markup in a field Steam returns as compiled HTML, so it read “no formatting, no embedded media” on pages full of headers and images. Both bugs were fixed on July 26, 2026, but these 373 analyses predate the fix and were not re-run. Hence no score claim on mistake 12.
• —The rubric only sees your first 10 screenshots. 121 of 373 pages (32.4%) have more, so no claim here covers screenshot 11 or beyond.

Every comparison above is a two-sided permutation test on the difference of medians, 20,000 resamples, fixed seed, with the stratified version holding issue count constant. Where the stratified result killed a finding, it is reported dead. For the full scoring distribution see the 373-page audit; for the system behind the fixes, the Steam page optimization guide.