← Tech
✦Tech
Steam's Review Backlog and Valve's New Release Rules: A Timeline of the AI-Game Flood (2026)
Dated timeline of Steam's 12-business-day review backlog, Valve's Nov 4 KST checklist changes, the 49.9% AI-disclosure tally and developer reaction.
TL;DR: Steam's pre-release review queue backed up through October 2026. Valve normally reviews builds in 3–5 business days, but indie developers reported waits of two to three weeks, and several missed their launch dates. On Nov 4, 2026 at 06:46 KST (Nov 3, US time), Valve posted "Updates to the Pre-Release Review Process" on Steamworks. In it, Valve said reviews are "taking up to 12 business days", mostly because it has to re-review broken submissions. It also added new mandatory checklist items, including running the game through Steam for at least 5 minutes. Valve never mentions AI in the post. Even so, developers and the press tie the backlog to the flood of AI-assisted releases. One community tally found 49.9% of October 2026 releases self-disclosed AI use, up from 1.7% in January 2024.
Timeline
Times are KST unless marked. Valve and most US outlets publish on US Pacific time.
| Date | Event | Source |
|---|---|---|
| Jan 2024 | Valve starts requiring developers to disclose AI-generated content on Steam. The later tally puts the January 2024 disclosure rate at 1.7% of releases | Magica |
| Mid-Jan 2026 | Valve rewrites the AI disclosure form. Behind-the-scenes "efficiency" tools such as coding assistants no longer need disclosure. AI content that ships in the game or its marketing still does | PC Gamer, Game Developer |
| Oct 12 (US) | Publisher 2 Left Thumbs says Wheel Make It is delayed while it waits on Steam. The game failed review because a reviewer couldn't find its local co-op. The same day, Studio Daimon submits Food Devils | Kotaku |
| Oct 15–16 (US) | Ashen Legacy (Oct 15) and Caravarn Carnage: Fruity Road (Oct 16) are submitted for review | Kotaku |
| Oct 19–26 (PDT) | Steam Next Fest runs with 7,240 games, up 65.2% from June's festival, according to How To Market A Game. The press-preview catalog had listed 8,011 demos | Steamworks, How To Market A Game, The Verge |
| Oct 26 | An r/gamedev thread spots a new release-checklist line requiring the game to have been "played for 5 minutes". Replies say it wasn't there before. Automaton reports it on Oct 28 | Yomimono, citing Automaton |
| Oct 27 (Seoul) | At Steam Indie Connect, Valve's Tom Giardino says: "We don't want to be gatekeepers telling developers which tools they should or shouldn't use." Marc Wilkinson says of low-quality Next Fest games: "We are fully aware of the situation" | Inven Global |
| Oct 27 & 31 (US) | Developers post publicly that their builds have been stuck in review "beyond the usual 3-5 business days" | Kotaku |
| Oct 31 (US) | Lacey's Flash Games launches on Halloween, four days late | Kotaku |
| Nov 1 (US) | Ashen Legacy and Caravarn Carnage are approved after 16–17 days | Kotaku |
| Nov 2 (US) | Reddit user u/ploz, who runs PCGame.com, publishes a tally of about 63,600 Steam releases. 49.9% of October 2026 releases carry an AI disclosure, up from 26.4% in October 2025 | Magica, Dexerto |
| Nov 4, 03:14 KST (Nov 3, 18:14 UTC) | The Verge reports that indie games are missing their launch dates. Food Devils misses its planned Nov 3 Early Access launch. Kotaku runs a similar report the same day | The Verge, Kotaku |
| Nov 4, 06:46 KST (Nov 3, 21:46 UTC) | Valve posts "Updates to the Pre-Release Review Process" on Steamworks. It cites "a significant increase in submissions" and says reviews are taking "up to 12 business days", and it adds new checklist items (below) | Steamworks Development |
| Nov 2–3 (US) | Itch.io says new game pages per day "doubled in the past 2 months" and that it "just deleted a couple terabytes of ai slop" | The Verge, PC Gamer |
| Nov 4–5 | PC Gamer, Game Developer, VGC, Engadget and GamesRadar+ cover the change, and comment threads fill with "vibe coder" jokes | GamesRadar+, Game Developer |
How long reviews are actually taking
| Case | Wait | Source |
|---|---|---|
| Valve's normal target | 3–5 business days. Valve advises submitting at least 7 business days before launch | Kotaku, The Verge |
| Valve's stated current wait | "Up to 12 business days" (about 16 calendar days) | Steamworks |
| Caravarn Carnage: Fruity Road | Oct 16 → Nov 1 (16 days) | Kotaku |
| Ashen Legacy | Oct 15 → Nov 1 (17 days, after one rejection) | Kotaku |
| Food Devils | Submitted Oct 12, still waiting on Nov 3 (22+ days) | Kotaku, The Verge |
| Cubic Earth and others | Up to 20 days unanswered, per PC Gamer | PC Gamer |
What Valve changed on Nov 4 (KST)
| New release-checklist item | What it requires | Source |
|---|---|---|
| Run the game through Steam for 5+ minutes | Launch the game with Steam's green "Play" button and run it for at least 5 minutes. The playtime must be from the past 7 days, or since the last build if that was uploaded more than 7 days ago. Any user's playtime counts | Steamworks |
| Common redistributables | Declare which ones Steam should install (DirectX, Visual C++, .NET, XNA and so on), or confirm that none are needed | Steamworks |
| Achievements | New checks flag incomplete achievement setups, such as missing names or icons and duplicate names | Steamworks |
| Steam Cloud | If the game supports Steam Cloud, a save must actually be written to the cloud before review | Steamworks |
| Screenshots | At least 5 screenshots tagged as gameplay. Menu, concept art and cinematic shots are now allowed if labeled correctly | Steamworks |
| Submission reminders | Prompts that adapt to the store page, for example confirming that listed languages are in the build, plus a field for reviewer test-account credentials | Steamworks |
In Valve's own words: "Believe it or not, sometimes we review builds that have not ever been played through Steam." Valve also says "more improvements are coming to the build review process."
The AI factor: what the numbers show and what they don't
| Period | Share of new releases with an AI disclosure | Source |
|---|---|---|
| January 2024 | 1.7% | Magica (u/ploz tally) |
| Full 2024 | 13.2% (2,299 of 17,407) | Magica |
| Full 2025 | 24.0% (4,932 of 20,589) | Magica |
| October 2025 | 26.4% | Magica |
| 2026 through Nov 2 | 40.1% (10,312 of 25,708) | Magica |
| October 2026 | 49.9% | Magica, The Verge |
There are limits to what this tally can prove.
- Valve never blames AI. The Nov 3 post cites only "a significant increase in submissions" and re-reviews. The link to AI comes from developers and the press (PC Gamer, Kotaku).
- The data comes from self-disclosure, not Valve. The tally counts Steam's AI flag, so undisclosed use is missed. AI used only for marketing still counts. For 2026, art is the most-declared use (63%), and only 3% of disclosures mention AI generating content during play (Magica).
- The rules changed mid-series. Valve's January 2026 rewrite of the disclosure form changed what developers have to declare, so the years aren't strictly comparable.
- Overall volume is up too. Kotaku notes that more games were released on Steam by mid-October 2026 than in all of 2025, with about 4,000 in October alone.
Community reaction
- Affected developers: Food Devils director Alfred Kamon told Kotaku: "Tell us it may take weeks. Just don't promise us three to five days because then we make plans around the release date." Mira from the Cubic Earth team said "organic traffic to our store page from Steam features has dropped off completely." Earlier, Kamon had publicly guessed that the queue is "clogged up by AI slop."
- r/gamedev: Developers were surprised the 5-minute check didn't already exist. Many said it only catches builds that don't run at all, not low-effort AI games (Yomimono/Automaton).
- Players: Commenters reacting to Valve's post asked, "Are the vibe coders not even running their games before submitting them?" Others asked Valve to "do something with all the soulless AI slop 'games'" (GamesRadar+).
- Industry voices: Former Valve writer Chet Faliszek called the store "overwhelmed by slop" after Next Fest (GamesRadar+). At the Seoul event, a developer described extortion emails threatening to "copy your game with AI and release it first" (Inven Global).
- Timing pressure: Indie studios are trying to ship before WoW: Forever, Ocarina of Time and GTA 6 dominate November, so every lost week costs them visibility (Kotaku).
What to watch next
- Whether Valve publishes the promised full checklist reference in its review-process documentation.
- Whether review times drop back toward 3–5 business days in November.
- Whether Valve adds curation or filtering for AI-disclosed games. So far its position is still "no tool gatekeeping."
Related: Epic launcher vs Steam startup-speed controversy timeline · Steam refund policy explained (Terapep)
Sources
- Steamworks Development: Updates to the Pre-Release Review Process (Nov 3, 2026 US)
- Kotaku: Devs blame AI slop flood for Steam delays (Nov 3, 2026)
- The Verge: Indie games are missing launch dates because Steam is backed up
- PC Gamer: Valve admits it's 'running behind'
- GamesRadar+: Valve cracks down on Steam game submission process
- Game Developer: Valve warns of slower Steam approvals
- Inven Global: Valve at Steam Indie Connect (Oct 27, 2026)
- Magica: AI disclosures reach 49.9% of October 2026 Steam releases
- Yomimono (via Automaton): five-minute play requirement
- How To Market A Game: October 2026 Next Fest
- PC Gamer: Steam updates AI disclosure form (Jan 2026)
← Back to all posts