House House makes Big Walk, a cooperative adventure game built around talking to friends across separate rooms. On Nov. 10, the Melbourne studio admitted something new. It had used artificial intelligence to fix one small bug near the end of development1.
The number House House gave was small. Well under 0.1 percent of Big Walk's code came from a chatbot's suggestion1. Steam reviews turned negative within a day anyway2.
House House built its name on Untitled Goose Game, a hit from 20192. Panic published Big Walk on Aug. 4, 2026, to a Metascore of 91.
Andrea Intg.@andreintgBig Walk developers disclosed the use of AI to meet the final stretch of production.
The outcome shows two things:
1) A studio as big as House House required AI to survive the market.
2) A smaller studio would have not survived the very people demanding disclosure. pic.twitter.com/e7xXo6UqpO
What the chatbot actually fixed
Big Walk runs on Unity, a game engine many studios license1. House House hit a rendering bug near sunrise and sunset. Shadows rendered at the wrong distance, and the game ran 50 percent slower for 20 seconds at a time.
House House's own engineers tried first. They spoke directly to an engineer at Unity, who called the fix impossible1. Only then did the studio ask an AI chatbot, a large language model, or LLM, that answers questions by predicting likely text.
The chatbot suggested a fix. House House reworked that suggestion by hand before it shipped. The finished patch ran about 10 lines of code1.
House House set a strict limit on what that use meant. "This is not an endorsement of, or argument for, the use of AI tools, however minimal," the studio wrote1. It called its missing AI policy a "failure" and promised a fuller one.
The studio named its worry directly. "We have some concern that voluntary disclosures like this might contribute to the normalisation of this technology, or its treatment as 'inevitable,'" House House wrote1.
A jury's new line forced the disclosure
House House had written this disclosure once already, for its own 2027 Independent Games Festival submission1. It stayed off Big Walk's Steam page, because Valve's own rules skip chatbot disclosure.
That changed on Nov. 9. Nineteen jurors for the 2027 Independent Games Festival signed a statement rejecting any game that uses generative AI, in any amount3. Austin Walker, a critic and one of the 19, shared it on Bluesky that evening.
The jurors treated a little AI and a lot the same way. Austin Walker and 18 fellow signers put it plainly. "Programming is a creative discipline whose labour deserves the same respect we extend to any part of making a game," Walker and the other jurors wrote3. Sam Barlow, the designer behind Immortality, signed the same statement.
Fans on social media began guessing which game had triggered the statement. House House answered the question itself, in public, the next day1.
Reviews turned overnight
Steam showed the reaction fast. Big Walk drew one negative review on Nov. 92. It drew 156 on Nov. 10, the day the disclosure spread.
Big Walk's negative Steam reviews jump from 1 to 156 in a day
Negative Steam user reviews posted for Big Walk, Nov. 9 to Nov. 10, 2026
Each column counts the negative reviews posted that day; the Nov. 10 column follows House House's AI disclosure and the IGF jurors' pledge.
Source: Gamerhub [2]. Chart by Ryan Elliott Dennis.
The numbers behind this chart
| Item | Value |
|---|---|
| Nov. 9 | 1 |
| Nov. 10 | 156 |
Only 36 percent of that day's Steam reviews were positive2. Critics had already scored Big Walk a 91 on Metacritic, months before the dispute began.
Big Walk falls from a 91 critic score to 36 percent on Steam
Metacritic's Metascore at launch against the share of Nov. 10, 2026 Steam reviews that were positive; higher is better on both
The blue dot is the Metascore critics gave Big Walk at launch; the magenta dot is the share of Steam reviews posted Nov. 10 that were positive, and the rod is the gap between them.
Metascore comes from critic reviews gathered over months; the Nov. 10 figure covers one day of Steam player reviews after House House's AI disclosure, a different sample and method.
Source: Gamerhub [2]. Chart by Ryan Elliott Dennis.
The numbers behind this chart
| Item | Metascore at launch | Positive Steam reviews, Nov. 10 |
|---|---|---|
| Big Walk | 91 | 36 |
Some players asked Steam for refunds2. Most had little chance of getting one. Big Walk launched Aug. 4, well past Steam's two-week refund window.
Big Walk joined a pattern already running through 2026. Earlier in the year, the studio behind Clair Obscur: Expedition 33 faced its own AI find. Reviewers spotted AI-generated assets in that game. The studio patched them out after launch2.
The case for disclosure, and the case against any use
Jonathan Holmes writes for Maximum Utmost, a games site. He praised House House's choice to speak up at all. "Regardless of where you stand on A.I., House House's decision to be transparent about this, and many other aspects of their development process, is something I applaud," Holmes wrote5.
Jarrod Harrison, a writer at Checkpoint Gaming, read the same facts and reached the opposite verdict. He judged the studio by whether it used the tool at all. "Regardless of how innocuous the use was, the company still used a tool known for its environmental, social, and psychological harm in the first place, yet refused to disclose it to consumers until push came to shove," Harrison wrote6.
Only one reading can become the industry's rule. One judges by the size of the AI use. The other judges by the tool's mere presence, however small its trace.
What to do
Read a studio's own disclosure before judging its scale. House House's FAQ names the exact bug, the exact fix, and the Unity engineer it asked first1.
Weigh a game's AI use against the rule a jury just set this week. Big Walk's 91 Metascore reflects an older measure, set by critics before this dispute began2.
Ask a jury or a platform for its actual rule before judging a studio's disclosure. The Independent Games Festival's own leadership still weighs whether to adopt the 19 jurors' pledge as policy3.
By the numbers
- Well under 0.1 percent: the share of Big Walk's code House House traces to its chatbot's suggestion1.
- About 10 lines: the length of that suggestion, reworked by House House's own staff before it shipped1.
- 1 to 156: Big Walk's negative Steam reviews, from Nov. 9 to Nov. 102.
- 36 percent: the share of Big Walk's Steam reviews that were positive on Nov. 102.
- 19: the IGF 2027 jurors who pledged to skip any game using generative AI3.
- 91: Big Walk's Metascore, set by critics months before the disclosure2.
What to watch
Watch whether other indie studios post similar disclosures before the 2027 Independent Games Festival awards. See whether IGF's own leadership turns 19 jurors' pledge into an official rule for every juror. A formal policy would settle what Austin Walker's statement only argued3.
Valve's own rules are the other open question. A Steam label would settle what a single FAQ page leaves open1.
Sources
- House House, "Was AI used to make Big Walk?" Big Walk FAQ, Nov. 10, 2026, https://bigwalk.game/faq/
- Galadrius The Mighty, "Big Walk studio House House confirms limited generative AI use as Steam backlash mounts," Gamerhub, Nov. 11, 2026, https://gamerhub.co.uk/big-walk-house-house-generative-ai-steam-backlash/
- Luke Plunkett, "Some IGF Jurors Are 'Declining To Vote For Any Game That Uses Generative AI In Any Capacity'," Aftermath, Nov. 9, 2026, https://aftermath.site/igf-awards-2027-ai-statement-judges/
- TJ Denzer, "House House addresses AI tool usage in Big Walk's 'final stretch of development'," Shacknews, Nov. 10, 2026, https://www.shacknews.com/article/151318/house-house-big-walk-igf-generative-ai
- Jonathan Holmes, "I applaud the Big Walk devs for self-disclosing their use of A.I.," Maximum Utmost, Nov. 10, 2026, https://maxutmost.com/i-applaud-the-big-walk-devs-for-self-disclosing-their-use-of-a-i/
- Jarrod Harrison, "Big Walk developer House House discloses use of generative AI tools," Checkpoint Gaming, Nov. 11, 2026, https://checkpointgaming.net/news/2026/11/big-walk-developer-house-house-discloses-use-of-generative-ai-tools/
