Who's shipping what
Most AI-made games right now are small. One person points a coding agent at real project files, plays every build and keeps the scope tight. Browser toys and jam entries make up the biggest crowd. A thinner stream of survivors-likes, tower defense and twin-stick shooters reaches Steam.
The builders are a mixed bunch. Vibe Jam drew over 1,000 entries in 2025 and 945 in 2026, when its rules required at least 90% AI-written code. The 2026 winner had about nine years of iOS work behind the game. Steam has a backend developer new to games, solo devs and small teams running Claude Code and Codex side by side. Parents build with their kids. Non-coders use hosted makers like Astrocade and Rosebud, whose big player counts are company claims.
Vibe Jam 2026 press page2025 jam results
The code tools, as sightings
None of the sources ranks these tools on a fair test, so read this as who shows up where. In one February 2026 snapshot of r/aigamedev, Claude came up in 15 of 87 readable posts, Codex in 9, Gemini in 8, ChatGPT in 3 and Cursor in 1. That is one day on one subreddit, counting mentions. Shipped games line up with it. Claude Code built the 2026 Vibe Jam winner and Codex Mortis on Steam. fly.pieter.com credits Cursor and Three.js. Codex often runs beside Claude.
People mix models freely. One writes code, an image model draws concepts, Suno makes music and ElevenLabs makes sound. In one forum thread, usage limits drove tool switching more than quality did. Codex's own research found no broad, current benchmark that crowns a winner. Running Claude Code and Codex on one project matches what the shipped examples use.
r/aigamedev snapshot (mirror)Codex Mortis on Steam
Engines that suit agents
This is workflow fit, judged from file formats, headless runs and builder reports. None of the sources measures engines head to head. Agents do best when the whole game is text they can read and a build they can run and look at.
Native: Godot + GDScript
Scenes and scripts are plain text, and the engine runs headless. JAMER, SWE-Game and GameCraft-Bench all test on Godot, and JAMER says it chose Godot for those two traits. The common bug is Godot 3 code in a Godot 4 project. Choose GDScript whenever a web build might matter, because Godot 4.7 can't export C# projects to the web.
Browser: Phaser 4, Three.js, Babylon.js
Code only, with no editor state to lose. Phaser 4 ships 28 skill folders for agents, including a v3-to-v4 migration skill. Three.js publishes an llms.txt that tells models which import pattern is current. Old-version code is the usual bug, so pin versions.
Editor-heavy: Unity, Unreal
Agents reach these through bridges that drive a running editor, because scenes live in binary files or YAML full of cross-references. It can work. Infinite Night reached Steam with Claude Code and a Unity MCP bridge. This kit still skips Unity on cost and license grounds.
What wins, what flops
The AI label is common on Steam now, and the money mostly goes elsewhere. The games that work keep AI out of the first impression, stay small and have a person checking whether it's fun.
About half of new Steam games released in October 2026 disclosed AI content (50.9% by Sulka Haro's count, 49.9% by another), up from about one in three in Q2 2026 and 42% in the most recent full quarter, yet AI-disclosed games took only about 10 to 12% of estimated sales in those quarters (Haro, July and November 2026, review-based estimates).
Most of the money sits in big, ordinary games with light AI use. Ichiro Lambe roughly estimated $660M gross for 10,258 AI-disclosed games by November 2025. Twelve made eight figures, and 9,556 made under $10,000.
The label travels with fewer reviews. AI games reach 100 reviews at about 0.55 times the rate of other games. A vendor study of 9,879 paid games found 52.6% fewer first-month reviews after controls. Both are associations, and neither proves the label causes the drop.
Art is what players see first, and it shows up more in the flops. Among AI-disclosed games, 72% of flops mention AI art against 57% of successes. In October's Next Fest, 2 of the top 25 demos disclosed AI, against 35% of demos ranked 101 and below.
Haro, November 2026Haro, July 2026Zukowski on Next Fest
When AI is the game
The few wins make a weird answer the fun. Infinite Craft caches every combination, so repeats cost nothing. Death by AI reports 20 million players in three months, a figure from the vendor that sells its AI. Story games built on open chat NPCs mostly land at Mixed, with Suck Up! at 62% and Vaudeville at 47%.
Hosted platforms can take your game with them. Gambo AI shut down in May 2026, and only exported games survived. Rec Room closed on June 1. Research firm Sacra says one Maker AI user cost more than a Plus subscriber's net revenue, while Rec Room blamed the VR market and wider gaming headwinds.
The solo money stories
Every revenue number for a single AI-built game comes from its creator or a vendor, and none has been checked independently. Pieter Levels posted that fly.pieter.com hit "$1M ARR in 17 days," an annualized run rate from a strong launch month. His own projects page, updated November 3, 2026, files it under "Okay: Took off, Made money but not sustainable."
The typical result is far smaller. One builder ran a one-person Claude Code "studio" with 15 subagents, shipped 7 Android games in two months and earned 152 yen in ads over 30 days, about one US dollar. Infinite Night passed Steam review in April and shows no user reviews as of November 5.
Levels' projects pageThe seven-game write-upRec Room report (IBTimes)
AFamily games skip the store fights
A game for your family skips store politics and review penalties. Keep AI at build time and out of runtime chat. Wholesome and Cozy are Steam's least AI-heavy tags (6% and 10%), which hints that this audience prefers handmade work.
BParty games for the couch
Local Co-Op is another low-AI tag at 11%. If an AI judges the game, cache its answers or run it locally so game night has no cloud bill. Ikemen GO is a free fighting game engine for a home arcade cabinet.
CRetro games for handhelds
Pixel Graphics sits at 12% AI. Godot APKs sideload to Android handhelds, and GB Studio makes real Game Boy ROMs.
DJams that welcome agents
Ludum Dare and Global Game Jam allow AI tools, and Vibe Jam requires them. Most itch.io jam series now ban AI assets. In 11 recurring series, 94% of 2026 entries ran under a ban.
The fuller numbers behind this report
- Lambe's bands. His method multiplies reviews by price by 35, which he calls "the roughest back-of-the-envelope calculation." The eight-figure list reportedly includes Stellaris and Call of Duty: Black Ops 6.
- The review study. Game Oracle, a Steam analytics vendor, studied paid games from January to October 2025 and controlled for genre, month, publisher and developer history. It is observational and not peer reviewed.
- Ratings. AI games average 76.4% positive against 81.5%. Among games with 1,000+ reviews the gap is small and flips between samples (82 against 84 on 46 games in October, AI slightly ahead on 27 games in July).
- Haro's definitions. A success has 1,000+ reviews (138 games). A flop has under 50 reviews after nine months or more (a random 400). Successes also disclose AI voice (24% against 8%) and localization (18% against 6%) more often than flops.
- After-launch flags. Haro found 22% of successful AI games added their disclosure after launch.
- Next Fest. 34.6% of 7,240 demos disclosed AI, and only 0.3% of disclosing demos called themselves substantially AI-built. Zukowski calls his ranking preliminary, and a correlation is not a cause.
- Sales estimates. All sales shares come from the Boxleiter method, which turns review counts into sales. Haro calls it poor for any single game, so none of these is one game's real earnings.
Lambe's $660M estimateHaro, Part 2Review penalty study (PC Gamer)
AI as gameplay, and the platform cases
- Death by AI. 10 million players in month one and 20 million in three months, plus "now profitable" with no figures. All from Inworld, which sells the tech.
- inZOI. Krafton says it sold over 1 million copies in its first Early Access week. Steam shows 79% of 14,625 English reviews.
- Suck Up! 62% of 228 reviews. Vaudeville 47% of 287. AI Roguelite 82% of 617.
- History Simulator: Chongzhen. Launched at 48 yuan plus per-token charges and later went free. Its 1,200+ reviews sit at about 54% (the article says 56% in one place), with most complaints about pricing. The developer reports 75.1% day-two retention.
- Whispers from the Star. Very Positive, 80% of 1,666 reviews, with a reported day-one peak of about 964 players. Loved and small.
- Where Winds Meet. Players skipped quests by talking its chat NPCs into handing over the answer (reported).
- Rosebud. The free tier carries no commercial rights, and code export starts at $50 a month.
- Astrocade. The CEO says it grew from about 5 million to 10 million monthly players in four months. Company claims.
Death by AI (vendor)Chongzhen (36Kr)Gambo AI shutdown
More small, honest cases
- Codex Mortis. $3.99 on Steam. Its early period sat at Mixed, 60% of 10 reviews. Today it is Very Positive, 81% of 96, a small audience.
- Infinite Night. Its creator says it took ten days. Released April 9, 2026, it has found almost no players.
- Pixel Darts. 202 copies and $1,165 in lifetime gross against about $600 in AI and software costs, from the creator's screenshot. Not independently checked.
- Unmotivated Heroes. About 50 to 60 copies in its first Early Access month.
- The 2026 Vibe Jam winner. $25,000 prize. He had the AI build a map editor, road editor and debug panel. Creator-reported build: 27,000+ lines, 188 commits, under $150 in tools, about two weeks.
- Dialed. About 30 million plays across four games in 90 days, by the creators' own numbers.
Infinite Night on SteamPixel Darts numbers
Store, award and jam rules that matter
- Steam. Disclose AI content that ships with the game or is generated live. Valve says efficiency tools are "not the focus," so coding help needs no label.
- Poki. No chat systems of any kind, no raw AI output, and be ready to show your tools and prompts.
- Playdate Catalog. Since April 2026, no gen AI for art, audio, music, text or dialog. Code help is allowed with a flag in the main Catalog.
- Newgrounds. Bans games generated from an AI prompt and AI-made thumbnails, as Codex's research reports. The checker could not open the page.
- Crackdowns. November 2026 headlines say itch.io deleted "a couple terabytes" of AI uploads and Valve tightened submission checks. The article bodies were not read.
- Indie Game Awards. Clair Obscur: Expedition 33 lost Game of the Year and Debut Game after AI placeholder textures shipped in it.
- Arc Raiders. AI voices drew anger, and the game still sold over 12 million (12.4M per Nexon, January 13, 2026). Embark re-recorded some lines with actors.
- Ludum Dare. AI tools are allowed. Opt out of a category if about 90% of its work came from a generator.
- The jam trend. Share of entries under AI bans in 11 recurring series went 0% in 2021 and 2022, 6% in 2023, 28% in 2024, 89% in 2025 and 94% in 2026.
Steam content surveyPoki AI rulesJam rules dataset
What players and developers say
GDC's 2026 survey found 52% of industry respondents think gen AI harms the industry, up from 30% in 2025 and 18% in 2024. GameDiscoverCo asked about 3,800 players and found 43% fine with AI, 31% negative and 8% who would never buy, and 56% want coding tools disclosed too. Quantic Foundry found 85% of 1,799 gamers below neutral on gen AI in games. The surveys ask different questions. Sales data shows a real penalty and no boycott.
The code tool evidence, with its limits
The r/aigamedev snapshot is one day of one subreddit, read through a mirror because Reddit blocks automated reads. It counts posts that mention a tool. Shipped games are a separate question. It also puts Codex second for 2026, ahead of Cursor.
- The 2026 Vibe Jam winner, A Game About Capybaras Delivering Food, used Claude Code (Opus 4.7), Three.js, Tripo3D, GPT Images 2, Grok, Suno and ElevenLabs. He won $25,000. His build stats come secondhand from his own write-up: 27,000+ lines, 188 commits, under $150 in tools and about two weeks.
- Codex Mortis used Claude Code, TypeScript, PixiJS, bitECS and Electron, with ChatGPT for art.
- Imperium (creator-reported) ran Claude Code sessions in separate Git worktrees, a custom bridge that loads saves and takes screenshots, and headless balance simulations, over about 2,500 commits.
- PARALLAX (creator-reported) paired Claude Code and Codex with a human artist-writer, a developer and a project manager.
Lovable, Replit, Windsurf, Copilot and Bolt each have a prototype or two on record, such as a father and son's Minecraft-themed learning game made with Copilot. No paid commercial release turned up for any of them.
In GDC's 2026 survey of 2,300+ industry people, 36% use gen AI at work and ChatGPT led the tool list at 74%. Code help was a use for 47% of those AI users, roughly 17% of everyone asked. Unity's 2026 report says 62% use AI for coding help, but it surveyed Unity users. Cursor was Vibe Jam 2026's title sponsor, so the jam's tool advice comes with a sponsor attached.
GDC 2026 surveyCapybara winner write-up (36Kr)fly.pieter.com
The benchmark numbers in full
- GameDevBench. The best agent solves 53.8% of tasks. Gameplay tasks succeed 51.4% of the time against 33.0% for 2D graphics. Visual feedback took GPT-5.4 from 41.1% to 52.0%.
- JAMER. Runtime pass rate 80.4% on small Godot projects, 5.7% on large ones. The authors say the "bottleneck lies in architectural design."
- SWE-Game. 247 Godot tasks. The best whole-game construction score is under 60 out of 100 (50.38 on Brief-to-Game).
- GameCraft-Bench. 140 Godot tasks. The best agent scores 41.46%.
- A Godot forum postmortem. 40 hours over two months on a metroidvania, then the author gave up. The agents "can't handle more than 2-3 scripts at a time." The tools were Gemini, Replit, Cursor, Google AI Studio, Continue and Cline.
GameDevBenchSWE-GameGameCraft-BenchGodot forum postmortem
Engine notes and traps
- Godot. Models mix Godot 3 and 4 calls (yield and await, KinematicBody2D and CharacterBody2D).
godot --doctool dumps the installed engine's API for the agent to read. Headless mode always uses a dummy renderer, so screenshots and movies need a separate run with rendering on, for example --write-movie in a normal run.
- Godot web exports support only HTTP, the WebSocket client and WebRTC for networking.
- Godot writes editor metadata such as
.gd.uid files. Put them in every agent's allowlist, or its changes can get stuck.
- godogen (7,296 stars, MIT) is tested on Ubuntu, Debian and macOS only. Windows would need WSL2, untested. Its author finds C# more correct on the first try, which is one person's experience, and C# rules out a web build.
- Bevy's API changes each release, so agents read the installed crate source.
- Unity. One guide warns that hand-edited scene YAML can leave a reference that "silently becomes None." Unity Personal is free under $200K in revenue and funding. Pro is $2,310 per seat per year.
- Unreal charges a 5% royalty above the first $1M of lifetime gross revenue per product.
godogenUnity Personal termsThree.js llms.txt