GameDoes Stack the Deck! Magic Mahjong use AI?
Most 2D art, background music, and female character voices are AI-generated, with AI coding assistance also used.
Our AI review, high confidence. Not a verdict; the evidence is below.
Checked against Steam on Oct 28, 2026.
Before you buy: anti-cheat, accounts, DRM
No anti-cheat, third-party account or DRM is declared on Stack the Deck! Magic Mahjong's Steam page.
Full anti-cheat, account and DRM details, with change history →
Production signals
Facts about who made the game and how players received it. They don't depend on AI, and they help tell a carefully made game that used some AI apart from mass-produced ones.
- Miyadaiku released 0 games on Steam in the last 12 months. 3 of their 3 games disclose AI.
- On Steam since — with 3 games.
- Not released yet.
- Our AI review of these signals: mixed signals.
What the developer says
This game was developed with the help of generative AI tools in the following areas. ■ Illustrations and images 2D artwork such as character portraits, backgrounds, cut-in illustrations, character creator parts, achievement icons, and store artwork was produced using image generation AI. The developer designed and directed the composition, character design, colors, and intent, then selected, retouched, cropped, and composited the generated images before including them in the game. ■ Music The background music was produced using music generation AI. The developer designed the required mood for each scene, generated candidates, then selected and edited the tracks that are included in the game. ■ Voices The male character voices are existing human-created audio assets (T-Sta), used in accordance with the provider's terms of use. The female character voices were produced using audio generation AI; the developer generated candidates, then selected and edited the clips included in the game. ■ Program code AI coding assistance tools were used for part of the implementation work. ■ Assets that do not involve AI All sound effects are existing human-created audio assets (Soundeffect Lab, Kurage Kosho, T-Sta, DOVA-SYNDROME), used in accordance with each provider's terms of use. They are not AI generated. The font is "Zen Kaku Gothic New," provided under the SIL Open Font License. ■ Rights and legal care All AI-generated assets were reviewed by the developer to ensure they contain no illegal content and do not infringe the rights of third parties. No generation was performed with the intent of imitating any specific real person or existing work.
From the “AI Generated Content Disclosure” on the Steam store page, quoted as written. First seen by us on Oct 28, 2026.
What other sources say
| Source | Their take |
|---|---|
| Steam disclosure | AI content disclosed |
| AI judgment deepseek-flash | Major AI · mixed signals, high confidenceReasoningThe disclosure states AI generated character portraits, backgrounds, cut-ins, achievement icons, store art, music, and female voices. These cover several major asset types, so AI content is a large part of what ships. The developer describes directing, selecting, and editing outputs, and the game is unreleased with no volume-release pattern. Against: Sound effects and male voices are human-made, and the developer describes hands-on direction and retouching of AI assets, suggesting real production effort rather than low-effort volume. |
| Remove AI Slop open-source extension | Mostly AI-generated (art, UI/icons, marketing, music/sound, voice, code) |
FAQ
Does Stack the Deck! Magic Mahjong use AI?
Yes. Stack the Deck! Magic Mahjong's developer discloses AI-generated content on its Steam page. Most 2D art, background music, and female character voices are AI-generated, with AI coding assistance also used.
Is Stack the Deck! Magic Mahjong AI-generated?
AI-generated content makes up a major part of the game, according to its disclosure.
How does GameAICheck know?
We read the AI Generated Content Disclosure from the game's public Steam store page, check it daily, and show what independent curators and open-source tools say about it. Disclosures are self-reported by developers.
Is something wrong?
Developers and players can dispute or report this page. We review every message and correct mistakes.