Wallpaper Cat

A desktop pet simulation with a kitten and koi pond

Uncle Popper · Published by Uncle Popper Game · Released Oct 29, 2026

Reviews: No score yet
Recent reviews: Not enough recent
Players: 0; daily peak
Steam Deck: Untested
Last update on Steam: Unknown; no patch notes on Steam
Minimum PC: Integrated (WebView2 hard…; 4 GB RAM · 0.5 GB disk; Full requirements

What is Wallpaper Cat?

You drag a kitten around your desktop and manage a watercolor koi pond in this casual simulation. You start with four fish and can keep up to fifty, clicking the water to feed them or inviting the cat to catch one.

For you if...

+you enjoy choosing fish colors, patterns, and names
+you like adjustable weather, ambient sounds, and your own music

Not for you if...

−you want constant activity rather than an idle desktop companion

Screenshots and trailer

Wallpaper Cat system requirements

Minimum: Integrated (WebView2 hard…, 4 GB RAM, 0.5 GB of disk space.

As published by the developer.

Can my PC run Wallpaper Cat?

Tell us your graphics card once and every game page will answer this for you.

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Minimum

OS: Windows 10 / Windows 11
Processor: Intel® Core™ i3 @ 3.2 GHZ
Graphics: Integrated graphics (WebView2 hardware acceleration supported)
Memory: 4 GB RAM
Storage: 500 MB available space

Does Wallpaper Cat have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does Wallpaper Cat run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 6
Steam features: Cloud saves, Family Sharing
Languages: Text only: English, Italian, Spanish - Spain, Simplified Chinese, French, German, Danish, Ukrainian, Russian, Bulgarian, Hungarian, Indonesian, Turkish, Greek, Norwegian, Czech, Japanese, Polish, Thai, Swedish, Traditional Chinese, Romanian, Finnish, Dutch, Portuguese - Brazil, Portuguese - Portugal, Spanish - Latin America, Vietnamese, Arabic, Korean, Malay.

Does Wallpaper Cat use AI-generated content?

Yes. The developers disclose AI-generated content on the game's Steam page:

Wallpaper Cat includes pre-generated AI-assisted artwork: kitten and pond-creature illustrations, pond backgrounds, and some Steam store capsule, library and promotional images. Some kitten walking and turning animations use frames from AI-generated videos (Doubao). Selected localization text was also prepared with AI assistance. These materials are fixed assets prepared during development and integrated into the application or store artwork. The game does not generate AI content during gameplay and does not connect to any external AI service during gameplay.

The statement mentions: ArtText & translationsStore page & marketing

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 30, 2026. How to filter AI games on Steam