Desktop Pet: An AI Desktop Pet That Can Make Sarcastic Comments

Desktop Pet is an open-source upgraded Windows desktop pet based on the classic eSheep project, integrated with local AI large models (such as Gemma). It allows the pet to not only move and play but also interact intelligently and have sarcastic conversations. Developed in C#, the project supports desktop environment awareness and custom pets, balancing nostalgia with modern AI technology to add fun and companionship to office desktops.

The eSheep desktop lamb from the Windows 95 era was a memory for many. The Desktop Pet project reconstructs this classic concept, retaining fun while integrating local AI technology. Its core idea is to keep a virtual pet that can move, play, and make sarcastic comments on a serious office desktop to relieve work boredom. The project is maintained by EmilianoDorantes, open-sourced on GitHub, and released on June 10, 2026.

1. Animation rendering: Uses sprite sheets + XML configuration, integrates frame sequences, separates logic and rendering, with concise resources and low memory usage;
2. Desktop awareness: Implements window detection, multi-monitor support, and taskbar awareness via Windows API, enabling interaction between the pet and the desktop environment;
3. Local AI integration: Supports lightweight LLMs like Gemma, enabling contextual dialogue and personalized sarcastic comments, ensures privacy protection (local inference), and provides a Notebook for GRPO training methods.

Built-in pets include classic eSheep, colorful sheep, Bunny, Asuna, Neko, Pingus, etc., each with complete animations; Usage methods are diverse: Windows portable version (run after unzipping), Microsoft Store version (auto-update), JavaScript web version; Customizing pets requires .ico icons and sprite sheets, configure animation parameters via offline/online editors, no code needed.

The project meets the implicit needs of modern digital life, adding a human touch to cold tools. Application scenarios include relieving fatigue from long hours of work, companionship for solo work, personalized desktop display, and revisiting nostalgic feelings. It is a case of combining nostalgic elements with modern AI, demonstrating the potential of edge AI applications, and is self-mockingly called "useless" by the author but has unique value.

1. Experience: Download the portable version to run directly, or install from the app store, or try the web version embedded in a blog;
2. Customize: Use the editor to create exclusive pets, only need icons and sprite sheets;
3. Contribute: Participate in community development (such as system tray, animation design), or provide training data, inheriting the classic eSheep spirit.