Games Library - Emulator Tests is an informative app designed for Android users interested in gaming emulation. It provides a detailed compatibility database for popular platforms such as PC, PlayStation 3, and Nintendo Switch, showcasing how these games perform on Android devices. Users can browse a catalog of games, check their compatibility status, and utilize search and filtering options to find specific titles. The app also allows users to mark favorites, making it easy to track games of interest.

In addition to compatibility information, the app offers performance metrics including FPS ranges, resolution, and device specifications such as CPU and RAM. Users can access tested settings that detail graphics APIs, accuracy levels, and various performance issues encountered during testing. As an open-source project, the app is available in multiple languages and emphasizes that it is not an emulator itself, but a reference tool for users to understand game performance on Android.