Lutris is a gaming platform for Linux. It supports as many games as possible for a wide variety of platforms including native games, Windows, Playstation, Gamecube, etc.
License: Open Source
Playnite is a versatile game library manager that excels in user-friendliness and customization, making it ideal for Windows users. In contrast, Lutris is more focused on Linux gaming, offering robust emulator support and scripting capabilities, but may be less accessible for casual users.