If you need the overlay enabled, you can do so by: NOTE: The overlay is automatically disabled for 'Software' app types. Details are provided on the platforms page. MacOS: Overlay support for 10.15 (Catalina) requires adding entitlements to your build configuration.
The overlay will not be active in software-rasterized games. The overlay supports games that use DirectX 7 - 12, OpenGL, Metal, and Vulkan. As such you'll need to make sure to call SteamAPI_Init prior to initializing the OpenGL/D3D device, otherwise it won't be able to hook the device creation. RequirementsYour game does not need to do anything special for the overlay to work, it automatically hooks into any game launched from Steam! While in development and running your game in a debugger, the overlay is loaded when you call SteamAPI_Init. The default key for a user to access the overlay while in a game is SHIFT+TAB, but they can change it in their Steam->Settings dialog. It lets the user access the friends list, web browser, chat, and in-game DLC purchasing. OverviewThe Steam overlay is a piece of the Steam user interface that can be activated over the top of almost any game launched through Steam.
