Is it possible to render on top of a game?

[LegendaryB]

For example:
Native AOT build -> hooking DirectX -> drawing via MewUI?

[richard-sim]

I can confirm it's possible. After being really impressed with MewUI for a desktop app I made recently, I decided to try adding MewUI to my cross-platform NativeAOT DirectX 12/Vulkan/Metal game. I'm using it for both the front-end and in-game UI. It does require some scaffolding to get working, since embedding in a game engine is far from its design goals, but it is entirely plausible. I've only had it running for a few days so far, so I can't say whether it's a good idea yet, as I've only done minimal testing of performance - but so far, so good.