Welcome to m64p (mupen64plus + GLideN64 + a GUI)
The links to download binary builds for Windows and Linux are in the sidebar.
m64p uses mupen64plus-gui, a brand new mupen64plus frontend written in Qt5. It supports all thing things you’d expect from a frontend (savestate management, pausing, screenshots, etc..).
m64p comes bundled with GLideN64 for the graphics plugin. It should give you the best out-of-the-box experience available for N64 gaming.
Starting with a fresh config
If you’ve ever used any version of mupen64plus before, you might have a configuration file saved on your computer. I suggest starting with a fresh config if this is your first time here. Go to Settings->Core and Plugin Settings. At the bottom click on Reset All Settings.
This is likely the most compatible N64 emulator you’re going to come across. It can play games like Resident Evil 2, Rogue Squadron, Pokemon Snap, and World Driver Championship “out-of-the-box” (without the need to fiddle with settings, plugins or anything of the sort).
Give it a try, you won’t be disappointed. There is no installer, just unzip and play!
If you run into any issues, I would love to hear about it here