Fast PlayStation 1 emulator for x86-64/AArch32/AArch64
Virtual amiibo (amiibo emulation) system for Nintendo Switch
RetroArch is a frontend for emulators, game engines and media players.
Game Boy and Game Boy Color emulator written in C
Original Xbox Emulator for Windows, macOS, and Linux
A fast usermode x86 and x86-64 emulator for Arm64
Researching Wii U emulation
DOSBox Staging is a modern continuation of DOSBox
Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc
A multi-purpose emulation framework
Try Customization Android-x86 OS is Faster, lighter than Emulator with
An experimental Symbian OS emulator
AndroidAuto headunit emulator
DS emulator, sorta
xBRZ: "Scale by rules" - high quality image upscaling filter by Zenju
Qt-based Nintendo Entertaiment System emulator and NSF/NSF2/NSFe Music
BizHawk is a multi-system emulator written in C#
Appliances of free/open source operating systems for VirtualBox
Third-party TI-84 Plus CE / TI-83 Premium CE emulator
a GUI for virtual machines using QEMU as the backend
Cemu is a Wii U emulator