Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc, PowerPC, RiscV, S390x, TriCore, X86)

Dolphin is a GameCube / Wii emulator, allowing you to play games for these two platforms on PC with improvements.

Renode - Antmicro's open source simulation and virtual development framework for complex embedded systems

EMUX Firmware Emulation Framework (formerly ARMX)

Intel x86 bare metal hypervisor for researching snapshot fuzzing ideas.

A research kernel and hypervisor attempting to get fully deterministic emulation with minimum performance cost

Platform for Architecture-Neutral Dynamic Analysis

A series of posts about QEMU internals:

Official QEMU mirror. Please see https://www.qemu.org/contribute/ for how to submit changes to QEMU. Pull Requests are ignored. Please only use release tarballs from the QEMU website.

Tiny cute emulator plugin for IDA based on unicorn.

Emulation and Feedback Fuzzing of Firmware with Memory Sanitization

Windows kernel and user mode emulation.

A True Instrumentable Binary Emulation Framework