Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc
BizHawk is a multi-system emulator written in C#
SDL library for Android, including several games.
UNIX-like reverse engineering framework and command-line toolset
Cross-platform database framework developed by WeChat
Capstone disassembly/disassembler framework
Multiplatform data-driven test automation execution services
Distributed Network emulation tool for high rate packet