
Description: FCEUX is a free, open source emulator for playing and developing 8-bit Nintendo Entertainment System (NES) games. It supports playing NES ROM images and NES game development with an integrated assembler, disassembler, debugger, and more.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Nestopia is an open source Nintendo Entertainment System (NES) emulator programmed in the C++ language. It accurately replicates the behavior of the original NES hardware, enabling you to play classic NES games on modern computers and devices.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API