Nestopia

Current version:	1.46
Active:	Yes
OS:	Multi-platform
Authors:	Martin Freij, rdanbrook
Official website:	0ldsk00l.ca
Source code:	Github

Nestopia is a cycle-accurate NES emulator. Unlike most cycle-accurate emulators, Nestopia allows graphical enhancements such as texture scaling and TV filters, as well as netplay support. It's one of the most popular and most compatible emulators around. It is also available as a libretro core for RetroArch.

Downloads

• Nestopia UE Stable Builds
• Nestopia UE Dev Builds
• Original Nestopia

Review

Windows XP users report problems with vsync and input lag. These issues do not exist in the Linux or RetroArch ports.

NetPlay

Uses Kaillera

Review
PROS	Supports up to 4 player simultaneous (Kaillera) It supports a great number of mappers Excellent connectivity, sometimes informally compared to GGPO's netcode in efficiency Basic chat support.
CONS	Requires port forwarding The highest ping that it tolerates is around the 150ms mark, after which it starts to desynch very often It's slightly prone to freezing/crashing/BSOD, but to a much lesser extent than the multiplayer client Everyone needs to have the exact same ROM version and save file. Or else, it'll desynch or outright not work. Chat box is an eyesore. You need to constantly switch focus back and forth between chat and emulator window in order to chat. You will hear no sound while the window is unfocused.