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Nestopia (Richard Bannister) vs ares: catalog facts
Nestopia (Richard Bannister)	ares
Free Free download; the optional Emulator Enhancer add-on is shareware.	Free The software is free under its open-source licence. Hosting, hardware and external…
macOS	Windows, macOS, Linux
Cycle-exact NES emulation for timing-sensitive games Supports 201 mappers and the Famicom Disk System	It descends from higan and bsnes and deliberately trades performance for clear, accurate cores across a long list…
Gamepad and full screen support require the paid Emulator Enhancer add-on macOS only	The accuracy focus means it needs more CPU than fast emulators, and the interface is plain.
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: BSD-3-Clause
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.