86Box vs Foxol

86Box is a free emulator for x86-based IBM PC systems and compatibles, covering machines from 1981 through PCI-bus systems. It emulates processors from the 8086 through the Pentium with an emphasis on accuracy and supports configurable machines such as the IBM PC 5150 and IBM PS/2 line. Users can select video adapters, sound cards, network adapters, hard-disk controllers, and SCSI adapters. Supported guest systems include MS-DOS, older Windows releases, OS/2, many Linux distributions, BeOS, and NEXTSTEP. MIDI output can use Windows MIDI support, FluidSynth, or emulated Roland synthesizers. 86Box runs on Windows, Linux, and macOS and is released under the GNU General Public License version 2 or later. The project offers stable and experimental builds; experimental versions may be less stable or slower. Most emulation logic runs in one thread, so results depend on host and guest configuration. A BIOS is required. The project recommends manager applications for multiple virtual machines, while its built-in manager is still a preview.

Foxol is an emulator platform for playing classic games across web, mobile, and desktop. It lists support for systems such as Game Boy, Game Boy Color, Game Boy Advance, Nintendo DS, Virtual Boy, WonderSwan, Nintendo 64, Sega Genesis, and PlayStation. Cloud sync lets players continue across devices. Multiplayer options include remote co-op, local multiplayer for up to four players, Link Cable, community-powered Nintendo WFC, and simulated infrared. Gameplay tools include cheats, rewind, save states, and fast forward; users can choose from more than 300 shader presets. Foxol also provides a ROM patcher, save editor, skin builder, and community skin catalog. RetroAchievements features include achievement browsing, live unlock notifications, and per-game challenges; RetroAchievements is an independent third-party service. The free plan costs nothing and allows 20 games, two manual save-state slots and two rotating auto-save slots per game, and 2× fast forward. Foxol Plus costs €3.99 a month or €39.99 a year, with unlimited games and manual save states.