Fuji Concepts

Products

Two emulators, two platforms, one mission: faithful Atari 8-bit emulation.

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Fuji-Foundation

Classic Atari 8-bit emulator for macOS

Metal-accelerated rendering pipeline
25 machine configurations, 160+ cartridge types
Built-in CPU monitor and debugger
Universal binary — Apple Silicon native

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Fuji-Vision

Atari emulation for Apple Vision Pro

Spatial display with visibility compositor
Bluetooth game controller support
10 save state slots with persistence
Built for visionOS from the ground up

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Core Capabilities

Built on decades of emulation research, running on today's hardware.

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Metal Rendering

GPU-accelerated display pipeline for smooth, tear-free output on every frame.

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Cycle-Accurate

Faithful hardware emulation — every scanline, every cycle, every quirk.

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160+ Cartridges

Every known bank-switching scheme supported, from 8 KB to megabyte flash carts.

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Built-in ROMs

Altirra OS and BASIC ROMs included — no ROM files needed to get started.

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Expansion Hardware

SIDE2, Ultimate 1MB, VBXE, BlackBox, MIO — real hardware, fully emulated.

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Full Debugger

Built-in CPU monitor with breakpoints, hardware register viewer, and memory inspection.

Documentation

Comprehensive guides to get you up and running.

Fuji-Foundation Docs

Installation, configuration, hardware emulation, and developer tools for macOS.

Fuji-Vision Docs

Getting started, spatial display, controller setup, and media management for visionOS.