5DO

Relive the 3DO library with a modern, source-available emulator built in C#.

Version 1.0.0-rc.1 Free donationware
Download x64 Donate

A modern 3DO emulator built in C#

5DO is a pure C# / .NET emulator for the 3DO Interactive Multiplayer. It pairs a cross-platform Avalonia desktop shell and game library with OpenGL, Vulkan, and software presentation paths, save states, input recording, screenshots, and a searchable library of ISO, BIN, CUE+BIN, and CHD disc images.

The project is donationware: download it, use every feature for free, and support future development with an optional donation. Donations are voluntary and do not purchase a license or commercial rights.

5DO does not include BIOS ROMs or game images. You must provide legally obtained files for both.

At a Glance

CapabilityWhat it does
Desktop library Scans game folders, shows cover art, and filters by name, game ID, or path
Presentation backends OpenGL, Vulkan, and CPU rendering with accurate, nearest, sharp-bilinear, CRT, xBR, FSR, and HQx filters
Save states Ten numbered slots with previews, metadata, and Brotli-compressed state sections
Input and capture Keyboard and gamepad bindings, replay scripts, screenshots, and fullscreen play
Diagnostics In-app log viewer, compatibility fixes, and optional warning/error reports

Donation recognition

The desktop app can remember the email address you use on PureLogicCode.com and check whether a completed donation has been recorded for 5DO. The address is stored only on your computer and is sent to the donation API only when you ask the app to check it. Once a donation is confirmed, the donation banner is hidden.

See the 5DO repository for source code, release notes, and documentation.

Download 5DO

5DO is donationware. Download and use it for free, then support development with an optional donation.

Download x64 Donate

No purchase required. Donations are optional.

Frequently Asked Questions

Checkout is handled by Stripe and your download links are emailed instantly and also stored in your account purchase history.

Our desktop products run on Windows 10 and Windows 11. Check the product description above for any product-specific requirements.

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