This site is about recreating gaming and computing hardware from the past in modern programmable devices, known as FPGAs. An FPGA contains a very large array of logic which can be configured by the user to perform just about any imaginable logic function.

They save all the hassle of making your own custom IC, and are a lot less time consuming than wiring up 100,000s of standard logic parts. In modern devices we can fit complete systems, including processors, and they are cheap enough to allow mass production.

It’s not emulation, it’s recreation…. and it’s open source.

✓ No Emulation

✓ No Compromise

The Replay Board

The Replay board was designed as a low cost universal development board for running the
*cores provided here. It was time consuming to port the designs to 3rd party reference boards,
many of which had features we didn’t need. The board provides a high quality base platform,
which can be expanded with various daughter boards for specific applications.
One currently in pre-production final testing is the 68060 Daughter Board.
*FPU & MMU maybe or and is Hardware/Software dependant.
A hardware wrapper and flexible firmware support for using cores on this board is provided,
see the Replay Framework page for details. (Currently under redesign).
*Cores for example might include, AmigaOS3.1-3.9 / AtariTOS1-4 or Apple][+/ ZX Spectrum etc.

The Daughter Board

The 68K Daughter board provides a socket for an optional 68060 CPU and expands the Replay
with a second SD card slot, *Ethernet, *USB, and 256MB local/fastram for the 060 plus a real time
clock. It has a Floppy controller, a Midi interface and an Audio in facility for recording/sampling
etc. The Midi interface supports both Midi in and out for synthesizers, sequencers etc.
The CPU can also support a fan if required for higher clock frequencies etc.
The Daughterboard is also designed to be used with other Core’s and Operating systems.
* Record & Sampling will be driver dependent when available on applicable Cores.
It has a 24-bit 96KHz stereo ADC.
* Ethernet consists of a 100Mbit controller. It also has a dual-port USB 2.0/Hi-Speed host controller.


Amedia Computer (Europe) CBM Stuff / Jim Drew (USA).

Recommended Parts

Here’s a list of recommended parts and where to get them. Unfortunately the Replay board is out of stock and discontinued, but fear not, the Replay 2 board is in the making and will hopefully be ready Q1 2018. (This version will also include USB Ports for HID Keyboards & Mice).


ATX Power Supply

ATX Power Adaptor

(No daughter board)

Dual Molex Power Splitter

ATX Power Adaptor

68060 Daughter Board

FPGA Replay Board

Mini-ITX Cases
(More Coming soon)

Unboxing and Review

Amiga RTG Test


Tiny size of 140x100mm, fits any mini-ITX cabinet.


Video output buffered by line driver with programmable filter. Option for SVHS/Composite video out using dedicated coder.


Expansion slot for JAMMA expansion board, MC68060+Ethernet board, etc.


Large Xilinx FPGA (1.6M Gates).


ARM System controller.


64 MB DDR2 DRAM. 48MegXtraRam+16MegBase ram.


High quality video output including DVI and analogue output.


3 channel programmable clock generator – can generate exact base clocks for PAL/NTSC Amiga for example.


Six layer PCB for good signal integrity and stability.


SD slot, DVI out, USB*, PS/2 and serial connectors.


Wolfson HI-FI quality audio DAC.


*The Internal USB connection is for connection to a host PC only.

Cores for your FPGA Replay

Although this project started out for recreating arcade games, I wondered back in 2003 if it was possible to implement a complete home computer system. The available FPGAs were much smaller in those days, but a complete VIC20 still fit.

Now we have a large number of platforms ported, including 16bit systems such as the Amiga and Atari ST.

The focus is always on implementing the original hardware as accurately as possible, but optional improvements are available too, such as a higher speed CPU, and in the Amiga case more Chip ram, RTG graphics, and modern sound with AHI support.

The content is provided “as is” without any guarantees and for educational use only. Use it at your own risk! By accessing the files here, you agree to check the individual licenses found in these files and use them accordingly (or don’t use them at all). You can get more details on these downloads on the forum. If you can’t accept this, please don’t download anything.

Featured Cores

The Amiga was based on the Motorola 68000 CPU and was sold by Commodore between 1985 and 1994. Its advanced graphics and sound made it popular for gaming and video production.

The Commodore 64 is a computer that was manufactured by Commodore between 1982 and 1994. It was very popular during the 80’s and early 90’s.

The latest firmware for your FPGA Replay. Always make sure you are up to date before reporting problems, thank you.

Galaga is a Japanese shoot-’em-up arcade game developed and published by Namco Japan and by Midway in North America in 1981. It is the sequel to 1979’s Galaxian.

The VIC-20 is an 8-bit home computer that was sold by Commodore The VIC-20 was announced in 1980. The VIC-20 was the first computer of any description to sell one million units.

The featured cores are just a small sample of what the Replay has to offer. A range of additional arcade and home computer cores are available and even more in development.


The news archive is here.



Over the years there has been a lot of frustration about the lack of Replay boards. The main issue was the lack of quality control on components from China which caused a lot of rework effort. In retrospect, we should probably have thrown these away and built new...

ALICE decap and imaged

ALICE decap and imaged

We commissioned the decap and scanning of Alice, probably the most important custom chip in the Amiga. Thanks to John Hertell for the device, and to John McMaster for the decap and scan. Here is the image data in full :...

Replay 68060 daughterboard

Replay 68060 daughterboard

The layout for the Replay 68060 board is complete and has been sent for manufacture. It adds 256MB of local RAM, USB, Ethernet, RTC as well as additional Midi and LED IO connectors. The picture below is a quick mock-up to see if the components actually fit :)...


Core Updates

The core news archive is here.

Acorn Electron Core

Acorn Electron Core

A little over 34 years ago, Acorn Computers Ltd released a budget version of the BBC Micro, the Acorn Electron. For a time it was apparently the best selling Micro in the United Kingdom, although in more recent years the Electron seems to be...

New Amiga Core

New Amiga Core

A new Amiga core was just released with a fix on the RTG interrupt + new RTG driver that handle the interrupt correctly. Download: core.

Amiga AGA core stable release

Amiga AGA core stable release

I've released a new version of the Amiga core ( New features : 48M XRAM mapped as Chip and all chipset DMA pointers support 64M addressing (optionally enabled in OSD / .ini file) CPU cache stable - 2 way I + D with full snoop. ~16000 AIBB...


Report a bug to our bugtracker

We strive to and take pride in making our cores to most accurate on the market. Help us out by reporting your issues. Thank you!