Mega65
Paul Gardner-Stephen is working on a FPGA version of the Commodore C65. His goal is to make an 8-bit computer for the 21st century. Most recent updates: Automatic 4502 / 6502 Instruction set switching.
geoRAM
GGLabs reversed engineered the Berkely softworks geoRAM. The schematics and all files are now available to build one yourself.
C64 FM Radio v2.0
Listen to your favourite radio stations on your Commodore C64. Timo Voutilainen developed a system that uses a DA5807 FM Radio module which is connected to the user-port of the Commodore C64. Changes in this version: Channel pre-set list, loop through channels, I2C, RTC and a RDS decoder.
SD-BOX v1.20
The SD-BOX is a cartridge with an SD card interface for the Commodore C64. The cartridge has many functions for the disk drive and the Datassette. Recent updates: Improvements for SD2IEC, delete, cassette, manual, tape protection, C128 mode, copy menu and the loader for Exos v3 / FC3.
C64 Robot Guitar
Steve Smit has made a robotic guitar using 24 servo motors that are controlled by a Arduino Mega that is connected to the user-port of the Commodore C64.
MindFlareRetro - C64 S-Video Adapter Box
MindFlareRetro made a video about how to make an adapter box with s-video to connect a Commodore C64 to a LCD screen.
Checkmate A1500 Plus
The Checkmate A1500 was a desktop upgrade to the Amiga 500. Stephen Jones is now designing a new version of the Checkmate A1500.
External Gotek adaptor
Arananet-net made a custom adapter for the Gotek. Features: 3 buttons, USB port, screen (segments, LCD or OLED), loudspeaker connection and LED indicators.
Universal C64 cartridge - 256 KB ROM
Engraved64 developed a new universal cartridge for the Commodore C64. The cartridge has a 256 KB ROM. In the ROM you can store your favourite programs and a start menu.
VIC-2000 Expander
Radical Brad is working on a modern expansion for the Commodore VIC-20. The features are VGA video, 4096 colours, 16 Megabytes of fast audio / video memory, a blitter system (sprites) and 4 channels of 8 bit sound.
Internal SD2IEC
Tynemouth Software has written a blog on how to install a SD2IEC device internally in a Commodore C64c.
A3660 CPU board
John Hertell has made a replica of the Amiga A3660 CPU board. All the files for making a CPU board will be open source. The working CPU board will be demonstrated at Amiga32 meeting in Neuss.
SDHost-64
Luigi Di Fraia is working on his project SDHost-64. He now demonstrates loading a program from a SD-card via the user-port into the Commodore C64.
THE64 - Mini
Retro Games Ltd. has announced THEC64 Mini. The features are: HDMI, USB, Built-in games such as California Games, Speedball 2: Brutal Deluxe, Paradroid and Impossible Mission.
Amiga CD 1200
Andy Spencer tells us about the Commodore Amiga CD 1200, a prototype of a peripheral for the Amiga 1200 that would allow it to play Amiga CD32 games.
Keyman64 v1.6
Keyman64 is an hardware expansion for the keyboard on your Commodore C64. With Keyman64 you can assign actions to key combinations. These action could be a series of keystrokes or hardware switches. The possibilities could be: assign commands to (function) keys, do a reset, switching a Kernal, switch on/off LED's etc. The configuration or firmware update is possible via a USB connection.
Teensy64
Frank Bösing is working on a Commodore C64 emulator with the Teensy 3.6. The Features are: IEC Bus, ILI9341 SPI display, USB keyboard, reSID, a simple disk drive emulation and joystick support. The latest changes are: Added a VGA output.
Wicher CD32
The Retro 7-bit web page announced the Wicher CD32. This expansion card for the Amiga CD32 has the following features: 8MB RAM, IDE controller and a clock port.
Arduino Amiga FD reader/writer v2.0
A new version is now available for the Arduino Amiga Floppy Disk reader / writer system of Robert Smith. Changes in this version: Support for writing diskettes and improvements for reading diskettes.
ADF-Drive v0.621
ADF-Drive is an enhancement for the ADF-Copy system. With ADF-Drive it is possible to access the diskette data via the MTP protocol. The MTP protocol is supported by Windows, MacOS, Linux and AmigaOS.
VR64
Jim 64 is working on a VR goggles for the commodore 64. He uses two almost the same images of 152X200 pixels. If the object on the screens are in slightly different positions you will experience a 3D effect.

Street Defender - VR64 game
Uni Gen Converter
Segasonicfan developed a converter that makes it possible to use a Sega Genesis controller on a Commodore 64, Amiga or Atari computer. Features: Adjustable auto-fire, zero lag and low power consumption.
New C64c cases
The new Commodore C64 cases are now available. The package consists of a C64c case, logo, set of screws, rubber feet and a Commodore cardboard box. The available colours are breadbin grey, classic beige, SX-64 style and retro black.
Bart Venneker - C64 cartridge (Dutch)
Bart Venneker has made a video about building a cartridge for the Commodore C64. This time he shows how make the case and put a program inside the cartridge.
FlashFloppy v0.6a - Gotek
Keir Fraser developed new firmware for the Gotek hardware. This firmware is open source and is an alternative for the HcX firmware. With a Gotek you can replace your floppy disk drive in your Amiga with an USB drive. Changes in this version: Improvements for PC Floppy Interface and the OLED screen.
ADF-Copy
ADF-Copy is a small device with a Teensy 3.2. This device connects to USB and a 3,5" PC floppy drive. This device makes it possible to read and write ADF's from or to a real Amiga diskette.
FM-YAM - C64
FM-YAM is a new Sound Expander compatible cartridge for the Commodore C64. Features: YM3812 (or YM3526), Audio-in (mini-jack, FM / Audio-in mix-out (mini-jack) and a 3D printed black case.
Bart Venneker - C64 cartridge (Dutch)
Bart Venneker has made a video about building a cartridge for the Commodore C64. He shows how to design the circuit board and adds an extra connector for an Arduino.
MNT VA2000 - Firmware v1.7
Lukas F. Hartmann is developing a graphics card for the Amiga 2000. He build an adaptor card with a FPGA that fits into a Zorro II slot. Changes in this version: It is now possible to boot from the SD card.
C64Net Wi-Fi Card
With the C64Net Wi-Fi Card you can connect your Commodore C64, VIC20 or C128 to Wi-Fi. Features: Wi-Fi 802.11bgn, 300 - 9600 Baud, User port, AT-Hayes, support for FTP, IRC, WGET, TELNET, CBMTERM, CONFIGURE, TELNETD64, WEATHER64 and Q-Link!
Bart Venneker - EEPROM programmer (Dutch)
Bart Venneker has made a video about building an EEPROM programmer with an Arduino Mega. With this programmer he makes cartridges for the Commodore C64.
Mega65
Paul Gardner-Stephen is working on a FPGA version of the Commodore C65. His goal is to make an 8-bit computer for the 21st century. Most recent updates: On-screen keyboard display, Fast boot kickstart and ROMs, 1080p 50Hz, Hypervisor boot display and utility menu.
C16 & Plus 4 - 8501 to 6510 CPU conversion
Andy has replaced the 8501 processor in the Commodore 16 and Plus/4 computers to a 6510 CPU, as fitted to the Commodore 64. The conversion is made possible with a small circuit board and a modified Kernal ROM. Conversion kits will be soon available.
Jan Beta - C64 power supply
Jan Beta made a video about building a power supply for the Commodore C64. He uses a transformer for the 9 VAC and a standard power block for the 5 VDC.
Jakadapter - Firmware v1.3
With the Jakadapter you can connect two Atari-style joysticks to USB. The changes in the new firmware are: An update for the paddle readout algorithm, now with more filtering and accuracy. It works very stable also with worn paddles.
Vampire V4
The Apollo Team has announced the Vampire V4. The features are: Amiga 1000, 500, 2000, CDTV, 600 and 1200, Standalone system, 68080 CPU core, SAGA, 512MB DDR3, FastIDE, Digital Video 720p@60Hz, Dual Kickstart-Flashrom and MicroSD storage.
PET 2001 clone
Glen Kleinschmidt is working on a clone of a CBM PET-2001. The specifications are: 32 KiB RAM, BASIC#2, WDC65C02N (CPU), WDC65C21N (PIA) and a WDC65C22N (VIA).
Arduino Amiga diskette reader
Robert Smith wanted to read his old diskettes from his Amiga 500+. His Amiga did not work anymore so he decided to find another solution. He made a system with an PC disk drive and a Arduino to read his old Amiga diskettes.
FlashFloppy - Gotek
Keir Fraser developed new firmware for the Gotek hardware. This firmware is open source and an alternative for the HcX firmware. With a Gotek you can replace your floppy disk drive in your Amiga with an USB drive.
Jan Beta - NOS C64 PCB
Jan Beta made a video about a unused (NOS) printed circuit board for the Commodore C64.
Versa64Cart
Bwack is testing his new Versa64Cart. The Versa64cart is a printed circuit board for a 27512 EPROM with many configuration options.
Retrohax - RGB2S/C
On the Retrohax web page you can see how to build an RGB to S-video / Composite converter for your Amiga, Atari ST or Amstrad computer. The converter is based on the AD724 chip. You can also buy the finished product from Retrohax.
A600/1200 USB keyboard
Tynemouth Software has made an adapter to connect an Amiga 600/1200 keyboard to USB. The set also includes a cable for the LEDs and an USB cable.
The Ultimate-64
Gideon Zweijtzer announced the Ultimate-64. This circuit board will replace the original circuit board in the Commodore C64. Features: FPGA SID / real SID, HDMI PAL/NTSC, cartridge, tape, user, serial, video and joystick ports. The price will be around 200 Euro.
Multi-EditorROM - CBM/PET
Steve Gray started a new project for the CBM/PET computers. The Multi-EditorROM is a adapter board that allow you to select any one of 16 different 4K Editor ROMs on a Commodore PET/CBM machine. The Editor ROM is responsible for all screen, keyboard, clock and IRQ processing on BASIC4 PET/CBM computers.
A-EON Amiga X5000
Jeremy Reimer wrote a blog about the Amiga X5000 from A-EON. The Amiga X5000 is powered by a custom PowerPC motherboard with a dual-core Freescale CPU @ 2.5GHz. The system can run AmigaOS, MorphOS or Linux.
Ultimate1541 Sid Remote v1.1
With Ultimate1541 Sid Remote you can send SID music to the Commodore C64 from a PC. The program is developed by L.A.Style and tested by hedning.
Amiga 1012
S Gust designed a new front for the Commodore Amiga A1011 floppy drive. It allows you to mount 2 slim line floppy drives like the NEC FD 3238T or TEAC FD005 inside a A1011 case.

More information about the necessary electronics.
SuperCPU - VIC20
Kakemoms is working on a SuperCPU for the Commodore VIC20. The features are: 22MHz, 65C02 core, 1MByte RAM, USB, SD-card and VGA. At the moment the PCB layout is almost finished.
Jan Beta - Retrobright A1200
Jan Beta has made a video about using Retrobright on an Amiga 1200.