Joyswap - C64
Jeroen developed a new device for the Commodore C64. With this device it is possible to swap the joystick ports of the C64. The Joyswap is build inside the C64c and swaps the joystick ports when you hold down the Restore key for 3 seconds. It is also possible to use the device as a Kernal switcher.
RetroCengo - Amiga 500 FastRam expansions
RetroCengo made a video about an Amiga 500 FastRam expansion with a Gary adaptor and 2.5 MB FastRam.
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: A keyboard prototype.
IECHost
Luigi Di Fraia has added more functionality to his IECHost device. With this device you can connect a Commodore IEC disk drive via USB to a PC. This time he added 40-tracks support.
C256 Foenix
Stefany Allaire is working on a successor for the Commodore C64/128. Recent changes: The video output (VGA/DVI) is now working.
VIC-20 Full Motion Video
Is it possible to have Full Motion Video on a VIC-20. Well... with the proper hardware and some highly optimized code... YES!
Bwack - C64 Saver Add-On
Bwack made another video about developing the Commodore C64 Saver as an open source project. He now developed an Add-On board to the C64 Saver.
RetroManCave - Amiga Mini DJ Set
RetroManCave made a video about an Amiga Mini DJ Set.
Re-Amiga 1200
John Hertell is working on reproducing the printed circuit board for the Amiga 1200. He used a scan of a real Amiga 1200 motherboard to create the files for making new motherboards.
MiniGANGCART - C64
The miniGANGCART is a new cartridge for the Commodore C64. The features are: Fast load for 1541, 1571, 1581 and SD2IEC, Final III cartridge, 8 Mbit EPROM, diagnostics tools and games.
Tynemouth Software - PET replacement keyboards
Tynemouth Software has developed a replacement keyboard for the Commodore PET computers. The replacement keyboards are available for the "graphics" keyboard and the "chicklet" keyboard. The keyboard is now also available with a black circuit board.
C256 Foenix
Stefany Allaire is working on a successor for the Commodore C64/128. At the moment the development of the motherboard has been completed.
Commodore 128 Bass guitar
Stegi 3178 started a project to make a bass guitar from a Commodore C128.
Steampunk C64 Laptop
Bad Dog Designs made a steampunk version of the Commodore C64. The features are: An oak case with a Commodore C64, 12" LCD colour screen, 4 loudspeakers and a SD2IEC.
Jan Derogee - Tommygun
With the use of MDF and 3D printed parts Jan has converted his Stack light rifle into a very realistic looking Tommygun. To carry this lightgun in style, he also made a suitcase. In the appropriate 1920's style.
The Andy Warhol Museum Amiga Exhibit
Iontank made a museum exhibit to show the original Andy Warhol art that was made on an Amiga 1000 computer. The inside of the Amiga 1000 has been replaced with a new solid state PC, but the Amiga can be used by the museum visitors.
Commodore Pet Tape Recovery
Galb2x2 made a video about recovering a cassette tape for the Commodore PET computer. He uses a C2N Datasette and an Arduino.
C64 / Drive controller
Oe7Twj developed three projects for the Commodore C64 and disk drive. The projects are all made with the help of an Arduino: Track display, Floppy controller and a C64 controller.
Vampire / Apollo - Gold 2.10
The Vampire turbo card uses the Apollo FPGA-core to emulate the 68000 CPU and the SAGA graphics chip. The changes for Apollo are: Improvements for IDE speeds, SBCD, ChipRAM, CIA, VControl, VampireSN, SDNet and V2ExpEth.
SID emulation - Teensy 3.6
Petros Kokotis developed a SID replacement using a Teensy 3.6. This emulator uses the Frank Boesing ReSID library to do emulation of the SID.
ZZ9000 - Amiga
The ZZ9000 is the successor to the VA2000 Amiga graphics card. The features are: 1920x1080 pixels, Dual 666MHz ARM Cortex A9 coprocessors (jpeg / MP3), 1GB DDR3 RAM, Ethernet and a SD Card.
Cengomania X - Amiga 3000 - Gotek
Cengomania X made a video about adding a Oled Gotek drive to his Amiga 3000.
SID XMC + MIDI
SID XMC + MIDI is a new hardware project for the Commodore C64. The features are: 3 channel 12bit 64MHz PDM, 4bit master volume and support for paddles and MIDI.
KA 21 - Gayle reset
The KA 21 is a hardware solution for Gayle PCMCIA reset bug. With a standard Amiga 1200 the PCMCIA does not get a reset signal if a system reset is active. The KA 21 solves this problem.
Daniel Renner - Greisi power supply
Daniel Renner made a video about building a Greisi power supply for the Commodore C64.
TFW8b Value - VIC20 MAX RAM Cartridge
Tynemouth Software has developed a new RAM cartridge for the Commodore VIC20. The configuration is possible via a menu with 3, 8, 16, 24, 27, 32 or 35 KByte of RAM.
Retr-O-Mat - Amiga 2500
Retr-O-Mat made a video about a Amiga 2500 with many additions, and one of them is a Vampire turbo-card.
Dan Wood - Amiga CD32 & Terrible Fire 328
Dan Wood talks about the Terrible Fire 328 expansion for the Commodore Amiga CD32 console which adds extra RAM and an IDE interface.
KC64WIFI
KC64WIFI is a C64 user-port modem up to 9600 baud based on a NodeMCU module with custom code to support Hayes commands. The KC64WIFI also has a reset switch for the modem and the C64.
VectrexRoli - C128D
VectrexRoli made a video about the Commodore C128D. He show his modifications and how to connect the 1541 Ultimate II.
Bwack - C64 Power-supply
Bwack made a video about building an power-supply for the Commodore C64. This power-supply also has a digital readout for the voltage and the current.
That 3D Print Guy - C64 Joystick
That 3D Print Guy made a video about the joystick he is building for the Commodore C64. The plans will be available soon.
Daniel Renner - SD2IEC remote display
Daniel Renner made a video about a SD2IEC device with a remote display modification.
C256 Foenix
Stefany Allaire is working on a successor for the Commodore C64/128. The specifications are: CPU: 65C816 @ 14Mhz, 512 KBytes (code), 1 MByte (video), 640 x 480 / 256 colours, DVI, Sprites, Blitter, Sound (6581 / YM3812), Midi, Joystick, RS-232, Serial, 3.5" Disk drive, Cartridge and PS2 mouse & keyboard.
Bwack - C64 Saver
Bwack made a video about developing the Commodore C64 Saver as an open source project.
Obscura
Obscura is an Arduino compatible 8-bit synthesizer that allows you to create NES, C64 and Amiga-style chiptune music by simply connecting a MIDI device.
HxC floppy emulator - v2.1.11.1
For the HxC floppy emulator is new firmware available. The HxC floppy emulator is a replacement of a 3.5 inch disk-drive in for example an Amiga or a Atari ST. Recent changes in the firmware: Improvements for H8D Heathkit, Kryoflux Stream Loader & Stream analyzer, NSI Northstar, Flux Stream and ADF Writer.
Tynemouth Software - PET replacement keyboards
Tynemouth Software has developed a replacement keyboard for the Commodore PET computers. The replacement keyboards are available for the "graphics" keyboard and the "chicklet" keyboard.
Iz8dwf - PET RAM/ROM board
Iz8dwf made a video of the development of his Commodore PET RAM/ROM replacement board. The specifications are: 2 x ROM (24Kbytes) and 2 x 4K ($F000 - $FFFF).
Jan Derogee - Linear clock
After developing hardware for the Commodore computers (1541-III, Cassiopei and the Cassiopei II) he decided to develop a linear clock.
Pi1541
Steve White developed a replacement for the Commodore 1541 disk-drive. The Pi1541 emulates the 6502 and the two 6522s. The components used are: The Raspberry Pi 3, a I2C Bi-Directional Logic Level Converter and a Micro SD card.
AmigaLove - C64 to Raspberry Pi 3
Mattsoft replaced the motherboard of a Commodore C64 with an Raspberry Pi 3. The parts he used are: Raspberry Pi 3B, Micro SD card, Keyrah v2, power supply and USB & HDMI connectors.
Jan Beta - Tapuino Reloaded
Jan Beta has made a video about the Tapuino Reloaded. This Datassette replacement is developed by Edu Arana and can be used with the C64, C16, and the VIC-20.
Brian Bagnall - Commodore: The Final Years
Brian Bagnall started a Kickstarter campaign for his third book about the history of Commodore. In this book the story of the Commodore computer company and the employees who created some of the most iconic computers of the 80s and 90s.
Wicher Installer - software update
There is new software available for the Wicher. The Wicher turbo card has been designed for installation inside Amiga the A500 / A500+ computer. Changes in this version: Support for larger SD cards (> 4 GByte).
Tynemouth Software - VIC-20 diagnostic system
Tynemouth Software has developed a diagnose system to test a Commodore VIC-20. You can choose between a standard diagnostic cartridge or a combination of a diagnostic cartridge and a 27K or 32K ROM/RAM board.
C128 RM
TheDuckSun is working on a C128 that fits into a C64 case. The proto type has the following features: VIC/VDC switch, 8 bit colour RAM, 6-36 VDC, Dual-SID, etc. You can follow the progress on Forum64.

Official web page for the C128 RM.
Amiga X
Thomas Mayer Foss and Hans Henry Jegtvolden are working on a new Amiga. The concept is an Amiga 1200 style keyboard, a power supply with all the hardware inside and a modern Amiga tank mouse.
Daniel Renner - C64 modulator replacement
Daniel Renner made a video about a replacement for the Commodore C64 modulator. This replacement modulator is a kit and is developed on Forum64.