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Build Yer Own

From the ground up, partner

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Emulators

Run C64 software on modern hardware — fast, free, and surprisingly accurate.

VICE is the community standard — highly accurate, actively maintained, and runs on Windows, macOS, and Linux. If you're just getting started, download VICE and point it at a disk image. You're off to the races in five minutes.

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FPGA Recreation

Hardware-accurate recreation in a modern programmable chip. The middle ground between emulation and real silicon.

The MiSTer is a DE10-Nano FPGA board that runs cores for dozens of retro systems including the C64. It's a hobbyist platform — some assembly required, but the community support is excellent. The Ultimate 64 is a purpose-built C64 FPGA board you can drop into an original shell, with HDMI out, built-in 1541 drive emulation, and REU support.

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Build From Scratch

Modern reproduction boards let you build a fully functional C64 from new parts. It's a serious project — and the result is a machine you built yourself.

The Board — C64 Reloaded MK2. Individual Computers makes the most mature reproduction mainboard available. It accepts original chips (SID, VIC-II, CIA, CPU) with modern sockets, has onboard clock generation, built-in reset and reset-with-cartridge buttons, and a modern voltage regulator that won't melt down. This is the baseline for a from-scratch build.

Chips — what you need. You'll need: a 6510 CPU, MOS 6569 VIC-II (PAL) or 6567 (NTSC), one or two SID chips (6581 or 8580), and two 6526 CIA chips. These come from donor machines or eBay. Alternatively, use modern replacements: FPGASID or ARMSID for SID; STE'816 for the CPU; modern CIA clones exist too.

The Case. Original C64 cases are available used. Reproduction cases are produced periodically by community members — watch the forums. 3D-printable case files also exist for those with access to a printer. Some builders go bare-board or use a custom acrylic enclosure.

Power Supply. Do not use an original PSU on a new build — they fail dangerously. Use a modern replacement from the start: Ray Carlsen's design, or commercial units from Electroware, Individual Computers, or Commodore4Ever. A stable +5V and +9V AC supply is essential.

Skills required. Through-hole soldering (chips are socketed, but you'll still need a decent iron and flux), basic component identification, and patience. The Reloaded MK2 includes detailed documentation. Budget extra time to track down and seat chips correctly — bending a VIC-II pin on first install is a rite of passage.

Community PCBs. Beyond the Reloaded, hobbyists have produced faithful PCB reproductions of the original C64 boards — short board, long board, and C64C variants. These are closer to the original circuit but require more sourcing effort. Find them through lemon64.com, the Denial forum, and various GitHub repos.

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First Setup Checklist

Whether it's your first C64 or your tenth, here's what to sort before you fire it up.

Original hardware — before power-on:

  • Test or replace the PSU — no exceptions, do this first
  • Open the case and inspect for corrosion, burn marks, bent pins
  • Check cartridge port and joystick port pins are straight
  • Look for any previous repairs — cold solder joints, missing chips
  • Clean the keyboard contacts with isopropyl alcohol if sticky

Original hardware — first boot:

  • Connect to a monitor via composite or S-Video (avoid RF if possible)
  • Power on — you should see the blue BASIC screen with memory count
  • Type PRINT 2+2 and hit RETURN — should print 4
  • Load a simple test D64 via datasette, 1541, or SD2IEC/1541U2+
  • Test both joystick ports with a known-good stick
  • Listen to the SID — load a SID tune and verify audio

VICE emulator — first setup:

  • Download VICE from vice-project.sourceforge.io
  • Open Settings → Video and set correct aspect ratio for your display
  • Set SID model to 6581 or 8580 depending on preference
  • Set machine region to PAL (most software is PAL-tuned)
  • Map a USB gamepad or joystick to Port 2 (most games use Port 2)
  • Download a D64 from GameBase64 or CSDb and attach it via File → Attach

FPGA / Ultimate 64 — first setup:

  • Install the board in a C64 case or use it standalone with HDMI
  • Flash the latest firmware from ultimate64.com
  • Set SID model in Ultimate menu to match any real SID chips installed
  • Load a disk image from the Ultimate menu — press the button on the cartridge
  • Configure scanlines and aspect ratio in HDMI settings to taste
  • Test REU support if you plan to use GEOS or memory-hungry software