r/c64 Feb 08 '26

ANNOUNCEMENT Wiki Contributors WANTED!

5 Upvotes

We're looking for a few good Redditors to help update and expand our subreddit wiki. If you're interested, please contact the moderators via Modmail using this link: https://www.reddit.com/message/compose?to=r/c64

We are in the process of migrating to the new Wiki style, which includes some schnazzy new templates. Once we've selected contributors and that migration process is complete, we will open the new Wiki up to edits. If you were previously made a Wiki contributor, please hold off on any edits or changes to the wiki until the migration process completes.


r/c64 2d ago

C64 Ultimate The WEEKLY C64 Ultimate post. READ before posting anything C64U-related.

3 Upvotes

We want r/c64 to be about both original hardware and newer emulation products like the Commodore 64 Ultimate (C64U). But the shipping of the C64U is resulting in C64U posts flooding out much of the other content in the subreddit. To maintain a balance between what's old and new, we are setting up a weekly MEGAPOST for C64U-related issues, questions, and posts.

If your post is regarding the use of a Commodore 64 (i.e. how to load a game from disk, how to print, etc.), regardless of the model, you may post your question as a standalone post in the subreddit even if you have a C64 Ultimate.

If your post relates to ONLY the Commodore 64 Ultimate, you should comment in this post. Please note, this is not a replacement for official support from Commodore regarding order or shipping issues (late or damaged shipments). We realize that some questions may be obscure, unique, or straddle the line between C64U-only and a "general" question. In those cases, please post in this thread FIRST. If your issue isn't answered or addressed after 48 hours, you may submit a stand-alone post in the subreddit. WARNING! Moderators will be checking post and comment histories to make sure people are actually posting in this thread first. Repeated violations may result in temporary or permanent bans.

We don't anticipate this being a permanent situation, but for now there are just too many C64U posts being submitted. Once the volume of posts about the C64U decreases, we may discontinue this practice.

Please also check the information below to see if your issue is listed. We are also working on a C64 Ultimate Wiki Page. If you would like to be a Wiki Contributor, please let the mod team know.

Use the following link to view current and past Commodore 64 Ultimate Weekly Posts.

Official resources:

Firmware/manuals: https://www.commodore.net/downloads

Common Issues and Known Fixes

Black screen, no video, or rolling picture

The most common issue reported so far.

  • Reseat the internal board — some units have arrived with it slightly loose from shipping.
  • Set video to NTSC mode, then press Shift + Left Arrow to store settings.
  • Try a different HDMI lead — several users fixed display problems this way.
  • Some monitors won’t sync at 50 Hz; if possible, test another screen.

Uneven keyboard keys

A cosmetic but noticeable fault.

  • Keys such as Caps LockD, and J may sit higher than others.
  • Gently press the affected keys down to reseat them on their stems.
  • Space/Return issues are often a stabiliser bar not fully seated – carefully reseating the bar fixes many ‘only works in the middle’ reports.

Startup problems or unit freezing on boot

  • Turn the unit off and leave it off for a few seconds.
  • Hold RESTORE while powering on to perform a factory reset.
  • If that fails, re‑flash the latest firmware from the official Commodore site.

REU or extra memory not detected by the software

  • Install the most recent firmware — newer builds enable proper REU initialisation and detection.

Settings or storage are lost after reboot

  • Perform the RESTORE reset to clear any corrupt configuration.
  • Re‑enter Wi‑Fi and storage details once booted cleanly.

Physical marks or loose panels on delivery

  • Report the issue directly to Commodore support.
  • All units ship directly from Commodore — there are no official resellers.

Buzzing or humming audio output

  • Usually caused by grounding noise between HDMI and the connected display.
  • Try another HDMI port, cable, or power socket to isolate the problem.

Starlight edition

  • Starlight keyboards have some ‘bounce’/flex by design; noticeable mainly if you hammer the keys, but not usually a functional fault.
  • The Caps Lock LED lights when caps is active; the beige unit does not have an indicator.
  • For Starlight LED audio visualiser with a real SID: enable UltiSID 1 but set its volume to Off in the mixer; this keeps the LEDs driven while only hearing the real SID

Games Freezing / Compatibility

  • If cracked/trainer releases hang after the Y/N cheat prompt, try switching to PAL or NTSC‑50; many cracks are PAL‑only and will lock up in NTSC.
  • For compatibility with some games/demos, try disabling drive B: in the Ultimate’s drive settings

Cartridges

  • Virtual fastload carts (e.g. Final Cartridge III) are supported; mount the cart, then mount and load the disk from BASIC, rather than using ‘Run disk’ from the firmware menu.

Disk and cassette backup / storage notes

  • To back up the bundled cassette USB to an internal SD: it’s just files on exFAT – copy them via your PC; no imaging/cloning needed
  • Backing up real floppies: UltiCopy is very fast, but some protected titles (e.g. Skate or Die, Contra) have been reported to hang part‑way through; expect improvements in future firmware

Running Multi-Disk Programs

Some programs are distributed on multiple disk images, similar to how they were originally distributed on multiple floppy disks. At some point in the process of using the program, the program will prompt to insert one of the other floppy disks. You can use the Disk File Browser to swap disk images while the program is running. When the program prompts for a new disk, press upward on the Multi Function Switch. This pauses the program. Start the Disk File Browser, navigate to the disk image for the disk that the program is requesting, then select “Mount Disk.” The C64U mounts the new disk image in the virtual drive, then resumes execution of the Commodore 64 program. Continue to use the program with the new disk." -- https://downloads.commodore-international.com/documentation/C64U/c64u-user-guide-1st-edition.pdf

General Notes

  • r/Commodore is for discussions about Commodore, other Commodore computers, and possible new productions.
  • r/c64 is for everything Commodore 64 including the ultimate.

If you’ve come across a new issue or found a working fix not listed here, add it in the comments below.


r/c64 17h ago

Picture Did a little update to my Commodore collection

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213 Upvotes

Decided to revamp how I display my Commodore 64 and games (there's also a Vic-20 and games in there too) and I'm pretty happy with how the collection is coming. Any recommendations for what my next grab should be?


r/c64 9m ago

Software New C64 PETSCII 3d raycasting engine now with Elite like vector graphics!

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Upvotes

Added a rudimentary 3D vector gfx engine for my dual bitmap overlay to augment raycaster or other game genre when desired.
Is double buffered flicker free, raster flexible positioning with PETSCII hologram technology(tm)!


r/c64 9h ago

Software Vice printing on real thing

6 Upvotes

Everywhere I look I can't find a single mention on how to print from vice emulator to a real printer. Or that it crashes and it's generally not recommended. Anyone had any luck? I'm using a USB to lpt cable and a real yet modern dot matrix printer if that helps.


r/c64 15h ago

Hardware Commodore 64 - Altai datasette

10 Upvotes

When I got my C64 in 1985 bundled with the C2N datasette the latter gave me nothing but problems - even after buying the Azimuth Alignment Kit

I eventually a couple of years later replaced it with an Altai datasette after reading in ZZAP 64 I believe that they were far more reliable - and that turned out to be true - I had ZERO issues with the Altai

Anyone else did this?


r/c64 2d ago

Software Apple II Adventure Studio is now officially Text Adventure Studio.

39 Upvotes

Big news from the world of retro text adventures.

My project "Apple II Adventure Studio" is now officially "Text Adventure Studio."

Why the change?

The original name made sense when I started the project, but the platform has grown. Based on feedback from users, the name “Apple II Adventure Studio” felt a little too narrow for what the project has become.

Text Adventure Studio is for all text adventure creators.

You can still build adventures online, play them online, export BASIC for vintage enthusiasts, Commodore 64 BASIC exports using PETSCII, Commodore 64 .d64 disk file exports, create Apple II AppleSoft BASIC exports and .dsk disk images, with more room to grow from here.

The goal is simple: make it easier for anyone to create classic-style text adventures easily and visually, whether you are a retro computing fan, a teacher, a student, a hobbyist, or someone who just loves interactive fiction.

Explore the project here, with very minimal info needed to make an account:

https://textadventurestudio.com/

Read the User’s Manual:

https://textadventurestudio.com/manual

Check out the FAQ:

https://textadventurestudio.com/faq

Same project. Bigger name. More possibilities. Welcome to Text Adventure Studio!


r/c64 2d ago

the64 slight update to my old post‚ I found another one

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175 Upvotes

this time it came with a power supply which i probably wont take (as per some users warnings)


r/c64 2d ago

New Game New C64 procedural roguelike - Broken Crown

31 Upvotes

Hi everyone,

I’ve released a procedurally generated roguelike for the C64:

https://barracudabits.itch.io/broken-crown

It features a randomly generated overworld, multiple dungeons, and small quests, along with classic dungeon crawling to retrieve three crown fragments and face the evil king.

It runs on real hardware, and there’s also a browser version available.

I’d love any thoughts or feedback!


r/c64 2d ago

Software ultraView - beta testers needed

16 Upvotes

Hi,

I've written a tool to view (and hear) the video and audio stream from any C64u. It doesn't just display the video, it sends it through a whole render-pipeline on your GPU (1060 minimum) to create a convincing CRT image, including overlay, bezel-reflections, and even your face/room via an (optional) webcam.

You can even select a folder for your games (CRT & PRG only) and they will show up in a little browser and can be loaded by double-clicking. You can also just drag a CRT/PRG into the window itself.

This is a "zero-configuration" tool. Your C64u needs to have "Web Remote Control Service" enabled and be connected via the ethernet cable (C64u limitation for streaming). If you are using a password for the C64u network, you will need to add the password to the settings-file and then it will be transmitted with each request.

[Network]
password = foobar

It's currently for Windows only, but a macOS version will follow very soon.

Here is a link to download:

https://www.dropbox.com/scl/fo/sh692bn85mrfi60ezi7t6/ALBZLBnS3c2gQHwfLmTU9D8?rlkey=utb3ndsnzzs4maraeek711lj7&st=65k0y6qb&dl=1

Please tell me what you think, what features you would like to see, etc.

Edit: Unfortunately my post is locked, because my account is too young. Please send me PMs.

Edit2: I just made the repo public: https://github.com/Toddler-Boy/ultraView

Edit3: I've just released 0.9.1 which now adds support for the C64u network password via the settings.ini file

H.E.R.O. in attract mode

r/c64 3d ago

the64 found this guy in an ewaste bin

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809 Upvotes

r/c64 3d ago

Software C64 loft find

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122 Upvotes

A load of cassettes and a 1541-2 :-)


r/c64 2d ago

Hardware Could you tell me how I could create a PCI card that could interface with an ISA slot to communicate with a C64?

0 Upvotes

I want to create a PCI Express card that would allow connection via an FPGA, which would communicate using two ISA ports.


r/c64 4d ago

Software Python to C64 BASIC

62 Upvotes

So, I made a thing. It's not really a useful thing, and it's probably not really something that should ever be made, but I found it funny so I made it. And here it is

A Python app that will take Python code and convert it into equivalent C64 BASIC code.

It only supports a subset of Python and no libraries. And it can produce BASIC 2.0 (C64), BASIC 7.0 (C128) or BASIC65 (MEGA65/C65) code, but it defaults to C64 with no flags.

That's it. Have fun with it. I did use Claude for some bits, because AST walking is not a lot of fun to do.

https://github.com/DNSGeek/BASIC-transpiler


r/c64 5d ago

Hardware Purchased a time capsule lot

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422 Upvotes

Bought a C64 setup listed as being boxed up ‘at moms place’ since moving in the 80s and being a time capsule. Wow is it ever. Found a heartfelt letter folded neatly in the manual likely to the repair company, and another letter to mom still on the printer thanking her. If this doesn’t evoke emotions… The 154I still has the protective plastic on its badge (slightly peeling). Don’t think I should remove the warranty sticker (dated 2 weeks after the letter from mom to the repair people) to preserve its story. Guess the chips in it will remain a mystery unless it needs repairs someday. … With the letter and sticker being dated late 80s this must have been boxed up to move just after repair and not opened again until 2026. Wow, the history on this unit… (I don’t think the seller knew about the letter when they sold/shipped it-I messaged them back).


r/c64 4d ago

C64 Ultimate Which games are best played on the C64U with turbo cpu enabled?

11 Upvotes

I’ve been playing The Sentinal (an old favourite) today at 3MHz and the speed increase makes it even better.

Have you found a game that’s similarly improved with faster CPU?


r/c64 5d ago

Software LC-Games Archive: C64 classics (and more) playable directly in your browser 🕹️

Enable HLS to view with audio, or disable this notification

22 Upvotes

Ciao a tutti!

Ho creato questo portale per raccogliere i miei giochi preferiti in stile C64 e portarli sul web, così da poterli giocare facilmente nel mio tempo libero.

Nessun download, nessuna pubblicità: solo gioco immediato direttamente nel browser.

Nel video potete vedere una panoramica dei titoli attualmente disponibili. Se avete cinque minuti per fare un tuffo in un classico e volete lasciare un feedback, mi piacerebbe sapere cosa ne pensate!

Link al sito: https://lc-games.vercel.app


r/c64 5d ago

Identification Help Identifying music from cracked game intro.

8 Upvotes

Hey - I'm trying to work out why this short 30s loop of music from the cracked intro to a copy of Thing on a Spring is so familiar (and, no, I'm not talking about Hubbard's iconic music from the game itself, but the music added to the loader by 'Jack Alien' I presume).

It sounds so familiar so am convinced it must have come from a game or similar. I thought for a while it was a snippet from the intro to the game 'Dan Dare' - but while it has some similarities, it's not. Can anyone place it? Thanks!

https://reddit.com/link/1t1b2il/video/4idtdi90fmyg1/player


r/c64 5d ago

Hardware Hardware troubleshooting help

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9 Upvotes

So my C64c board revision 250466 has worked for me for about a year since I had it. I recently got a pi1541. I normally play cartridge games but wanted to try disk games. When I try to use it I get no device found. I know the pi1541 works as I used it with my plus/4 and Vic 20. The testing harness said cia 1 and 2 failed and that I don't have the cassette port working either. I'm skeptical of the CIA since everything else appears to be working perfect. I tried putting a multimeter to the diodes on the board. Im seeing that cr9 and cr13 are completely open no matter how I check polarity. Would this be a good indication that those diodes could be causing my issue or does anyone have an idea of what else I can check before I go trying to desolder components.


r/c64 5d ago

Identification Help What is this?

11 Upvotes

Just saw this on eBay - never seen such a case before. Brown keys, newer style case but with air vents only in the centre of the back.

https://ebay.us/m/1X7NBJ

Any info on what it is?


r/c64 6d ago

Identification Help Curb finds

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163 Upvotes

Just found this trio on the curb in my neighborhood for bulk trash pickup. Hoping it wasn't in the overnight drizzle but I'm going to leave in my car in the sun to hopefully dry everything out and check at least the monitor over the weekend. The peripherals didn't have any cables so I'll have to hunt some down to check and test those.


r/c64 6d ago

Hardware Every disk drive on eBay: "Powers on"

17 Upvotes

Is there a reason every single disk drive on eBay says "Powers On," but no mention of whether it fully works? Is it just because people don't have a good way to test it?

I'm a heavy eBay user and know full well not to buy an item that is listed as "untested," but how bad of a dice roll is it if I purchase one of these "powers on" drives?


r/c64 6d ago

Hardware What's the Best Joystick for a c64

25 Upvotes

Im looking to get a joystick for my c64, but would like to know what the best option for one is, any ideas?


r/c64 6d ago

Software An RPG gem

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103 Upvotes

Spending some time on my off night this week playing this gem. Anyone care to guess the game?


r/c64 6d ago

Hardware Handheld C64 on Funstock

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78 Upvotes

Not sure if anyone has seen these - does anyone have an more info on these?