C64Studio is a .NET based IDE specializing in game development for the C64 in assembler and BASIC

GEOS 2.0 ported from C64/128 to 8-bit Atari

Commodore 64 Kernel I/O entry point monitor utility

png2prg converts a 320x200 image (png/gif/jpeg) to a c64 hires or multicolor bitmap, charset, petscii, ecm or sprites prg.

Commodore 64 type-in programs from sources like Compute! and Compute!'s Gazette

A modern version of VICE PDB monitor

Java editor for Commodore 64 sprites. ✏👻

Ultimate Launcher - run stuff on your C64 with U1541 directy from your Desktop

A port of the Blitz!/Austro-Speed C64 BASIC V2 compiler to JavaScript.

Slide presentation for C64

PetPet is a PETSCII editor for Commodore 64 computers. As it is written entirely in Python, it runs on any platform supported by Python (Windows, MacOS, Linux and others).

This project allows the exchange of files between your local disk and a D64 image (Commodore 64 image disk) . Ce projet permet l'échange de fichiers entre votre disque local et une image D64 (Image de disquette du Commodore 64).

C64 Ultimax "Dead Test" cartridge ROM with many improvements

Source code of GEOS 2.0 for the Commodore 64 and 128

crossplatform class to handle .d64 files. Allows complete class access to 1541 disk format. adding files, verify bam, formatting, file extraction, directory contents etc

C64 Character Set Editor

Mr. V. S. F. Unfreeze takes your VICE VSF snapshot and creates a C64 cartridge CRT file from it.

cross-platform 6502/65c02 assembler. Full macro and scripting supported. Comes with several samples for commodore 64 graphics , wedge and cartridge including a full version of Pong and port of Sweet16

Speeding up the C64 BASIC V2 PRINT.

This is a new basic implementation and expansion, with userful features and examples.