Final Cartridge III Calculator Easter Egg

The C64 extension cartridge Final Cartridge III contains a graphical user interface named “Desktop”. There are two easter egg messages hidden in the calculator (from the “Utilities” menu).

By typing the numbers below followed by ‘=’ (or return key), it will briefly show one of two messages.

Number Message
60346409900 Megafold Software 1987
72930036200 Ineke, veel liefs, Gerard

Gerard van Assem is one of the developers of the FC3 Desktop.

14 thoughts on “Final Cartridge III Calculator Easter Egg”

  1. What a fun trip down memory lane! I love how you uncovered the Easter egg in Final Cartridge III—makes me nostalgic for all those hidden gems in games from back then. I remember spending hours just trying to figure out little secrets like that! It adds such a layer of charm and unpredictability, doesn’t it? Thanks for sharing this find; I really appreciated the detailed breakdown. Can’t wait to dive into more of your Snow Rider 3D posts and rediscover other classics. Keep up the awesome work! 🎮

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  2. Este artículo descubre dos curiosos mensajes ocultos en la calculadora del complemento Final Cartridge III para la consola C64, un detalle nostálgico muy interesante para los aficionados a la informática retro y la arquitectura 6502. Los contenidos sobre historia informática y hardware clásico pueden convertirse en vídeos explicativos llamativos con Nano-video.

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  7. Love discovering these little retro secrets! It’s amazing how developers back in the 8-bit era hid personal messages behind specific key sequences. Uncovering easter eggs through simple key inputs brings that same satisfying fun as tapping away in Spacebar Clicker. Thanks for documenting this neat piece of C64 history!

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