I have a C64 since I was 6, and when all these Civilization-like games came out (Civilization, Colonization, Master of Magic), it was sad for me that there was nothing like that for the C64. However, when programming became interesting to me, I already had a PC. A couple of years ago, I was thinking about a strategy how to paint isometric tiles in the multicolor mode and prepared some graphics for that, but I always thought that the C64 would be too slow and would not have enough memory.
However, a while ago I discovered CBM .prg studio (thanks to Arthur btw.), and a lot of C64-related web-content, and I actually started to program and test whether that would work. To make a long story short, my aim was to make a demo version where a view of the map, unit movement, city economy and research would work. I am at that point now, so I made a video of that.
You may ask - why does he make a video instead of just uploading a disk-file? It's simple - I do not know any C64 artists or musicians, and I think a demo like that should at least have some music at the start (4000 bytes available) and the best graphics.
So, if someone here watches the video and thinks that he/she can make better graphics or has some fitting music to contribute, let me know. I can provide information/specifications on that and the photoshop file I've been using. I can put your names into the credits in return if I use it.
Here is the video - try to watch it at 480p.
P.S. I won't stop working on that, but my spare time is very limited right now, so this is officially a demo, NOT a preview
(Well, it's possible to play without AI)
Cassette ribbon was long and cheap! 
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