Since 2000px is larger than a post allows, I've uploaded all 12 images to my gallery, you should be able to grab them from there.

It's my turn to entertain you with a little Thursday night live streaming, and this week, I'll go for a simple DD3 dungeon with some pleasant surprises for unwelcome visitors.

Time is Thursday 18:00 CET. Check the YouTube video below for times in your timezone, as well as access the reminder.

Not reliably. The old CC-DOS used a list of numbered fonts. I can tell what font number they used, and if they used the default font list, I can do some assumptions from that, but I already know they didn't use the defaults thanks to the Symbols2 font which I had to manually add to position 7.

Arial is just a placeholder when the actual font is not found. I can guarantee that the old maps did not use arial, but due to the limited resolution in DOS, maps would tend to use mostly plain fonts.

Here is an export of the Sebrun map from CC-DOS, which you can compare to the CC3 result below. Mostly very similar, but you can pick out a few small differences.

I've put hi-res version of these in my gallery, but because on heavy reliance on 0-width lines, this makes them look horrible when zoomed out, but you can appreciate the detail when looking at them in 100% zoom (hint: middle click the thumbnails in the gallery to open the map in a new tab instead of the gallery viewer, this allows you to use the browser's zoom capabilities)

The reason these maps don't look right in CC3+ is that they use a font for symbols, and fonts back then was a completely different format than today's true type fonts.

They look fine in CC-DOS once you configure it to use the right font (It doesn't store the font reference in the map the way CC3+ does), but I assume it is the SYMBOL2.FNT which looks right.

Due to the use of the font, I am not sure if they can be made into CC3+ maps. There is a function for exploding text in CC-DOS but I don't really know how to use it, it seems to be expecting some input which I don't know what is.

I should be able to export them if I can just remember the image export command.

Use layers. They are a great way to hide/show features. You can for example make one layer for each room, and then either have an entity on that layer that covers up the room, so hide the layer to show the room, or place everything in that room on that layer, so when you show the layer, the room appears.

Here is another blog article from me that may be relevant