[mw42]

You can get the original (running in dosbox) from gog.com for a couple of bucks. Maybe it's just nostalgia, but I preferred the original too.

[badminton1]

There is also freecol

http://www.freecol.org/screenshots.html

[jodrellblank]

You can run it in an emulator in-browser from Archive.org for free: https://archive.org/details/msdos_Sid_Meiers_Colonization_19...

Although it's a 300MB download, so I haven't tried. Not all of their emulations work perfectly.