Just a tiny search on these forums, or only reading the FAQ before installing KaOS, would have answered this for you (and probably saved you the time of installing):

(among the many posts on the forum regarding no lib32)

4 months later

There is as replacement for Skype, useable with Firefox and Chrome.

For WINE: kaosx.us/phpBB3/viewtopic.php?f=9&t=166

For Steam: (There is Genymotion as well, in order to run Android Games.)