Not all games with a harem ending have the harem tag. Some games with a harem tag also don't have a harem ending either. So I want to see iif there are some I haven't heard of or forgot about.You can probably just use the harem tag for this no? I doubt games with any form of harem building will drop said progression for the endings.
Played and enjoyed both before. Thanks for your sugestion though.Once in a Lifetime by Caribdis
Edit: Treasure of Nadia by NLT Media