Three words: Yuri; Succubi; Harem.

This is a short puzzle-platformer with two moe girls that aren't really age-appropriate to be Waifu material, but they are ~moe~ nonetheless!

Three nice Waifu characters, none of which put out in this game, but that's okay.

Super Smash Broads: Guilty Girls XXX3 - Queen of Waifus; Moelennium MATCH. Yeah, it's a fighting game with a bunch of Waifus. Approved!

Meh. The scenery almost makes up for the lackluster nearly non-existent Waifu material that you'll be dealing with.

When I graduate I hope to be the tyrannical leader of a totalitarian regime drinking blood from the skull of my defeated enemi— I mean Valedictorian!

Awkward date simulator. Waifu passes inspection, by a razor thin margin.

Independence Day 3: The Waifu Chronicles

This is exactly what every classic RPG is missing; A scantily clad harem of Waifus to join you on your quest to save the world from evil and tyranny.

I'm not sure these kohai are age appropriate to be Waifus... Or that they have any interest in Senpai.