This is the sort of eroge that can heal my bruised soul. Fantasy World Slow Life Baby Making with a Demon Lord Wife takes place in an isekai where the protagonist saves a demon lord from calamity, and spirits her away to be his wife. You can see the PV HERE.

This is a pure love story, and is summarized as such:

[ Flirty loving baby making with a kind demon lord wife ]
You save the beautiful demon lord from an evil spirit that had been controlling her,
and run away together to start a new life.
Enjoy a flirty loving baby making life full of love and sex!

[ The demon lord is an ideal wife, who is loyal, cute, and busty! ]
After saving Rishie, you discover that she is much kinder and gentler than a demon.
Enjoy sweet time spent with your new beautiful wife!

[ A parade of sex in a fantasy setting with your cute demon lord wife! ]
Kissing hand job and first time sex, vacuum fellatio in a maid costume, flirty loving bath sex,
sensitive tale touching doggy style, anal training sex, lewd underwear seduction sex,
nurse cosplay sex, racy swimsuit vacation sex, succubus curse sex, outdoor sex,
wedding gown impregnation sex, naked apron sex, preg-belly tit job, and more!

[ The demon lord is voiced super cute to make the situations even more arousing! ]
The sweet and cute moe voicing of your demon lord wife helps you delve deeper 
into your new baby making slow life!

No censored text, and she will expose all of her lewd and sexual feelings to you!

On a completely unrelated note, this sort of reminded me of a Korean series 'My Wife is a Demon Queen'. I don't recommend it. There was promise, and it was washed down the drain really quickly. It went from isekai fantasy to cribbing elements from GoT and the politics from the Star Wars prequel movies. My rant is over. Enjoy the eroge, do not read the Korean series.