Already mentioned.

• Slime Rancher
• Fields of Mistria
• A Short Hike

Not yet mentioned (at least that I saw)

• Potionomics

• • A game where you play Silvia, a potion crafter who has taken over her uncle's shop on an island full of adventurers. You get to meet many kinds of people, both adventurers and not, and have a chance at romancing pretty much all of them (at once, if you select the polyamory mode). The art style is adorable (please physically release the cards, devs) and the voice acting is so well done.

• Monster Prom

• • Strictly a slice of life / dating sim about trying to get a date for prom. The cast of characters are very cute, as is the art style. It's also multiplayer if you're into that.

• Emily is Away

• • I believe this one is free. It's a nostalgia blast for those of us who grew up with instant messaging like MSN or AIM. It's been a while since I played, but I remember it being cute and very interesting.