Haven

Ever wanted to escape to an alien planet with your boyfriend because society is trash? Thats Haven.
OMG. The way Yu and Kay interact is the kind of thing that leaves me wanting so much more. They flirt, they bicker, they cook together, and they have these quiet, intimate moments where they just exist as a couple. Theres a scene where theyre watching the stars, and Yu straight-up tells Kay how much he means to him. It's so damn sweet. Kay being a hornball (bocinapelota dont ask) is one of the funniest and most endearing parts of Haven. No matter the situation, whether theyre fighting corrupted creatures, gliding through the alien landscapes, or sitting down for dinner, Kay always finds a way to flirt with Yu or drop some cheeky remarks. He'll throw out a line like, "You know, if we werent busy saving this planet, I could think of some... other activities we could do" and you just know Yu's rolling his eyes (but also secretly loving it). Or after fights, Kay might say something like, "Wow, you were so amazing out there. I couldnt keep my eyes off you." It's so over-the-top sweet and thirsty that its impossible not to laugh. We're trying to survive, but yeah gotta quench my thirst too yknow.
I don't have to explain that Yu and Kay quickly became my new favorite boyfriends in gaming. Theyre so relatable it hurts. Yu is this fiery, impulsive free spirit, and Kay is the logical, soft-spoken voice of reason type. Together? Absolute perfection. Their banter, the way they tease each other, the soft moments when they just exist together, its pure yaoi gold. Theres no awkward will they/wont they tension. Its a full on established relationship, and you can feel how much these two love each other in everything they say and do.
The game starts with them crash-landing on this dreamy, pastel alien planet called the Source. Youre constantly gliding across the surface of the planet hand-in-hand with your boyfriend. Yes, the game literally lets you glide as a couple. But its not just about the pretty scenery. This planet is full of mystery. Youre cleaning up this weird red rust stuff, fighting corrupted creatures, and slowly uncovering why the Source feels so alive and strange.
The combat is very couple focused, it's all about teamwork. You control both of them at the same time (or better yet with couch coop), syncing up their attacks, shielding each other, and just working together as a perfect pair. It's such a sweet metaphor for their relationship, and I couldn't get enough of it. Plus, the fact that you're always thinking about them as a whole, not individuals, feels so refreshing. It is what true partnership looks like.
Also, the soundtrack? Absolute banger. It's all these dreamy, lo-fi electronic beats by Danger, and it feels like it was made for cuddling up with your boyfriend while looking at the stars. (Or, you know, fighting space monsters together. Same vibe.)
HIGHLY RECOMMENDED!: Haven is everything I've ever wanted in a game. It's romantic, heartfelt, and full of that soft, domestic BL energy we all love. Yu and Kay are the kind of couple you root for with your whole heart, and by the end, you'll feel that love really can conquer all. If you're just a sucker for love stories, do yourself a favor and play this game. Trust me, you won’t regret it.
Couple remark: We played the game with the free Diversity Update which allowed players to choose a same-gender couple—either two men or two women. They added thousands of new dialogue lines, new art. Its absolutely awesome. Play the game with any type of couple you want, m/m, m/f, f/f. (*≧ω≦*)
Muffin!
Hearty as pie dough!
Cupcake!
Sprinkle and glow!
Muffin & Cupcaaaaaake... Go bakers go!
ᴺᵒʷ ᵉˣᶜᵘˢᵉ ᵐᵉ ʷʰᶦˡᵉ ᴵ ᵍᵒ ʳᵉᵖˡᵃʸ ᶦᵗ ᵃⁿᵈ ˢᵠᵘᵉᵉ ᵒᵛᵉʳ ʰᵒʷ ᵐᵘᶜʰ ᴵ ˡᵒᵛᵉ ᵗʰᵉˢᵉ ᵗʷᵒ

This is another one of those 'I have a lot of mixed feelings about the game' games.

I ADORE Yu and Kay and their story, and by god I could gush about the gorgeous art they have for the load screens and animations, along with Danger's FANTASTIC music for days, but the actual 'game' part has many, many problems that make it difficult to fully recommend to people who want an easygoing experience (that this game states that it provides).

The combat is incredibly frustrating and clunky, and the movement (while slick) is finicky at best but most of the time is another source of annoyance (esp when trying to follow aerial flow threads). The crafting systems are set up in a way to seemingly deliberately waste your time as to need to slowly add individual items, then watch the animation of the cooking/crafting/touchpad, then slowly select the option to craft another one and repeat each time you want to make another item. I could rant more, but I don't want to be overly negative. Overall, I did have a decent time with it, just the issues did wear me down until I was ready to throw in the towel and not bother finishing getting all the achievements.

I make the 'positive' recommendation almost solely based on the story/characters, OST (seriously, buy/listen the soundtrack and put it on loop forever), and its art because the 'game' part could have used some more work/tweaking.

I am very ambivalent about this game.
The plot isn't very good. There are many plot paths that are cut abruptly and never talked about again. There are many parts that raise many questions for me but I'll leave them unmentioned here because I want to keep the review spoiler free.
Haven is all about interactions between the two characters. And at the start of the game I didn't believe in the relationship. It just felt off. Maybe because you're introduced to the characters when they love each other and you're not shown any backstory of their relationship. Over time I started feeling much warmer towards the pair.
Gameplay isn't good either. The exploration is bad. It is just about traversing islands which are all the same. Sometimes you need to take a glowing rail to reach a higher altitude. Wowie. There are only four location types and you spend 80% of the time exploring only one type which gets stale really fast.
Progression only affects numbers so there's no reason to discuss it. There are no customization of any game segments either.
The worst part of Haven is the combat system. It's extremely simple and static. And if you're especially dull like me and decide to clear out each island in the game, you're forced to finish every fight on it. I highly do not recommend doing it because it's pointless and running away from enemies will prove to make your game experience much better.
Soundtrack is great. I only learned of the game (and sequentially bought it) because I saw one of my favorite music artist in the genre Danger work on it. And the soundtrack is fantastic. At first I didn't think it fit the game that well, but after an hour I understood that I'd drop the game if it was not for it. The score is definitely the strongest part of the game for me. Voice acting is great too.
And personally, this game raised some thoughts in my head about what I would like to have in my relationship if I'll ever get in one again. And generally showed that there can be this level of trust between people. It's obvious for normal people, but was important to be reminded for me.
Nevertheless, I would not recommend this game unless you really want to submerge into detail of the relationship of Yu and Kay. Although the game is quite unique in its genre, so if you'd tried everything, maybe this one will be new experience for you.

I love the romance between the main characters. Games like this are rare. Usually romantic games are otome or dating sims. So to have a game in this genre focus purely on romance is really cool to see. I don't know any other game like it.

I'm a little mixed on this one. I've been playing it with my partner on his account (we share Steam libraries) and it's a very feel good game, pretty visuals, nice voice acting, the characters are a very cute couple and we liked that you have multiple options for their genders.
So we're enjoying it for the cutesy relationship stuff and the relaxing gameplay, but we both agree that playing it alone would be very boring. Nothing is really happening, the gameplay is basically just following lines through the world and collecting some items, with some very basic turn-based combat thrown in occasionally.
Plus the character interactions can be a bit frustrating sometimes, when you only have the option to basically have an argument. For a game that's focused around a couple eloping to a strange world together, they bicker an awful lot.
So it's a soft recommend from me, but I'd only suggest playing it with a significant other.

This game is probably the best cozy game for couples.
Can also be played as single player.
Love it 10/10.

Finally they added ability to play it as two women.
Game has decent (a bit naive and romanticized) story and standart-ish gameplay with some unique twists (stylized exploration and jRPG battles).
Best to play it with your couple on one screen (or via Remote Play Together), as it is focusing on romantic relationship and your actions can change some outcomes and events (thought, not much). Technically you can play it alone with an AI controlling your second half, but it is not as fun this way.
Premise of the story is that you and a person of your choice are two young adults (or older teens) in love, who escaped the world to a new clean planet. You are building here a house to live together and to better bond with nature that you adore so much, while enjoying this untouched by civilization world. However, your past is not leaving you alone - as an Evil Empire wanders world to world and consumes all its resources and energy, polluting planets or completely edstroying them to dust - and now it is aiming to get here. So your love to each other and love to nature is challenged not only by the life together in lone small planet, but also by your past and the Evil Empire that can't just leave your alone. But maybe your new bond with nature and each other can help you to save this planet and yourselves? Or two people is just not enough to challenge such an immense force?