To clarify: I played this on Steam, but I think that there are no differences between these platforms. Harmony is an incredibly beautiful VN with a lot of branching. Branching can depend on your previous choices, can lead to specific outcomes and affiliations with certain Aspirations, god-like creatures you have to communicate with throughout the game. Honestly, I loved everything about the game: art (especially characters design), writing, music, animation, topics that it raises throughout the game. I find myself still thinking about this game from time to time, which is the best compliment I can give. However, keep in mind, that despite all the unique features, it is still a visual novel, so don't expect a more classic adventure game. You will mostly follow the narrative and choose which direction it will take.
Afterparty is a beautifully written and incredibly fun game. It can serve as a major disappointment for people who expected Oxenfree-like eerie vibe. But while gameplay is similar, the game is way more comedic, mory goofy and over-the top. So don't expect similar experience — but that's actually great, who needs to get too similar games? I liked it a lot, even though right now game lacks some polish (some animations were working not correctly, some little issues here and there). But nothing game-breaking and nothing that couple of patches can't fix.
For some reason this game has bad reputation. Well, it was different from the previous entries in the series, graphics were...debatable, controls were not the best, but humor, story and puzzles are more than making up for those disadvantages. Storywise this game has some of the most clever and memorable moments in the series. So if you can look past the visuals and control scheme, you definitely should check this masterpiece out.
This game is just so much fun! I see a lot of negative reviews and I honestly can't get why they prevail. Sure, there few bugs here and there, sure, some portions of the game can be repetitive, but overall it is really great run'n'gun game. If you like games where you kill everything that moves, collect items and sometimes upgrade your weapons, this one will not disappoint you. If you don't like this genre, just pass it. Game also has cool protagonist, humor that can vary from stupid to really subtle and nice looking design.