I'm new to the thread, so basically the reason why there isn't a Completed tag yet is because of an infestation of bugs in the game?
By "finished" I meant the game was basically destroyed and all "good progress" ended. After a long time, the development continued but the quality of art got a lot worse.
I would recommend playing the Unity version, as it is more rewarding. The Renpy version has a little more by way of lewd scenes, but the majority of the extra scenes are not very good quality by comparison.
The Renpy version isn't bad. Let me be clear. It's just if you've been a longtime supporter/follower, this whole development has been a giant headache. Constantly made excuses to patrons, always oversold the amount of content in updates, missed damn near every self-imposed deadline ever, got lazy with the art, and refused free help from other devs when he was clearly overwhelmed.
Again, I'd recommend the Unity version as it feels more like a "game" compared to the Renpy version. The Renpy version is better if you're looking for quick access content as repeatable girl scenes are all 100% unlocked at the start. I forgot how the story content compares, but I know both version have some different individual girl and story content. Hell, may be worth playing both.. idk.