This game has lots of potential. What's in build 0.2.3 is pretty good, but it makes the player want more, and that's meant in the best way possible. Not just in terms of Riya and Lura, but in a general sense of the game, like having more things to do, etc. Although the fact they're still in development as of this build is understandable, and seeing what will be planned leaves you excited, but you can't help but want to see more and maybe even new ideas that aren't listed in what's planned. Hopefully we can see more updates and progress of this game in the future?
That said, there are a few things that could be worked or touched upon. Back to Riya and Lura, their designs can sometimes be... inconsistent. Not in terms of the clothes and accessories they wear, but how they physically look.
In Lura's case her new design when you enter her room and play her game, as well as the 18+ scene aren't an issue. But before you enter her room, when you see her leg, it still looks like how it did in the previous build.
As for Riya, maybe it's just the imagination or perhaps the angles of how the character is viewed, so this is probably a nitpick? But for some odd reason, she looks a little different from how she looks at the mines to how she looks at Lucky Kiss itself? For example, the fur on her neck looks fluffier at the mines then when playing that dice game at Lucky Kiss, or even one of the 18+ scenes, though that last one could probably be excused because of the angle and what she's doing? Another example is her abs don't appear as toned in the dice game in comparison to the mines, but again, that may just be the angle and just a figment of the imagination?
But besides the designs, another thing that a bit of an issue was the progress meter for your relationships with Lura and Riya. Perhaps it was due to the lighting or coloring, but it wasn't easy to see how much the bar was filling up. Yes, there were notifications up top that told you if your bond with them increased or decreased with them from the tasks you did, taking or flirting, and by how much with them. But the point is that it was hard to tell, at least in the beginning portion and the transition to the heart on top of the bar, if the bar was being filled up or not?
Hope you didn't find those critiques ungrateful or unhelpful? The current build of the game is enjoyable, the games you play with Riya and Lura are fine, even better in Lura's case when compared to last time, and the mine is still in development so those will obviously improve. But those details, Riya and Lura's design plus the relationship meter, stood out when playing.
The last few things about this game are some questions and thoughts about the content, both within the current build and planned for future ones, plus maybe even stuff that isn't listed? For starters, the player character. Is the player character meant to just be a blank slate for the player to insert themselves in, or does he have a personality and backstory? Is he also customizable, besides the equipment you get at the merchant store, and could you even change their gender or sex in a future build to choose between male or female? Also, outside of the top down view in the mines, will we ever be able to see the player character's full model and in third person, even in 18+ scenes, or will it be strictly first person all the way? Finally, with the exception of the player character himself, will the cast of the game he interacts with all just be female characters, or will there be other male characters too? For the record, it's completely fine if the main male character is a blank slate, is strictly first person outside the mines, is the only male in the game and you can't change his gender or sex. It was just curiosity about him is all.
But there is something else that comes to mind, and it's all the money the player gets over the course of the game. Besides the mines, tasks and games at Lucky Kiss, will they be able to gain it from other means? Also, what else can you do with the money besides gambling and spending it at the merchant for equipment? Could you maybe invest in things, earn money from that, maybe buy a house and possibly own the town, mines, etc.? While having all that money is good, if you have a lot then it would be nice to do more with it outside buying stuff from the merchant or gambling. It makes it seem like earning all that money was worth it as it allowed players to do more.
To finish this all up, there are the relationships and 18+ content. This might be a dumb question, but besides the talking, flirting, tasks and learning their backstories, does building up their relationship do anything? Does it change the flavor text, such as when you flirt with them, so it's different from how your relationship with those characters were before you got closer to them? Sure, having a higher relationship with them can have you ask them their backstories, and you can learn what they think about you, at least with Riya. I also presume it allows the player to do certain intimacy scenes with them, and in Riya's case make her disrobe? But what else can the player do with the girls, once you have a higher relationship with them? Can you go on dates or explore certain areas with them, or are they part of the random encounters and events planned for the game? Do they develop as people thanks to you? Can you marry them, start a family or even get certain endings with them, if there even is an ending or multiple endings in the game? Finally, for the 18+ stuff, besides the ones the player does with Riya and Lura individually, as well as future characters, could there be ones featuring multiple characters? For example, one with the player, Riya and Lura at the same time.
Anyway, that's all the questions and thoughts of this game for now. Apologies if that was too much? Overall, really interested and excited to see more of this game, and hope to see more soon. Thank you so much for developing this, and best of luck.