Without giving too much away, perhaps the dev can comment:
(1) Are the girl on the horse and short blond haired girl who appears in the background in a couple renders going to play more of a role in the game?
Yes, I have plans for these characters. Especially since some players have even asked me to add a blonde in a poll about the most attractive girl in the game.
I hope you didn't forget to vote, too?
(2) Any further plans for Oksana?
Also yes. I think you will meet her again in the future. And I hope you'll enjoy those meetings.
(3) Question may have been asked before, but how many chapters are planned?
I don't know yet. This game was first planned as a short game for a challenge on the Russian-speaking forum. But then I decided to see how the English-speaking audience would feel about it.
And for some reason they liked it.
Besides, I myself am curious to see how the relationship between the characters will develop in the future.
All the heroines in the game that you mentioned above were added for a reason.
And I think the main character will meet many more beautiful Soviet women.
Besides, I have more ideas about other anomalous things.
Whether to include them in this game, or make them separate chapters, I'm still thinking.
The story of the tunic has really just begun. I think it's only 20-25% of the story that should happen to it.
In any case, I want to ensure you that the game will not be abandoned. I'm really 'hooked' on the heroines of the game, too.
So there's a lot to look forward to in the near future!
Stay tuned.