This game was one of the first I've played, when I took notice of f95 zone some years ago. I liked it from the beginning, the amazing art, despite being clearly comic style, the DUNE setting and also the writing, which most often will make you laugh. So the dev clearly shows some good sense of humor.
The gameplay offers you different routes and choices, so you might want to read the walkthrough in order to not miss scenes and to get the outcome of your preference. Unfortunately there is only one save slot, which doesn't encourage trying out different paths in one play-through. Playtime is around 2 or max 3 hours to reach the endings, depending how much you rush through the game.
The dev really made a gem out of this. Unfortunately the journey is almost over, because the dev already works on his next game. I just would have wished some more interaction with Lady Jessica, because most will happen after the epilogue, if you don't use "the voice" on her and the daughter of the emperor, which is a blonde hottie, I don't like to see shared. (You'll have to be careful what kind of dialogues you’ll pick in the very end in order to avoid the bukkake scene.) In general princess Irulan's scenes are quite underwhelming unfortunately. After all she's the emperor's daughter and your reward for becoming the emperor yourself, so she should definitively have some more unique scenes. (Sadly all you'll get with her are the recycled blowjob & spread your legs scenes and the pretty much only unique epilogue anal scene). Overall most of the sex scenes are somewhat redundant, which is a flaw you'll have to live with.
Pregnancy content is lacking in this game. Especially in the bonus area after the epilogue (10 years later) there would have been room for it, after all Jessica even mentions it, that the player should make plenty of offspring for his dynasty. But there isn't any pregnancy content, which is the main reason for me, that I gave 4 stars, instead of 5.
Anyway I really can recommend BTD wholeheartedly for the reasons mentioned above, despite some shortcomings also mentioned above. Well deserved 4 stars. It’s almost a 5 star game for me.