Oh, another good thing would be names for each of the different appearances so you know where their from.
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TBH there is not much that I could really suggest that probably hasn't already been suggested or you've already planned for a future version. But the only things I could really think of might be a vore function just to give another use for captured monsters, and possibly the ability to copy species to other characters instead of just the driver, as well as a use for the villages as a possible place to change out characters for different ones instead of having all of them piled in at once, so you have the ones you need for whatever adventure is planned.
But I have enjoyed the game and besides the sexual parts of it, it is a fun little management/resource gather game and hits all the right spots to make me want to keep going. I can tell that this is something you are passionate about and can not wait to see how it improves in the future. Keep up the great work.
Maybe make a femboy monster? Along with different dialog with the different kinds of dicks like how the girls talk about the knot .Maybe also have the girls have special dialog once after a while .An example is when getting naughty with the fox and she brings up the rabbit more dialog like that would be nice. Along with more dialog during sex time and special dialog when you choice to spit roast a character. Another thing i would like to see is something for getting full stars for every position with a girl.
More dialogue for the characters! And the ability to change the player's name is a must. "Null was impregnated xxx times." Also, a character select to start would be nice; pick a base race, and go from there. More furniture! That's a big want, furniture. The ability to walk around your machine would be great, too - just an overhaul of the design would be very much appreciated. ^///^
But the big thing here is just more dialogue and lines. Especially with your partner!
A small request would be a dominant/submissive switch, and a way to build Heat for certain characters. Like, a pheromone humidifier, which you can choose which rooms it'll pump to. The dominant/submissive switch is used to specify what positions the character will default to when in heat. Dominants will want to be on top/giving, and submissives will be receiving. It can have a default option based on the characters as they are now. And of course, their favorite position will have double the chance of popping up.
A story would also be great! I get strong Undertale vibes from the combat, too.
Growing towns would also be great. From village > town > city.
Split paths when digging! Sometimes a hole just needs to be a little deeper. Maybe you could add levels to mines, with harder enemies/more materials the deeper you go?
Music!
And a very important one: Duration boosters, and performance boosters. When used on a character, a duration booster will increase their HP by 100, and reduce their Tech down to a minimum of 0/11/22/33 (depending on level of the booster) for sex only, until you turn it off. A performance booster will do the opposite - while it will still grant 100 HP, it will also grant 25/50/75 Tech for sex only. Also, a Tech Limiter and an HP Limiter both would be great. Each will limit Tech/HP in sex to the number you set. So you could have 70 tech and 100 HP, without blowing a ton of permanent stat changes on the character.
This is a great game so far, I love it! Keep it up~
using the mirror changes the character to a futa or male depending on what's already active, the egg plant adds or removes the "male" portion. So by using both on the standard character that leaves them only to do the female moves (ex. female with female only kissing, 69,..etc.) But depending on what's active limits what moves can be down with what characters.
Skip the Fertilization and Fertility episode:
For some reason, my dragon girl has more than 3000 pregnancies at a time, and the shark can be as high as 2000+... If you turn on overclocking, it will cause it to be bigger than the screen... Even if it is accelerated, it will take a long time to end.
I hope that the display range of several NPC's stomachs and breasts can be increased without "deformation" and "unrestriction", and the maximum can reach the volume of the room.
Action seal: When the size of the NPC is larger than a certain level, some actions will not be available.
Lines for fetal movement and labor pains: Yes, this is love.
Breeding Stop/Release the Curse: Forcibly stop the NPC's gestation time, and still maintain fetal movement or labor pain. If the time is too long, the NPC will complain or even refuse to contact the protagonist. Of course, some NPCs may be excluded. Using this item renders the time bomb ineffective.
Fertilization limit furniture: You can forcibly limit the number of fertilizations to prevent NPCs from being unable to perform certain actions.
UNBIRTH: Inflate the NPC with a robot and make it a fake pregnant woman directly.
NPCs may like it, and can reproduce the birth scene, but if the inflation time is maintained for too long, they will complain or even refuse to contact the protagonist. Of course, some NPCs will like it.
NPC refuses the team: When the NPC refuses to contact the protagonist, the protagonist cannot let him drive the drill.
New items:
Alien Egg: This is just a decoration.
Meteorite Charm: Just an ornament, the hometown of the miniature BROODMOTHER.
New NPCs:
BROODMOTHER: A bug-like alien creature that fell to the island with a meteorite a long time ago. The character is biased towards the mother.
Skin: Alien, Alien Queen, Zerg...
new room
Alien: A purple planet that looks like a crater background, and any terrain can be slightly enhanced.