Well, it works... kind of. For a 0.0.1 not bad. And it's a colony sim, which is a rare sight, specifically pornographic one which even more rare.
I played for a bit, there isn't much to do at the moment.
Sprites are nice, and the little motion tweening animations for like idle and walking characters are simple but done well, i like em.
I started a game twice, on the first run everyone just stopped doing anything but stand in place, sometimes they just refuse to build stuff on a specific tile, but are fine with building same thing on an adjacent tile.
Sometimes a deconstructed building still will be present there, but not visible, like my workbech 100% finished blueprint bugged out, so i removed it, but could not place anything there again cuz game believes those tiles are already occupied. And sometimes i build a wall, but it's not visible, tooltip says there is a wall, but for me it's just grass.
There is a bug with plants, their growth bar can just disappear and they are never harvestable. Both the ones on farm plots and just in wild. The berries seem to be the only plant that doesn't bug as much, other ones are pretty much useless.
Sometimes my colonists just plant 2 different crops at the same farm plot. I had a plot with carrots that i removed(both zone and plants) because carrots are bugged, and made one with berries, they started planting both on same tiles.
Wild plants also can sometimes grow on walls. The stone extraction tools are non craftable btw, and you probably should allow to type the number of how much thing to produce. clicking a hundred times on a stone block production task isn't very convenient. Also some food resources can go in negative numbers, i had -3 potatoes in my playtrough.
Now the colonists themselves, i noticed that males have boobs, dunno if it is intentional or not, kinda redundant in my opinion since you already have ⚥ in the game, i'm not that much against the idea, but it should be a very rare imo, in my test runs just to see what type of characters would spawn, i haven't seen any males without the booba.
The sex animations themselves i liked quite a lot, the box popup works great imo, when i was thinking about how sex in a low-res pixel art porn game would look like, i had a similar idea in mind. Maybe the box could be a little bit bigger or allow to zoom in the camera closer.
I dig your style, the way you draw anatomy, and the details like abdominal bulge. Also from the way you draw feet, i suspect there will be some footjob scenes in the future.
I would say that animations themselves also missing a lot, like speed progression and cum, but it's an 0.0.1 and i assume that's in the plans. Consider adding cum inflation tho, if that's something ur not opposed to.
So far i would say that the sex is already better implemented than RimJobWorld, in how it looks.
Sometimes the hearts to see a sex scene are not there, usually on F/F or H/M interactions, i assume it's because those are not done yet.
And colonists sometimes have sex telepathically, standing meters from each other, Would be better if they would stand as close to each other as possible. Maybe that would be a lot of work, but i would like to see some simplistic animation in the actual game world too, as a cool detail. Like 2-3 frame animation, or just motion tweening like in RJW would work too.
Overall i think this proof of concept is great. The genre is not oversaturated and 18+ take on it haven't been done yet as far as i know. Good luck with your game, hope it will not be abandoned since making a game in such genre is no small task, many tried, only few succeeded. I expect a lot of FUN! and crimes against humanity in the best traditions of the genre alongside the smut.
But i also see that you decided to go with with patreon, who probably oppose the latter mixing in with smut, and some types of achieving the FUN! too, which is a bummer.