It all depends on their system requirements! My PC has a dual core intel pentium, Windows 7, Intel HD onboard graphics card, 2GB of RAM memory. Night of Revenge runs smoothly, although the Laboratory map lags a tiny bit. Ghost Hunter Vena and Celeste (not eroge, but since it's popular, may be useful as an example) are other games that lag a bit when starting up and then start running smoothly. I can also run Minecraft on 30FPS with optifine&4 chunks render distance when on relatively low resolution.
Well, then your computer is a lot more powerful than I thought. I have windows 8, but with 64-bit Windows, so I'm not as limited for programs I can run. Still, if you can set aside the money, I would recommend getting a graphics card. Not only does it make your games run and look better, but computers in general need to "draw/render" things on your screen, just for something simple like going to YouTube. It can drastically improve your experience, even with older machines. You can get a decent GPU for like $100, or even way less than that if you go on eBay.
Personally, I like GeForce GPU's, although some people swear by Radeon. If you rely too heavily on onboard graphic cards, they can cause some damage or just be frustrating in general, although if you can run things like Celeste and Night of Revenge, you'll probably be okay for a while, but still, a GPU would definitely make your life better, especially if you become an gaming addict around here, like the rest of us xD. I was thinking of getting back into Minecraft, but the last time I played, I ran it with like 100+ mods (Vanilla Minecraft is pretty boring), and I couldn't imagine doing that without my GPU.
Oh, Alien Quest EVE has system requirements that seem to suit me even though the download runs the risk of working only with 64-bits windows (I use a 32-bits/x86 windows), I'll test it! Any other similar games?
Now that I've gotten some sleep, I remember a few games, although I don't seem to have a few of them installed, so I don't fully remember some of their names. There was another "sexy metroidvania" called something like "Alchemy Girl", I think it got an update a month or two back, so if you comb back far enough through the
Latest Updates you should be able to find it. Generally speaking, I pop on every few days and then comb through the Latest Updates, starting with the last game I remember being new, and see what's come out/updated. That's pretty much how your going to find out about all the fun pervy stuff.
The first game I probably should have mentioned is
Summertime Saga. It's not a 2D side scroller, more of a point and click adventure, but it's widely considered to be top tier eroge. The game is crazy long at this point, with a ton of girls and stuff to do, a pretty decent story with really well done animations, so your bound to find something you like there.
Been a while since I played it, but another popular game is
Dating My Daughter. It's an absolutely ridiculously long game with multiple paths that are constant throughout your playthrough, so good luck finishing it. The game is so log that it's currently split through 3 different "Chapters", which are essentially 3 different games, but your save carries over between them all, along with all the good and bad choices you made. You don't even have to bang the daughter; personally, I had a thing for her slutty petite friend, although you can certainly dip your pen in both, just don't get caught!
Probably about 75% of the games here are RENPY style games, which are like point and click multi-choice games that play out like a graphic novel (basically, like Dating My Daughter). Unfortunately, about 95% of those games suck (in my opinion), a lot of the times due to them having no long term goal, or poor translation. However, there are a few gems amongst them, and they usually don't take long to play, so maybe something to consider there.
The name of that other game I mentioned last night was actually called
Future Fragments. I haven't played it in a long time, but it was a pretty great metroidvania. I heard it's "fully releasing" in a few months, so it probably has a ton of content now. If your into DC Comics,
Something Unlimited and
Girls In The Big City are amazing games.
In terms of RPGmaker eroge,
My New Life [Beggar of Net] was pretty damn good, and it's getting a complete rework right now called
My New Life REVAMPED, although I haven't played that yet, so I can't comment if it's as good as the original. The most popular RPGmaker sexy game around here is probably
Town of Passion. That's a pretty great game, although with a bit of a slow progression. The animations were top quality, too.
My favorite sexy RPGmaker game is
Bones' Tales: The Manor. It has a decent amount of content, but it does require a bit of grind to get anywhere (you can skip most of the stat grind by just spending time with one of the girls or yourself, at the start of each day, that speeds up things significantly). The only problem with the game, is that it rarely updates, which is mostly caused by an issue where Patreon kicked them to the curb a year or so back, for their raunchy content.
Milftoon Drama is another popular game, although it's pretty long and it's story progression is somewhat confusing, so I highly recommend using a walkthrough.
And, there are a ton of other games, but I feel like I already went awkwardly beyond norm at this point, haha. Becides, some of those games would quite literally take you a week to finish, even if you were to play them religiously for 5+ hours a day. I can't imagine anyone 100% completing Summertime Saga, Dating My Daughter, Something Unlimited or My New Life in a single day. Your horny levels would have to be over 9,000 to accomplish such a feat.
