Here's some common issues and fixes that have worked for people. Note, the fixes here will work for most of Indivi's games, not just Lust Doll.
I can't control my character/ my character keeps moving in a certain direction
One of your computer's devices (such as joystick, or even certain gaming keyboards) is causing this behaviour. Disable your devices, then reactivate one by one until you find the problem one, and leave that one disabled.
Reference: Certain Human Interface Devices can mess up directional input, for instance locking it as permanently up and to left. In my case, it was “HID-Compliant Consumer Control Device”.
-It started working after unplugging and replugging in my keyboard after a reset. (Turns out it was a small gaming keyboard)
Running the game in full-screen mode causes issues
Press F5 to manually set to window mode.
When I open the game, the graphics are offset drastically so that certain elements are off-screen/ I only see a black screen, then the game closes
Right click on game.exe. Go to properties and under the compatibility tab, disable display scaling on high dpi settings.
This archive could not be opened. It might be damaged.
Check the filesize of the download to make sure it's not being cut off prematurely. Otherwise, try using Winrar or 7zip to extract the archive contents.
The frame-rate is really slow and lagging
You can try setting the affinity. See the reference link for details (article is for Win7, but works for Win10 as well)
Can this game be played on Mac or Linux?
You need to use an emulator to play on these OS's. People have reported success using WINE (https://www.winehq.org/)
Can this game be played on Android/Iphone?
Unfortunately, it's not possible to play on a cellphone at this time.
There's no .exe file to run the game/ It says RGSS301.dll is missing
Your antivirus might be deleting the necessary .exe or .dll without telling you. Try turning it off and re-extracting the game.
The game says it failed to initialize directX audio
Your speakers might not be plugged in, or your computer's audio system might be disabled. You'll need to enable them.
RGSS3 Player has stopped working
- Open the start menu, and search for 'regedit.exe'
- Click on 'Edit' at the top, then 'Find'
- Search for 'Enterbrain'. Wait for it to finish.
- Right-click on the 'Enterbrain' folder, and delete it.
If you have non-standard characters in the folder name, it could be unreadable by the game. Try renaming the folder to something else.
Nil into string error
The game's files may not have been downloaded or extracted completely. Try re-downloading and re-extracting the game.