itch.io

Both will work fine though 0.9.1 is the Christmas version.
0.9.2 came out a few days ago but is basically the same and without Christmas/winter stuff so feel free to play whatever:)

Lewd-Town-Adventures-0.9.1 is the 64 bit client, and should probably be your default client as long as you are running a 64 bit operating system (more than likely you are). 

The Lewd-Town-Adventures-0.9.1-32 is for those who are still using a 32 bit operating system (the last windows version I can recall having a 32 bit OS option was windows 7).

Either will run if you are on a 64 bit OS, but you may suffer some performance issues if using the 32 bit client.