"A Playful Proposition" has been updated to V. 1.5!

This update should help address some of the performance and compatibility issues the game has on certain systems. And if it doesn't it also includes some new features to work around it:

Minigame Text Mode!

Allows you to skip the minigame, replacing it with text choices, allowing you to play this game as a straightforward visual novel. Playing the minigame is still recommended, but if you have performance issues, don't like action games, or just want to get to the lewd bits faster, try text mode!

Animated Scene Toggle:

The most likely culprit for people having the game crash when winning was loading the animated scene for winning. There is now the option to turn it on or off in the config menu. It is OFF by default for the HTML5 build now. You can turn it back on if you want to try viewing it.

On top of those features, there have been sever bugfixes, QOL improvements and script tweaks. Enjoy!