Pressing the Escape key to pause the game reportedly causes it to crash and close entirely.
It features an open exploration area with no strict time limit, allowing you to move through the environment at your own pace. Community Tips & Quirks wow-waifu-vs-evil-iso
It is generally priced as a budget title, occasionally appearing for as low as $0.99. Waifu vs Evil - Steam Community Pressing the Escape key to pause the game