Spooky's Jump Scare Mansion is an Indie game with 1000's of rooms full of 'cute terror.'
It plays from a first-person perspective with a Wolfenstein 3D sort of feel. You can play with your keyboard and mouse, as expected. The goal is to wander and explore from room to room. Some rooms seem to have nothing going on, or do they?
At some points, you will encounter creepy yet somehow cute, ghosts at which point you must decide whether to flee or fight. Some objects can be interacted with; it's up to you to figure out which.
Spooky's Jump Scare Mansion has 1,000's of rooms to explore and has excellent replayability.
KoLmafia is a Java-based app that allows you to play the web browser-based online adventure game, Kingdom of Loathing (KoL) which has been around since 2003.