Monstrum - A procedurally-generated, permadeath horror game
Knoword - Guess the word based on its first letter and a definition
Startup Escape - A real-life startup themed escape room in SF!
Reverse Dictionary - Describe a concept and get back a list of words
Clue Word - Clue Word app offers features that let you solve a new puzzle every day by using clues to find all the answers.
Jigidi - Free online jigsaw puzzles. Hundreds of new jigsaw puzzles every day created by users from all around the world.