Game category: Puzzle
Undergrave
Survive the Underworld with Strategy: Jump, Dash, and Thrive in Undergrave's Tactical Roguelike Challenge.
Underland: The Climb
Escape and dig to the Earth's surface in Underland: The Climb!
Understand
An experimental puzzle game about guessing rules. In each level, you have to figure out the rules through trial and error, then draw a line satisfying all rules.
Unforeseen Incidents
AN ADVENTURE ABOUT A CONSPIRACY AND A DEADLY VIRUS.
Unheard - Voices of Crime Edition
Listen to voices from the past to solve crimes!
Unicornicopia
Alone in the forest, a Unicorn wakes.
Unitied
Unitied is a minimalistic & relaxing puzzle game.
Unknown Fate
Travel in incredible worlds solving the puzzles around you and collect Richard’s lost memories.
Unlock The King
A Chess-inspired puzzle game designed by the creators of Zen Chess.
Unlock the King 2
Move the pieces and create a path to Unlock the King, this time on a tridimensional board.