- Unicycle 4D
- Unicycle Hero
- One Wheel Cycle Simulator
- Unified Dynasty
- Uniform Tailor Boutique
- Unifying The Three Kingdoms
- UnifyGames
- Uniko
- Unimime - Unicycle Madness
- OffRoad Truck Drive Simulator
- Uninvited: MacVenture
- Unique War Survivor Game
- Unison League
- Unit 404
- Unit Circle Quiz - Memorize the Unit Circle
- Unite & Clash
- Unite Guide
- UNITE! - Puzzle Casual Game
- United Association Safety 360
- United Association Safety VR
- United Front
- United Kingdom Puzzle
- United Kingdom Simulator 2
- United Numbers
- United States & America Quiz
- United States Fun facts
- United States Geography Quiz
- United States Map Puzzle
- United States Map Quiz
- United States Map Quiz Game
- United States Of America LITE - A Montessori Approach To Geography
- United States Puzzle
- United States Quiz
- United States Word Search
- Unitourn
- Unity Music Tiles
- Unity Run
- Unity-chan's Action Shooting
- Unity.Run()
- UnityChan In WonderMaze
- UnityChanRun-RunGame Action
- UnitZ Battlegrounds
- Universal Battle 2
- Universal Library
- Universal Paperclips™
- Universal-Sports
- Universe of Alphabet & Numbers
- Universe Pandemic 2
- Universe Quiz
- Universe Surfing
- University Empire Tycoon-Idle
- University Escape
- University Lab Run : Monsters Experiment Escape
- University of Denver Golf Club
- UniWar: Turn Based Strategy
- Unjumble Word
- Unjumbled
- UNKILLED - Zombie Online FPS
- Zombie Survival Shooter Games
- Unknown Craft Battle Royale 3D
- Unknown Fate
- Unknown Knights
- Unknown planet: Dino evolution
- Unknown Player Survival Mission Day
- Unknown Space: Arcade Shooter
- Unleash the Light
- Unlicensed Taxi Driver
- Unlikely Heroes
- Unlikely Soccer
- Unlimited Bowling
- Unlimited Box - Endless Runner
- Unlimited Drift Car
- Unlimited Drift Car Pro
- Unlimited Halloween Wallpapers
- Unlimited Pizza Shop
- Unlimited Ramp Stunts
- Unlimited Ramp Stunts 2
- Unlimited Skills Hero
- Unlimited Trivia
- Unlimited Zombies
- Unlink Lines