- O Dever Me Chama
- O Diário de Mika
- O Incrível Circo
- O Luga O Le Motu
- O Mundo de Augusto
- O papagaio que não sabia falar
- O Show da Luna! Vamos Colorir
- Objetos de aprendizagem
- Objects order: memory game
- Oby's Barrel Travel
- Ocean - Find Matching Images
- Ocean Adventure Game for Kids!
- Ocean Animals
- Ocean Animals and Sea For Kids and Toddlers
- Oceano Animais Coloring Book - for Kids
- Marine Animals - Puzzle, Coloring and Underwater Animal Games for Toddler and Preschool Children
- quebra-cabeça animais oceano
- Ocean CleanUp !!
- Ocean Craft Multiplayer Online
- Ocean Doctor - Sea Fish Rescue
- Livro Colorir Desenho Do Oceano - idéias arte bonito caricatura para crianças
- Ocean Fight War Fish Jogo para crianças
- Ocean Fish Coloring Pages for Toddlers and Kids
- Ocean Hidden Objects
- Oceano II - Jogos da Memória e Cores para Crianças
- Ocean Kids Abc Learning-alfabeto e jogo de fonétic
- Ocean Mahjong
- Ocean Mahjong
- Ocean Mania - Summer Game
- Ocean Marble Blast:Legend Shot
- Oceano Mermaid Salon & Dressup - Water World Makeover
- Ocean puzzle HD with colorful sea animals and fish
- Ocean Puzzle Packs Collection-A Free Logic Board Game for Kids of all Ages
- Oceania by BubbleBud Kids
- OceanuX Deluxe - Match 3
- Octagon brain teaser game
- OCTO Logic Puzzle
- Outubro de estilo vestir
- Octobo Fun & Games
- Octodad: Dadliest Catch
- Octopus Evolution
- Octopus Hunter
- Octopuz
- Oculux
- Odd and Even numbers
- Odd Socks
- Odd Squad Agent Academy
- Odd Squad Build-A-Squad
- Odd Squad: Artifact Adventure
- Odd Squad: Odd-mented Reality
- Odd Squad: Van Dashboard
- Oddbods Oddlife: Daily games
- Oddly Satisfying Soap Cutting!
- ODINsWORLD
- Odysseus: long way home Lite
- Oekaki
- Off Now
- Off to Bed - Bedtime Stories
- Office Bottle Flip
- Office Jerk for iPad
- Officiel du SCRABBLE®
- Caminhão de petroleiro offroad
- Offroad SUV Extreme
- Oggy e as baratas tontas
- Ogoola Karuta EN 100
- Oh ! The magic drawing app
- Oh Dear Dead Again
- OH HELL Scoreboard
- Oh Hell! Scores
- Oh My Pool! Everlasting summer
- Oh, that Munchausen!
- OhMushroom
- Oi Frog!
- Oil Paint Art: Color By Number
- Oil Painting - Color By Number
- OinkPop Godot
- OinkPop Scratch
- Okey
- Okey 101 - tile matching game