- D&D Lords of Waterdeep
- 十字キーファイター
- D/Generation
- Dac Rush
- ダックスフント迷路ゲームドキシーゲーム
- DailyGammon
- Dama
- Dama - Online
- Dama Più - Giochi da Tavolo
- チェッカーゲーム™
- Dance Ball Ball Ball
- Dancing Line Bounce Ballz
- Danger World
- Dante's Sinner Filter
- Dark Cards
- Dark Chess - The Way of Kings
- Dark Forest - HORROR GameBook
- Dark Mist
- Dark Quest 2
- Dark Strongholds
- Darkball
- Dark Blood -ダークブラッド-
- DarkBlood2 〜ダークブラッド2〜
- Darkest Dungeon
- Darkest Dungeon:Tablet Edition
- DartTrainer
- Database for Heroes of the Storm™ (Builds, Guides, Abilities, Talents, Videos, Maps, Tips)
- Database for Terraria
- DaVinci Riddles: Mystery
- Dawn of War II: Chaos Rising
- Dawn of War II: Retribution
- ゾンビの夜明け: サバイバルオンライン
- Day Trade
- Day Trader - Stock Simulator
- DayD Time Mayhem TD
- DayD Tower Rush HD
- DayD: Through time and back
- Days Bygone: Castle Defense
- デイズオブエンパイア
- DDHeroes - Dragon Dungeon Hero
- DDTank Mobile
- デッド2048
- Dead Ahead: Zombie Warfare
- Dead Defence
- Dead Empire: Zombie War
- Dead Man’s Chest
- Dead Empire: Zombie War
- Dead Man’s Chest
- Dead Spreading:Idle Game
- Dead Uncleansed Tower Defense
- Dead Zombie War Shooting
- Dead Zone: Zombie Crisis
- Deadly Gym - Stickman Edition
- Deadly Hospital and Lab - Stickman Edition
- Deadly Prison - Stickman Edition
- Deadly Room - Stickman Edition
- Deal.II Strategy Game
- Deal: A Green New Election
- Dear Esther Landmark Edition
- Death Coming
- Death Train Escaper
- Death Zombie: Street Kill
- Debatable | Debate Competition
- DecaPOP!
- Decipher(ディサイファー): 頭の体操ゲ
- Decked Builder
- Decked Builder HD
- Decked Drafter