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- CANNONReleased: September 2021Developer: Sprovieri Games
- Farmers Co-op: Out of This WorldReleased: September 2021Platforms: Microsoft Windows
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- Space X CollectorReleased: September 2021Platforms: Microsoft Windows
- Spellarium 7 - Match 3 PuzzleReleased: September 2021Developer: LGT SIA
- Stone MinerReleased: September 2021Publisher: ZPLAY Games
- Tapeworm Disco PuzzleReleased: September 2021Platforms: Microsoft Windows
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- Jewel Match Solitaire SummertimeReleased: September 2, 2021Developer: Suricate Software
- Lost Kittens: Maze GardenReleased: September 2, 2021Platforms: Microsoft Windows
- Suddenly MeowReleased: September 2, 2021Publisher: HH-Games
- Surgeon Simulator 2Released: September 2, 2021Developer: Bossa Studios
- Airplane TycoonReleased: September 3, 2021Platforms: Microsoft Windows
- DEBIE ZONEReleased: September 3, 2021Engine: Unreal Engine 4
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- Robot DaycareReleased: September 3, 2021Platforms: Microsoft Windows, macOS, Linux
- Succubus: Hunt For MealReleased: September 3, 2021Platforms: Microsoft Windows
- Swallow the SeaReleased: September 3, 2021Platforms: Microsoft Windows, Linux
- Tag RoyaleReleased: September 3, 2021Platforms: Microsoft Windows
- Virus ONReleased: September 3, 2021Platforms: Microsoft Windows
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- From Earth To HeavenReleased: September 5, 2021Developer: EpiXR Games
- Night DarknessReleased: September 5, 2021Platforms: Microsoft Windows
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- Brain GamesReleased: September 6, 2021Platforms: Microsoft Windows
- Diner Bros IncReleased: September 6, 2021Platforms: Microsoft Windows
- Splash GirlsReleased: September 6, 2021Platforms: Microsoft Windows
- Temple with trapsReleased: September 6, 2021Platforms: Microsoft Windows, macOS, Linux
- Fill and Cross Trick or Treat 2Released: September 7, 2021Developer: Creobit
- Lost in SpaceReleased: September 7, 2021Platforms: Microsoft Windows
- Mana Go RoundReleased: September 7, 2021Platforms: Microsoft Windows
- Placebo LoveReleased: September 7, 2021Platforms: Microsoft Windows, macOS
- Viral FirarReleased: September 7, 2021Platforms: Microsoft Windows, macOS
- Big Klondike - Classic SolitaireReleased: September 8, 2021Publisher: Subsoap
- Halloween Riddles Mysterious GriddlersReleased: September 8, 2021Developer: Creobit
- Holiday Jigsaw HalloweenReleased: September 8, 2021Developer: Creobit
- HotGirls Sliding PuzzleReleased: September 8, 2021Platforms: Microsoft Windows, Linux
- Jester / KingReleased: September 8, 2021Platforms: Microsoft Windows, macOS, Linux
- The Dawning Clocks Of TimeReleased: September 8, 2021Platforms: Microsoft Windows
- BEAT ARENAReleased: September 9, 2021Developer: Konami
- Clash of LegionsReleased: September 9, 2021Platforms: Microsoft Windows
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- Game Developer SimulatorReleased: September 9, 2021Platforms: Microsoft Windows
- Holiday Jigsaw EasterReleased: September 9, 2021Developer: Creobit
- The RewinderReleased: September 9, 2021Publisher: Gamirror Games
- The Vampire RegentReleased: September 9, 2021Developer: Hosted Games
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- Dungeon Crawler DanielReleased: September 10, 2021Developer: Wolfs Moon Studios
- Fantasy Jigsaw Puzzle 4Released: September 10, 2021Platforms: Microsoft Windows, macOS, Linux
- Loading StoryReleased: September 10, 2021Platforms: Microsoft Windows
- Plumber 3Released: September 10, 2021Platforms: Microsoft Windows
- Prop FactoryReleased: September 10, 2021Developer: lbdl GameStudio
- Puzzle Light: ConnectReleased: September 10, 2021Publisher: Cronostase
- The Cruel kingsReleased: September 10, 2021Platforms: Microsoft Windows
- BASIC ROGUEReleased: September 11, 2021Platforms: Microsoft Windows
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- DinolandReleased: September 12, 2021Platforms: Microsoft Windows
- Fill and Cross Trick or Treat 3Released: September 12, 2021Developer: Creobit
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- ExtrorbReleased: September 14, 2021Platforms: Microsoft Windows
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- Between Time: Escape RoomReleased: September 15, 2021Platforms: Microsoft Windows
- Dog’s DonutsReleased: September 15, 2021Publisher: QUByte Interactive
- Halloween Memory: RebornReleased: September 15, 2021Platforms: Microsoft Windows
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- Merek's MarketReleased: September 15, 2021Platforms: Microsoft Windows
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- LOVE! TRUTH! PUZZLE!Released: September 16, 2021Developer: Rosa Special Studio
- PalmRideReleased: September 16, 2021Platforms: Microsoft Windows, Linux
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- Murder DiariesReleased: September 17, 2021Developer: EpiXR Games
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- 69 Erika LoveReleased: September 18, 2021Platforms: Microsoft Windows, Linux
- Hidden Objects - Cartoon FantasyReleased: September 18, 2021Developer: Boogygames Studios
- Fantasy Match PuzzleReleased: September 19, 2021Developer: Boogygames Studios
- D-CorpReleased: September 20, 2021Developer: Frogsong Studios
- I Love Finding CatsReleased: September 20, 2021Platforms: Microsoft Windows, macOS
- Protect the EarthReleased: September 20, 2021Platforms: Microsoft Windows
- AlmazyReleased: September 21, 2021Platforms: Microsoft Windows, macOS, Linux
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- GpiReleased: September 21, 2021Platforms: Microsoft Windows
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- Holiday Jigsaw Halloween 2Released: September 22, 2021Developer: Creobit
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- CubicusReleased: September 23, 2021Platforms: Microsoft Windows