Included below are games that only sold over 1 million units across multiple platforms. This only counts for games that hit that milestone around the same time and on hardware on relatively similar level, we're purposedly ommiting million sellers across several generations.

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• Tokimeki Memorial: Forever With You across the PC-Engine Turbo CD, PlayStation & SEGA Saturn versions.

• Puyo Puyo 2 across the SEGA MegaDrive,  SEGA Saturn, Super Famicom & PlayStation versions.

• Street Fighter Alpha 2 across the PlayStation, SEGA Saturn & Super Famicom versions.

• Mobile Suit Gundam (1995) across the PlayStation & SEGA Saturn versions.

• The King of Fighters '95 across the Neo Geo, SEGA Saturn & PlayStation versions.

• Resident Evil 4 across the Nintendo GameCube & PlayStation 2 versions.

• Final Fantasy XIII-2 across the PlayStation 3, Xbox 360 & PC versions.

• Resident Evil 6 across the PlayStation 3, Xbox 360 & PC versions.

• Dragon Quest X: Mezameshi Itsutsu no Shuzoku Online across the Wii, Wii U & PC versions.

• The Witcher 3: Wild Hunt across the PlayStation 4, Xbox, PC &  Nintendo Switch versions.

• NieR: Automata across the PlayStation 4, PC, Xbox & Nintendo Switch versions.

• Ghost of Tsushima across the PlayStation 4 & PlayStation 5 versions.

• Elden Ring across the PlayStation 4, PlayStation 5, Xbox & PC versions.

Included below are digital only indie games that have sold over 1m units. They're separated from the lists above and below mainly due to the large price difference as many of these games vary from 200 to 2000 yen, mostly cheaper than typical retail games.

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• Human Fall Flat across the PlayStation 4, PC & Nintendo Switch versions.

• Suika Game on Nintendo Switch

• Inside across the PlayStation 4, PC & Nintendo Switch versions.

• Undertale across the PlayStation Vita, PlayStation 4, Nintendo Switch and PC versions.

• Among Us across the Nintendo Switch, PlayStation 4 and PC versions.