My criteria is: paradigm shift. Which game sold well beyond their historical and contextual constraints?
The Legend of Zelda series
1. Breath of the Wild (23.2 million and counting)
2. Twilight Princess (8.85 million)
3. Ocarina of Time (7.6 million)
4. The Legend of Zelda (6.51 million)
5. Link's Awakening (5.49 million)
Super Smash Bros. series
1. Ultimate (24.77 million and counting)
2. For Wii U/3DS (15 million)
3. Brawl (13.32 million)
4. Melee (7.41 million)
5. 64 (5.5 million)
Animal Crossing series
1. New Horizons (33.89 million and counting)
2. New Leaf (12.93 million)
3. Wild World (11.75 million)
4. City Folk (4.32 million)
5. Happy Home Designer (3.47 million)
Mario Party series
1. Super Mario Party (15.72 million and counting)
2. Mario Party DS (9.31 million)
3. Mario Party 8 (8.85 million)
4. Mario Party 9 (3.11 million)
5. Mario Party Island Tour (2.9 million)
Mario Kart series
1. Mario Kart Wii (37.38 million)
2. Mario Kart 8 Deluxe (37.08 million and counting)
3. Mario Kart DS (23.6 million)
4. Mario Kart 7 (18.94 million)
5. Mario Kart 64 (9.87 million)
Pokemon series
1. Red/Blue/Green (31.05 million)
2. Gold/Silver (23.73 million)
3. Sword/Shield (21.85 million and counting)
4. Diamond/Pearl (17.67 million)
5. X/Y (16.53 million)
3D Mario series
1. Super Mario Odyssey (21.4 million and counting)
2. Super Mario 3D Land (12.81 million)
3. Super Mario Galaxy (12.8 million)
4. Super Mario 64 (11.91 million)
5. Super Mario 64 DS (11.06 million)
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1. Animal Crossing: New Horizons: within the context of its series is honestly far more impressive to me looking at it now. It's easy in hindsight to think "Well of course it's going to sell incredibly well!", but I still think we underestimate New Horizon's time in our cultural consciousness. Yes, it was a "lightning in a bottle" moment as the perfect companion during the pandemic, but that shouldn't take away from the sheer selling power compared to its contemporaries. Within one year, it has already outsold all of the other mainline Animal Crossing games combined. It was the most important game of 2020, and Switch's most impressive seller so far.
2. The Legend of Zelda: Breath of the Wild: went into this thread thinking Breath of the Wild. The Legend of Zelda series has always been a, well... legendary franchise in its influence and legacy. Even so, it has never crossed the 10 million mark for a single release. Breath of the Wild has not only shattered the ceiling previously held by the series, but it continues to sell extraordinarily well more than four years later around the world. It's very impressive, and only will continue to extend its record setting sales.
3. Mario Kart 8 Deluxe: It's easy to not take special attention to 8 Deluxe when it's sitting among a plethora of other mega sellers. But remember that 8 Deluxe is "merely" an enhanced port of a previous game... and that it's about to be the best selling game in the franchise. Its sales over time are truly legendary, already outpacing games 3 years younger than itself (and are no slouches of their own!). By the time it's done selling, if it's ever done selling, it will have raised the bar to unprecedented heights.
4. Super Smash Bros. Ultimate: I understand why it has 0 votes. The Smash series continues to grow with every new title. Ultimate outselling 3DS + Wii U was expected, even before Switch was selling astronomical units. So its easy to hand wave Ultimate's success. But it didn't just surpass as dual system release, it has demolished the ceiling. It still sells incredibly well around the world, and has become a zeitgeist of gaming culture, hype, and celebration.
5. Super Mario Odyssey: Super Mario Odyssey has been somewhat overshadowed by Breath of the Wild as Switch's single player evergreen. 3D Mario has always outsold Zelda, until this generation. But that doesn't make Odyssey's sales unimpressive. Within the context of its own series, Odyssey has blown past the previous ceiling, where 3D Mario's has always hovered around the 10 million mark. And with no original 2D Mario title on the Switch, Odyssey has had plenty of room to stretch its legs and continue to sell to this day. Odyssey is among the top sellers for any Mario game, not just the 3D subgenre. And that's very impressive.