http://www.vgchartz.com/gamedb/?name=&publisher=&platform=&genre=Role-Playing&minSales=0&results=200
It's pretty much the first entry after Pokemon in the most popular RPGs (if sales is any indicator), according to VGChartz data.
Pos | Game | Platform | Year | Genre | Publisher | North America | Europe | Japan | Rest of World | Global |
---|---|---|---|---|---|---|---|---|---|---|
1 | Pokémon Red / Green / Blue Version | GB | 1996 | Role-Playing | Nintendo | 11.27 | 8.89 | 10.22 | 1.00 | 31.37 |
2 | Pokémon Gold / Silver Version | GB | 1999 | Role-Playing | Nintendo | 9.00 | 6.18 | 7.20 | 0.71 | 23.10 |
3 | Pokémon Diamond / Pearl Version | DS | 2006 | Role-Playing | Nintendo | 6.31 | 4.29 | 6.04 | 1.34 | 17.98 |
4 | Pokémon Ruby / Sapphire Version | GBA | 2002 | Role-Playing | Nintendo | 6.06 | 3.90 | 5.38 | 0.50 | 15.85 |
5 | Pokémon Yellow: Special Pikachu Edition | GB | 1998 | Role-Playing | Nintendo | 5.89 | 5.04 | 3.12 | 0.59 | 14.64 |
6 | Pokémon Black / White Version | DS | 2010 | Role-Playing | Nintendo | 4.96 | 2.58 | 5.57 | 0.83 | 13.94 |
7 | Pokémon Heart Gold / Soul Silver Version | DS | 2009 | Role-Playing | Nintendo | 4.09 | 2.49 | 3.96 | 0.74 | 11.28 |
8 | Pokémon FireRed / LeafGreen Version | GBA | 2004 | Role-Playing | Nintendo | 4.34 | 2.65 | 3.15 | 0.35 | 10.49 |
9 | Final Fantasy VII | PS | 1997 | Role-Playing | Sony Computer Entertainment | 3.01 | 2.47 | 3.28 | 0.96 | 9.72 |
10 | Final Fantasy X | PS2 | 2001 | Role-Playing | Sony Computer Entertainment | 2.91 | 2.07 | 2.73 | 0.33 | 8.05 |
11 | Final Fantasy VIII | PS | 1999 | Role-Playing | Square | 2.28 | 1.72 | 3.63 | 0.23 | 7.86 |
12 | Pokémon Platinum Version | DS | 2008 | Role-Playing | Nintendo | 2.67 | 1.58 | 2.69 | 0.52 | 7.46 |
13 | Pokémon Emerald Version | GBA | 2004 | Role-Playing | Nintendo | 2.57 | 1.58 | 2.06 | 0.21 | 6.41 |