#1 Genso Suikoden 2
#2 Genso Suikoden 1
#3 Genso Suikoden 3
#4 Genso Suikoden 5

in no particular order from here:

#5 FF7
#6 FF8
#7 FF9
#8 FF5
#9 FF13: A Realm Reborn
#10 Alundra
#11 Grandia
#12 Breath of Fire 3
#13 Elder Scrolls: Skyrim
#14 Elder Scrolls: Oblivion
#15 Dishonored
#16 Fallout 3
#17 Legend of Dragoon
#18 Shadow Madness
#19 Legend of Legaia
#20 Azure Dreams
#21 Poker Night at the Inventory
#22 Sonic the Hedgehog
#23 Dragon Age franchise
#24 Mass Effect franchise
#25 Bravely Default

Honourable mention to Suikoden Tierkreis on the DS.