On top of my head from Gen 3 to Gen 8
Gen 3 NES (2):
Zelda 1 & 2
Gen 4 SNES (1!):
Link to the Past
Gen 5 N64 and GBC (4-6?):
Ocarina of Time
Majora's Mask
Link's Awakening/DX
Oracle of Ages/Season
CDi games
Gen 6 GC and GBA (4-5?):
Link to the Past port
Windwaker
Fourswords
Twilight Princess?
Minish Cap
Gen 7 Wii & DS (4-5?):
Twilight Princess
Link's Crossing Bow
Phantom Hourglass
Spirit Tracks
Skyward Sword
Gen 8 Wii U and 3DS (7-9?)
Ocarina of TIme 3D
Windwaker HD
Link Between Worlds
Hyrule Warriors
Majora's Mask 3D
Tri-force Heroes
Twilight Princess HD
Hyrule Warriors Legends
Zelda Wii U/NX
Crazy! Now Compare this to main Mario platformers
Wii U & 3DS:
New Super Mario Bros 2
New Super Mario U
Super Mario 3D Land
Super Mario 3D World
And its still crazy 
! Even if you take out the two Hyrule Warriors, Wii U and 3DS has 6-7 Zelda titles total! The closest to this is Gen 5 with 6 Zelda titles but that includes the Link's Awakening DX port and the other Oracle game that came out in the same generation!
