As a European, Dragon Quest as a whole, as the first one to come out here was VIII. Similar for Final Fantasy, which I started with X, but never had nearly the same pull to me as Dragon Quest.
And I'm absolutely hooked on the series since I started the demo of that game.
3D Zelda might also count. My first one was Wind Waker, but the stealth section at the start and the control scheme (so wished I could invert the axis) turned me off. Ocarina of Time was better, but still not quite for me. Then came Breath of the Wild, and it changed everything for me...
On the PC side of things, the Wizardry series. It's the last of a series that started over 20 years prior, and I pretty much played them in reverse order after starting playing Wizardry 8 in 2004.
The Nintendo eShop rating Thread: http://gamrconnect.vgchartz.com/thread.php?id=237454 List as Google Doc: https://docs.google.com/spreadsheets/d/1aW2hXQT1TheElVS7z-F3pP-7nbqdrDqWNTxl6JoJWBY/edit?usp=sharing
The Steam/GOG key gifting thread: https://gamrconnect.vgchartz.com/thread/242024/the-steamgog-key-gifting-thread/1/
Free Pc Games thread: https://gamrconnect.vgchartz.com/thread/248138/free-pc-games/1/
