Anyone here play anything from the Deus Ex series? The original game (2000) is easily my favorite game of all time (as you can probably tell from my avatar). I still believe that, despite its flaws and its age, its level design and the amount of freedom it offers is still unparalleled to this day. I'm also a massive fan of the modern prequels (Human Revolution and Mankind Divided).
For anyone who hasn't played these games, I'd highly recommend them to anyone who likes RPGs, stealth games or any story driven games as a whole.