Oh there are so many... Quest for Glory 1-5, full playthroughs... I'm absolutely obsessed with that series, and I WANT a remake so badly. I think it could be well done in an open-world RPG setting since basically thats what the series was within the limitations of the Sierra adventure games format.
Other than that? Name any 90's Sierra game, ANY Legend of Zelda and I'll play it again just because I love those games.
ARMA 2 for some reason keeps calling me back despite the huge learning curve it seems to present me.
X-COM: UFO Defense and also the current remake
Hitman 1-4 and Absolution (Blood Money is the best but I love the whole series, even Absolution...)
Temple of Elemental Evil - There's something about this game that kills me, its difficult as hell and I've never finished a playthrough but I keep coming back to it.
Other than that? Name any 90's Sierra game, ANY Legend of Zelda and I'll play it again just because I love those games.
ARMA 2 for some reason keeps calling me back despite the huge learning curve it seems to present me.
X-COM: UFO Defense and also the current remake
Hitman 1-4 and Absolution (Blood Money is the best but I love the whole series, even Absolution...)
Temple of Elemental Evil - There's something about this game that kills me, its difficult as hell and I've never finished a playthrough but I keep coming back to it.