This package is absolute bargain!
Ok so I gambled going on other peoples reviews but there's almost endless fun to be had with these two games.
Graphics, Dues Ex is of course dated so don't expect next Gen graphics here, Deus Ex Invisible war however is pretty if your computer can run it (mine stuttered) don't worry it's not like Crysis or Far cry 2 but it does need decent shaders and lighting .
Multiplayer didn't bother the fun and time is in the single player.
Gamplay, Its hard to describe a mixture of a shooter a stealth game and a RPG, you can upgrade your skills such as using assault rifles and other guns or lock picking and less violent means. You upgrade these skills with experience you gain from objectives you complete; there are also AUGs which let you see in the dark and even make you invisible, depending which AUGS you install on your body can drastically change the way you play the game like wise with upgrading your skill set. It's all about how you want to complete the game which has multiple endings depending on the choices you make near to the end.
Story, probably my favourite part it's a SCI FI story weird mixes of fact and fiction taking lots of conspiracies and end of world theory's and somehow compiles them into one tasty package. You will meet a lot of characters along the story who may give you side missions and chances to get information or special weapons it's all down to YOUR choices, stealth throughout? Or shooting your way through enemies till you reach your goal it's up to you. I won't go into the plot to much because I hate spoilers and what not ill just give you a bit of information about the first and in my opinion the best game; you're a agent working for some organisation on a mission to find the source of some virus spreading across the world. This isn't Morrowind Oblivion or fallout so don't expect branching plots or the option to avoid the story because that's what drives the games.