Infected The Twin Vaccine is a hidden object game that's about 2-3 hours long. Normally I'd say that's short, but for a hidden object game it's long enough. The story is entertaining and intriguing and better than 80% of the games in this genre. This is also partly thanks to the puzzles that at least make some sense. You don't have to find weird stuff when you're outside, with tens of objects that don't really belong there in the first place. No, this game uses objects that could actually lie or stand there, and keeps things realistic. Finding objects will also allow you to fix/open/destroy things that you couldn't do otherwise. So as you can see it tries to do things differently. And that I can appreciate.
And no, the game is not 100% realistic. I mean, puzzles still require objects that are found in the weirdest places, places you wouldn't ever expect them to be, but like I said it's entertaining, and that's what counts.
Infected The Twin Vaccine is a fun, casual game that's worthy of your time, if you at least know what to expect.