First off, please know that I don’t sleeve cards in my games (and I have about 100 board games, most with some amounts of cards). I tried sleeving my Terraforming Mars cards but after playing just one game, took the cards OUT of the sleeves (and sold the custom sleeves for about half what I paid for them).
However … after playing This War of Mine half a dozen times it seemed obvious to me that the cards in THIS game were a whole new ballgame. There are 14 decks of cards (more if you use expansions and add-ons) and ALL the decks (other than one) are 20 cards or less… three decks have less than 10 cards. Many of these small decks of cards need to be shuffled over and over (seems like I am constantly shuffling the cards). And shuffling was not only tedious, but hard to do! [refer to this article=> How Many Cards Are There]
So… I tried the KMC Perfect Size card sleeves that are a tight fit sleeve. I have played one game with cards sleeved with these Perfect Size sleeves and they are great. For someone who dislikes playing with sleeved cards to say this says something about those sleeves! [refer to the video at the end about tight fitting sleeves]
Once all the cards are in the nice tight sleeves, shuffling was ten times easier! PLUS, all the cards were now protected from repeatedly being shuffled. It was a win-win situation!
But there is one other advantage to these tight fitting “Perfect Size” sleeves. The sleeved cards will still fit into the game box insert! If you use regular sleeves for the cards they will NOT fit back into the box in the insert. The few millimetre differences might almost seem irrelevant, but I tried BOTH types of sleeves (“normal” sleeves and “tight” sleeves) and the difference really *IS* significant. Size does matter :)
The tight fitting sleeve from KMC measures 64×89 mm
A normal sleeve measures 66×91 mm (2 mm more in both length and width)
It is hard to actually show this to you, but let me try a few photos, comparing a card in a tight sleeve next to one in a normal sleeve. First … look closely at the photo and you will see how the normal sleeved card is a tad bit longer (look at the right side a bit below center):
Next, look how it is a tad bit narrower (look at the right side near the bottom):
But the BEST way to tell the difference is trying to set the sleeved card into the insert in the game box! In this 3 second video you can see the tight fitting sleeved card drops in instantly with no problem:
Next … this 11 second video shows that the normally sleeved card won’t just “drop into” the insert and even tapping it down doesn’t get it all the way in (please don’t try this at home):
So, it now was a win-win-win situation!
Here is a video that convinced me to try the KMC Perfect Size sleeves (ignore the aspect of double sleeving … I just wanted a nice tight fit sleeve – not double!):
Another tighter fit sleeve (Swan 509 (size: 64×89)) has been referenced in a BGG forum article.








