Look, I’m gonna be honest with you. I’ve ruined a board game before. Not a cheap one either.
It was a first printing of Betrayal at Baldur’s Gate. Had it for years. Kept it in my basement because my wife said our living room shelf was “full” (fair). Six months later I pull it out and the box lid is curved like a damn rainbow. The board inside? Wavy. Like someone left it in a steamy bathroom.
I was mad at myself for weeks.
So when people come to us looking for storage units, and they mention board games, I stop them right there. Because most folks have no clue how delicate these things actually are. They think “it’s cardboard, how bad can it be?” Real bad. Real fast.
You want to keep your rare games from yellowing or warping? You gotta understand what’s actually happening. And no, I’m not gonna give you some scientific breakdown that sounds copied from Wikipedia.
The yellowing thing
That yellowish-brown color that shows up on white boxes? That’s not dirt. It’s the paper basically getting a sunburn. Even indoor light does it. Not just sunlight. Those LED bulbs in your ceiling? Over years, they add up. The paper’s fibers break down and oxidize. Once it starts, you can’t reverse it. You can only slow it down.
So what do you do?
- Keep games in complete darkness if possible. Closet with a door that stays shut. Not a shelf facing a window.
- If you have to display them, rotate them. Every few months, swap which ones are facing out.
- Those plastic storage bins with clear sides? Avoid them. Light gets through. Use solid colored totes or cardboard boxes.
I had a guy come in last month with a HeroQuest from 1989. Pristine white box. He kept it in a black tote in his garage for fifteen years. No yellowing at all. The tote saved it.
The warping problem
Warping is moisture. Plain and simple.
Cardboard absorbs water from the air like a sponge. Not liquid water — just humidity. When one side of a board gets more moisture than the other, it expands. Then it dries unevenly and pulls itself into a curve.
You know those old vinyl records that warp in the summer? Same idea.
Here’s what actually works:
- Get a cheap humidity meter. They’re like $12. Anything over 55% humidity for weeks at a time and your games are in danger.
- Run a dehumidifier in the room if you’re storing games long term. Especially basements. Basements are game killers.
- Don’t put games directly on concrete floors. Concrete sweats. Even if it feels dry, it’s not. Put down a pallet or some wood planks first.
One trick I learned from a comic book collector? Throw a few of those silica gel packs inside each game box. You know, the ones that come in shoe boxes. Save them. Toss two or three in before you close the lid. Replace them every six months. It makes a real difference.
Stacking mistakes that hurt
People love to stack games vertically like books. Don’t.
When you stack a game vertically, the board inside is standing on its edge. Gravity pulls down on it over time. The board starts to sag. The box lid bows out. Then the corners round off.
Stack them flat. Like they’re laying down to sleep.
But don’t stack too many. I’d say four high max. Any more than that and the boxes on the bottom start to crush. The weight pushes the sides out. Ever seen an old board game where the corners are split open? That’s from stacking too high for too long.
Heat is sneaky
Nobody thinks about heat until it’s too late.
If you store games in an attic or a garage, the temperature swings will kill them. Hot during the day, cool at night. That expansion and contraction loosens the glue in the box seams. The cardboard gets brittle. Then one day you pick up the box and the handle tears right off.
I’ve seen it happen a hundred times.
You want a stable temperature. Doesn’t have to be perfect. Just not crazy swings. 60 to 75 degrees is fine. It’s the daily 20-degree jumps that ruin things.
So where do you actually put them?
Here’s the hard truth. Most houses don’t have a good spot.
- Attics get too hot.
- Basements get too humid.
- Garages have mice and temperature swings.
- Spare bedrooms get light and dust.
That’s literally why we built our storage units the way we did. Climate controlled. Dark. Locked. You can stack your games horizontally on a shelf, throw in some silica packs, and not worry for years.
We’ve got a guy who stores about forty rare games with us. Mostly 80s and 90s stuff. He checks on them twice a year. That’s it. They look the same as the day he moved them in. No yellowing. No warping. Just clean, flat boxes.
You don’t need a huge unit either. A 5×5 locker holds a surprising amount of games if you stack smart. Way cheaper than replacing a warped copy of Dark Tower or something.
Last few things before you go
Don’t use plastic wrap or garbage bags around your games. Traps moisture. Use a cotton sheet or nothing at all.
If a game is still factory sealed? You gotta decide. Keeping it sealed preserves value but the shrink wrap will eventually shrink more and crush the corners. I’d open it carefully and store it in a box protector instead.
Check on your games every few months. Just open the box. Feel the board. Look at the edges. Catching a warp early means you can sometimes flatten it with weight and time. Catching it late means it’s permanent.
Bottom line
You spent real money on these games. Maybe not just money — time, memories, hunting for that one expansion for three years. Don’t let bad storage wreck it.
Keep them dark. Keep them dry. Keep them cool. Stack them flat.
And if your house can’t do that? We’ve got a locker with your name on it. Come see the space. Bring a few games if you want. I’ll show you how to set them up so they’ll outlive all of us.
Go check your collection right now. Find the oldest box you have. Is the white still white? Is the lid still flat? If yes, good. If no, now you know why.
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