How to Protect Your Board Games from Mold

Living in Malaysia means dealing with one of the most humid climates in the world — and if you're a board game collector, that humidity is your biggest enemy. Mold can silently destroy your beloved games, warping cards, staining boards, and ruining components beyond repair. The good news? With the right precautions, you can keep your collection safe for years to come.

Here's everything you need to know.

Why Board Games Are Vulnerable to Mold

Most board games are made from paper, cardboard, and card stock — all of which are highly absorbent materials. When stored in humid or poorly ventilated spaces, moisture gets trapped inside the box, creating the perfect breeding ground for mold and mildew. Malaysia's average humidity of 80–90% makes this a very real risk, especially during the rainy season.

Step 1: Control the Humidity in Your Storage Area

The single most effective thing you can do is control the humidity where you store your games. Mold thrives above 60% relative humidity, so aim to keep your storage area below that threshold.

• Use a dehumidifier in your game room or storage area, especially during the wet season.
• Silica gel packets are a cheap and easy solution — toss a few inside your game boxes or on your shelves. Replace them every few months or when they're saturated.
• Air conditioning naturally reduces humidity, so storing games in an air-conditioned room is a big advantage.

Step 2: Store Games in a Well-Ventilated Space

Avoid storing board games in enclosed, poorly ventilated areas like the bottom of wardrobes, under beds, or in storerooms with no airflow. These spots trap moisture and heat — a recipe for mold.

• Store games on open shelves where air can circulate around the boxes.
• Avoid stacking games directly against walls, especially exterior walls that may have condensation.
• Leave a small gap between shelves and the wall to allow airflow.

Step 3: Keep Games Away from Direct Sunlight and Heat Sources

While sunlight can help kill mold, direct UV exposure will fade and warp your game components. Fluctuating temperatures also cause condensation, which introduces moisture. Store your games in a cool, stable-temperature environment away from windows, air vents, and appliances.

Step 4: Inspect Your Games Regularly

Make it a habit to check your collection every few months, especially games you haven't played in a while. Look for:

• A musty or earthy smell when you open the box
• Visible white, grey, or black spots on cards, boards, or inserts
• Warped or wavy cardboard components
• Discolouration on card edges or box interiors

Step 5: Dry Components Thoroughly Before Storing

If you've been playing at a cafe or outdoors and components got slightly damp (from drinks, rain, or sweaty hands), never pack them straight back into the box. Let everything air dry completely in a well-ventilated area before storing.

Step 6: Use Protective Sleeves for Cards

Card sleeves don't just protect against scratches — they also create a barrier against moisture. Sleeving your cards is one of the best investments you can make for long-term preservation, especially for games with lots of card components.

We carry a wide range of OGS Sleeves in various sizes at Playmaker — perfect for protecting your card game collection.

Step 7: What to Do If You Find Mold

If you discover mold on your game components, act quickly:

• Isolate the affected game immediately to prevent spores from spreading to other games.
• For hard plastic or wooden components, wipe gently with a cloth lightly dampened with isopropyl alcohol (70%). Let dry completely.
• For cardboard and paper components, unfortunately these are very difficult to salvage once mold has set in. You may be able to find replacement components from the publisher or BoardGameGeek's marketplace.
• Discard the box if it's heavily affected and transfer salvageable components to a new storage solution.
• After handling moldy items, wash your hands thoroughly and clean the area where the game was stored.

Bonus Tips for Malaysian Board Game Collectors

• Consider investing in airtight storage containers or zip-lock bags for smaller components.
• During the monsoon season (October–March), increase your dehumidifier usage and check your collection more frequently.
• If you live in a high-rise with good air conditioning, you're already at an advantage — make the most of it!

Keep Your Collection Safe with Playmaker

At Playmaker, we understand how much your board game collection means to you. That's why we stock quality accessories like card sleeves to help you protect your games. Browse our webstore or visit us at the cafe — our team is always happy to share tips on game care and storage!

Happy (and mold-free) gaming! 🎲