How to Care for and Store Your Retro Game Cartridges

Whether it's a Famicom cart or a Super Famicom cart, the games most collectors buy today are three to four decades old. Basic care keeps them functional and preserves their value.

Storage

• Keep cartridges upright, out of direct sunlight, and away from high humidity — label fading and warping are common with sun exposure.
• Avoid stacking carts flat for long periods, especially in hot storage areas like a garage or attic.
• Original boxes are cardboard and more fragile than the cartridge itself; consider a protective sleeve if you display boxed copies.

Cleaning contacts

The classic "blow into the cartridge" trick is now known to introduce moisture and debris rather than remove it. A safer approach is a soft, dry eraser or an isopropyl-alcohol-dampened cotton swab gently rubbed along the metal contacts, then left to dry fully before inserting the cart.

Battery-backed saves

Cartridges with save features typically use a coin-cell or similar battery on the board. Over decades, these can leak or simply die. If a cart with save support stops retaining saves, a battery replacement (a common, well-documented repair) usually resolves it — this is a job for someone comfortable opening the cartridge shell, or a repair specialist.

Treat cleaning and repairs as optional and reversible where possible; when in doubt, a cartridge that works as-is is better left alone.