How to Store Retro Games So They Last
Most retro games do not die dramatically. They degrade slowly in a garage, a sunlit shelf, or a plastic tote in an attic, and the owner only finds out years later when a label has faded, a save file is gone, or a disc no longer reads past the second track. The good news is that the conditions games need are the same conditions people are comfortable in. If you get temperature, light and humidity roughly right, almost everything else is minor maintenance. Here is what actually causes damage, and what to do about it.
The three things that cause most damage
Heat warps plastic shells, softens label adhesive, and accelerates every chemical reaction inside a cartridge or disc. Ultraviolet light fades printed labels and box art and contributes to the yellowing you see on older grey and beige plastics. Humidity is the quiet one: moisture in the air feeds corrosion on cartridge contacts, encourages mould on cardboard and paper, and can cause layer separation in optical discs over long periods.
Swings matter as much as extremes. Moving a cold box of games into a warm room can cause condensation on the contents. If you are bringing games in from a cold car or a storage unit, leave the box sealed for a few hours so everything warms up gradually before you open it.
Where to store a collection
Aim for a space that stays at normal indoor room temperature year round, out of direct sunlight, with relative humidity somewhere in the region of 30 to 50 percent. In practice that means a living room, a bedroom, or an interior closet.
Avoid these places, which cause the majority of collection damage:
- Attics and lofts, which get extremely hot in summer
- Garages and sheds, which swing in both temperature and humidity
- Basements and cellars prone to damp
- Windowsills, or any shelf that gets direct sun for part of the day
- Directly on top of or beside a radiator, heat vent, or a console's exhaust
Store cartridges and disc cases upright, like books, rather than in tall stacks. Stacking puts constant pressure on the bottom items and can bow disc cases and crush cardboard boxes. If you use sealed plastic tubs, a few silica gel packs help, but they saturate over time and need replacing or drying out to keep working.
Cartridges: contacts, labels, and the blowing myth
The connector pins on a cartridge are the vulnerable part. They oxidise slowly in humid air and pick up residue from handling. Hold cartridges by the shell and keep fingers off the exposed edge connector.
Do not blow into cartridges. This is the most repeated piece of retro advice and it is genuinely harmful. Your breath carries moisture onto the contacts, and moisture is exactly what accelerates corrosion. Any short term improvement comes from reseating the cartridge, not the air. If a game will not boot, clean it properly instead.
A basic contact clean is straightforward:
- Dampen a cotton swab with 99% isopropyl alcohol. Do not soak it.
- Wipe the contacts on both sides, following the direction of the pins.
- Repeat with a fresh swab until it comes away clean.
- Let the cartridge dry completely, several minutes at minimum, before inserting it.
Never use abrasives, metal tools, sandpaper or pencil erasers on contacts. Cartridge pins are plated, and scraping through that plating exposes bare metal that corrodes faster than it did before. Keep liquid away from labels, since alcohol will lift ink and adhesive. This applies equally to SNES games and to Sega Genesis games, which use different connector shapes but the same basic materials.
Battery-backed saves
Many cartridge games with a save function rely on a small internal coin cell that keeps memory alive while the console is off. Those batteries have a finite service life, and a good number of them are now long past it. Symptoms are a save file that vanishes when you power down, or a game that reports corrupted data every boot.
There is no storage trick that meaningfully extends battery life, and no reason to worry that playing a game drains it faster. Storage conditions do matter in one respect: heat shortens battery life, which is another argument against the attic.
Replacing the cell means opening the cartridge, and in almost all cases the battery is held by welded tabs soldered to the board. That is a soldering job, and soldering directly to a coin cell is dangerous if done wrong. It is beyond a basic clean, so hand it to someone with the tools and experience rather than improvising. A dead battery does not stop the game from playing, only from saving.
Discs and disc rot
Optical discs fail in two ways: physical damage to the readable surface, and degradation of the internal reflective layer, often called disc rot. Rot shows up as pinholes or hazy patches visible when you hold a disc up to a light. It is not repairable, but it is largely preventable with stable temperature, low humidity and no UV exposure.
Keep discs in their cases, upright, and handle them by the edges and centre hole. On a CD, the data layer sits directly beneath the printed label side, so a deep scratch or a solvent on the top face can ruin a disc that looks fine underneath. This is worth remembering with PlayStation 1 games and other CD-based formats.
To clean a disc, use lukewarm water with a trace of mild dish soap and a soft lint-free cloth. Wipe from the centre straight out to the edge, never in circles, since circular scratches follow the data track and are harder for error correction to handle. Dry the same way. Skip paper towels, which are abrasive.
Boxes, manuals and paper
Cardboard and paper are the first things to suffer from damp and sunlight. Store boxes upright and unstacked, and keep manuals flat rather than folded. If you use protective sleeves, choose polypropylene or polyethylene rather than PVC, as PVC can release plasticisers that damage printed surfaces over time. Keep everything away from food storage, since cardboard attracts silverfish and other pests.
Accessories and loose batteries
If a controller, handheld, light gun or memory accessory takes removable alkaline batteries and you are putting it away, take the batteries out first. Leaking alkaline cells are one of the most common causes of unrepairable damage in stored hardware, and the corrosion spreads well beyond the battery compartment. Check anything that has been in storage before you power it on.
None of this requires special equipment. A shelf indoors, out of the sun, with games stored upright and batteries removed from accessories, will keep a collection in good shape for decades. The mistakes that cost people their games are nearly always storage location and folk cleaning advice, not age.
