Quick answer
To clean Star Realms sleeves, gently wipe them with a slightly damp microfiber cloth and let them air dry completely before reusing. Store them in a cool, dry place away from direct sunlight, ideally in a deck box or the Star Realms Universal Storage Box with dividers to prevent bending and dust buildup.
Star Realms Universal Storage Box
Why sleeve care matters for your Star Realms collection
Sleeves take the brunt of shuffling, table grime, and handling during games. Over time, dirt and oils can make them sticky or cloudy, which affects both play and the condition of your cards. Regular cleaning and proper storage help your sleeves last longer, saving you money and keeping your decks looking sharp.
Star Realms sleeves are designed to fit snugly, so even a small amount of residue can cause them to stick together or become hard to shuffle. By following a simple care routine, you can avoid that tacky feel and keep your games smooth.
What you'll need to clean your sleeves
You don't need special products. A microfiber cloth (the kind used for glasses or screens) is best because it won't scratch the sleeve surface. Use distilled water if possible — tap water can leave mineral spots. Avoid alcohol, acetone, or any abrasive cleaner, as these can damage the sleeve finish or cause it to become brittle.
If your sleeves have stubborn grime, a drop of mild dish soap in a bowl of distilled water can help. Dampen the cloth (never soak it) and wipe gently. Always test on a single sleeve first to make sure the material reacts well.
How to clean and store your Star Realms sleeves step by step
- Remove sleeves from cards: Carefully slide each sleeve off its card. Work over a clean, flat surface so nothing falls or gets lost. If a sleeve is torn or stretched, set it aside for replacement. Checkpoint: Don't pull sleeves off too fast — you can crease the card edge. Slide them off gently.
- Wipe each sleeve with a slightly damp microfiber cloth: Lightly dampen the cloth with distilled water (or a drop of mild soap if needed). Wipe the outside and inside of each sleeve. Avoid pressing hard — you just want to lift dirt and oils. Common mistake: Using too much water can leave moisture trapped inside the sleeve, which may warp cards later. The cloth should feel damp, not wet.
- Air dry completely before reuse: Lay the sleeves flat on a dry towel or stand them in a row with the opening facing down. Let them dry for at least 2–3 hours. Do not use a hairdryer or heater — heat can shrink or warp the sleeve material. Checkpoint: If you re-sleeve cards while the sleeves are still damp, moisture can get trapped and cause the card to curl or the sleeve to stick.
- Store in a cool, dry place away from sunlight: Place cleaned sleeves in a deck box or the Star Realms Universal Storage Box. Use dividers to keep sleeves for different expansions separate. Avoid basements, attics, or cars where temperature and humidity fluctuate. Common mistake: Storing sleeves loose in a drawer lets dust settle on them, which can make them feel gritty when you shuffle next time.
Products that help with sleeve storage and organization
- Star Realms High Alert: Universal Storage Box Dividers: These high-quality plastic dividers correspond with the five Star Realms High Alert expansion packs (Heroes, Invasion, Requisition, Tech, and the Kickstarter-Exclusive First Strike pack). Use with the Star Realms Universal Storage Box. Each divider measures 6.3cm x 10.5cm. Dividers keep your sleeved cards separated by expansion or faction, so you don't have to dig through a pile of loose sleeves. That reduces wear from constant handling and helps you find the right deck quickly.
