Game Trade-In Value Calculator

Game trade-in value erodes fast, sometimes within weeks of a title’s release.
Understanding how stores calculate offers helps you decide whether to trade, sell privately, or hold onto a game a little longer.

Formula: Store Trade Offer ≈ Retail Price × Age Decay × Condition × Platform Factor

For private sale comparison: Net Private Sale = Sale Price − Platform Fees − Shipping

What each variable means:

• Retail Price: the original new price of the game.
• Age Decay: less than 3 months 0.55, 3–6 months 0.40, 6–12 months 0.25, 1–2 years 0.15, 2–5 years 0.10, 5+ years 0.07.
• Condition: Like New 1.0, Good 0.80, Fair 0.50, Poor 0.25 (relative to a clean used copy of the same age).
• Platform Factor: Nintendo Switch 1.15, PS5 1.0, Xbox Series 0.95, PS4 0.85, other 0.70. Evergreen platforms and titles hold value better.
• Platform Fees: eBay ~13%, Facebook Marketplace 0% on a local handover.

What a private sale is worth, relative to the store offer. Stores buy low so they can resell, and the gap is the whole reason anyone bothers with eBay. This calculator prices a private sale at 2.0× the store credit offer on eBay and 1.5× on a local Facebook handover, before fees. Those are the two multipliers doing the heavy lifting in the comparison table, so they are worth knowing: a store offer of $16 assumes an eBay listing near $32 and a local sale near $24.

Worked example: A game released about 4 months ago (the 3–6 month band), originally $50, in Good condition, for PS5:

Store credit ≈ $50 × 0.40 × 0.80 × 1.0 = $16.00 (cash offers run ~20% lower, around $12.80).
eBay comparison: ~$32 sale price − ~$8.16 fees (13% plus $4 shipping) = $23.84 net.

Strategies to maximize value:

• Trade within 30 days of release: value is highest then.
• Nintendo Switch exclusives hold value exceptionally well; trade those last.
• Bundle accessories (cases, manuals) to negotiate a better offer.
• Compare at least two stores: offers can vary by 30–50% for the same title.