Every Sonic Speed Simulatorcode that has expired, with the date redemption closed. Use this to confirm whether a code from a Reddit thread or old guide is still claimable — if it's on this page, it's no longer valid.
8 expired codes on record
PRJ_SONIC_SHOCK100 Red Star Rings + Code Breaker Badge—EMERALDNIGHT35Free Rewards / Party Hat Rouge—25kBoost—Hooray50kBoost—legoatv(expired)—legorouge(expired)—race2win(expired)—happyholidays2025Candy Cane emoji—