Mining is fun, but what’s more fun is using Subterra codes for even more ore and shards to use. You never know, it might just get you that next pickaxe upgrade you’ve been working towards, which will help you mine more coal and copper even faster. We’ve got all the active codes below, so you can easily copy them out and pop them into the game for some XP boosts and more.
Subterra codes May 2026
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