Subterra rewards mining with chrono shards, potions, and pickaxe upgrades, and codes from Polyworks Studio hand out extra ore, shards, and boosts without any digging. Redeeming them takes seconds and stacks nicely with whatever run you’re already on.
Working Subterra codes
Each of these codes is redeemable right now for chrono shards, potions, TNT blocks, or double XP time. Enter them exactly as written, since Subterra codes are case-sensitive.
HOTFIX1.4.60— 280 Chrono Shards NEW100KMEMBERS— 10 Wormhole Potions, 10 Return by Death Potions, and 420 Chrono ShardsUPDATE— 140 Chrono ShardsFEATURED— 32 TNT Blocks and 1 Hour of Double XP1YEAR— 1,400 Chrono Shards30KLIKES— 2 Hours of Double XP
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Codes are claimed through an NPC in the lobby, not a menu, so you’ll need to load into the game first.

A successful redemption drops the reward straight into your inventory or currency total, and the code box clears out. If nothing changes after clicking Claim Code, redo the entry and check for extra spaces or a mistyped character before moving to the next code.
Expired Subterra codes
These codes have stopped working and won’t grant rewards if entered.
UPDATE1.4.5025KMEMBERSRELEASECRASHFIX?LUNAREVENTS8KMEMBERSUPDATE1.33MVISITSBETTERTOGETHER6KMEMBERSBETTERSTORAGE100KFAVSPATCH104HOTFIX102MAJORUPDATE20KLIKES2MVISITS5KMEMBERS10KLIKES1MVISITS8KLIKES40KFAVS400KSPELUNKERS3KMEMBERS
Where new codes come from
Polyworks Studio releases new codes to mark updates, hotfixes, and community milestones such as player counts, likes, or group members. Joining the Polyworks Studio group on Roblox and the Subterra Discord server puts announcements about new codes directly in front of you as soon as the studio posts them.
We check for new Subterra codes regularly and update the working list above as soon as fresh ones appear, so bookmarking this page is the simplest way to keep your chrono shard stash topped up.





