Updated: September 23, 2025.
Subterra is a Roblox mining and exploration experience where limited-time codes grant resources and time-limited boosts. Use the working codes below to claim Chrono Shards and more.
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8KMEMBERS— 280 Chrono ShardsUPDATE1.3— 140 Chrono Shards3MVISITS— 280 Chrono Shards
How to redeem codes
Step 1: Launch Subterra in Roblox on your device.
Step 2: From spawn, walk to the Codes NPC named Chrysos on the right side of the bridge/gate area.

Step 3: Click to open the code entry box, then paste a working code exactly as shown.

Step 4: Press the Claim Code button and wait for the on‑screen confirmation of your rewards.
Expired codes
100KFAVSBETTERSTORAGE6KMEMBERSBETTERTOGETHERMAJORUPDATE2MVISITS180FAVSERRORED
Why codes might not work
- The code has expired (most codes are time-limited and rotate frequently).
- Typos or extra spaces — codes are case‑sensitive; copy and paste them exactly.
- The code was already redeemed on your Roblox account.
- Session or update issues — rejoin the experience or restart the Roblox app and try again.
Where to find more codes
New Subterra codes are typically shared on official channels: the developer’s Discord server, the Polyworks Studio Roblox group, and X (Twitter). Bookmark this page — we update code lists weekly.
Codes are case‑sensitive and available for a limited time. Avoid third‑party “code generators” or requests for your account details — they are unsafe and not required to claim in‑game rewards.