Update: We found 3 new Subterra codes on May 05, 2026 and added them to the list.
Subterra codes currently unlock free Chrono Shards, TNT Blocks, and temporary Double EXP boosts. The active list is fairly short right now, and every code needs to be entered exactly as written, including capital letters and punctuation.
Working Subterra codes
These are the codes still worth redeeming right now.
FEATUREDNEW — 32 TNT Blocks and Double EXP for 1 hour1YEARNEW — 1,400 Chrono Shards30KLIKESNEW — Double EXP for 2 hours
The current set splits cleanly between a large shard payout and two EXP boosts. If you want the full reward, redeem each code before it rotates out.
How to redeem Subterra codes
Step 1: Open Subterra on Roblox and load into the surface or lobby area. Code redemption happens above ground, not down in the mines.
Step 2: Walk to the Codes NPC near the bridge and the mine entrance. The redemption box appears automatically when you enter the NPC’s area.
Step 3: Paste one code into the box and press Claim Code. When the code is valid, the reward is added immediately.
Expired Subterra codes
These codes are no longer part of the active rotation.
CRASHFIX?— ExpiredLUNAREVENTS— Expired8KMEMBERS— ExpiredUPDATE1.3— Expired3MVISITS— ExpiredBETTERTOGETHER— Expired6KMEMBERS— ExpiredBETTERSTORAGE— Expired100KFAVS— ExpiredPATCH104— ExpiredHOTFIX102— ExpiredMAJORUPDATE— Expired20KLIKES— Expired2MVISITS— Expired5KMEMBERS— Expired10KLIKES— Expired1MVISITS— Expired8KLIKES— Expired40KFAVS— Expired400KSPELUNKERS— Expired3KMEMBERS— Expired
The active pool can change quickly, so the safest approach is to redeem any working code as soon as you log in.