Subterra Codes (September 2026)

Subterra is a 2.5D mining game on Roblox where you dig through underground layers, fight off threats, and upgrade your gear to reach deeper areas. Polyworks Studio, the developer behind the game, regularly hands out codes tied to milestones, updates, and community goals that reward chrono shards, gold, potions, and temporary XP boosts.

Working Subterra codes

These codes are confirmed to work right now. Redeem them as soon as possible since Polyworks Studio can deactivate them without warning.

100KMEMBERS — 420 chrono shards, 10 wormhole potions, and 10 return-by-death potions
UPDATE — 140 chrono shards
1YEAR — 1,400 chrono shards
FEATURED — 32 TNT blocks and one hour of double experience
30KLIKES — Two hours of double experience
RELEASE — Chrono shards and gold
HOTFIX1.4.60 — 280 Chrono Shards

How to redeem Subterra codes

Codes are entered through an in-game NPC rather than a website, so you need to be inside Subterra to claim them.

Launch Subterra on Roblox and wait for your character to load into the lobby.

Walk to the Codes NPC, located near the gate in the lobby area.

Copy a code exactly as written from the list above and paste it into the text box next to the NPC.

Press Claim Code. Your gold, chrono shards, potions, or XP boost apply immediately, and the reward shows up in your inventory or as an active buff on your screen.

Expired Subterra codes

These codes no longer work. Skip them and use the active list above instead.

CRASHFIX?
LUNAREVENTS
8KMEMBERS
UPDATE1.3
3MVISITS
BETTERTOGETHER
6KMEMBERS
BETTERSTORAGE
100KFAVS
PATCH104
HOTFIX102
MAJORUPDATE
20KLIKES
2MVISITS
5KMEMBERS
10KLIKES
1MVISITS
8KLIKES
40KFAVS
400KSPELUNKERS
3KMEMBERS
10KFAVS
100KSPELUNKERS
HOTFIX2
180FAVS
ERRORED
1234FAVS
10KSPELUNKERS
HOTFIX

Where new Subterra codes come from

Polyworks Studio releases codes to mark game updates, celebrate follower or visit milestones, and occasionally apologize for bugs or downtime. Codes are time-limited, so a code that works today may stop functioning once its reward pool or promotional window closes.

The fastest way to catch a code before it expires is to follow the game’s own channels. Polyworks Studio posts announcements in the official Subterra Discord server and shares updates through the Polyworks Studio Roblox community. You can also jump straight into the game through its Roblox listing.

Bookmark this page if you want a quick way to check which Subterra codes are still active without digging through the Discord history yourself.