- Subterra codes can unlock Chrono Shards, EXP boosts, TNT, and potion support.
- Redeem fast at the Codes NPC near the spawn gate after finishing the tutorial.
- Prioritize Chrono Shards first if you want stronger card progression.
- Ignore expired codes and paste active entries exactly as written.
Active Subterra Codes and Reward Tiers
Subterra codes are the cleanest way to boost early progress without changing your mining route. The best strategy is simple: claim the largest currency rewards first, then move to boosts and utility items.
Start with the biggest Chrono Shard payout, then take EXP and TNT codes, and finish with any small-value rewards.
Chrono Shards
- Best long-term value
- Helps with Ability Cards
- Strongest early currency payoff
EXP Boosts
- Best for longer sessions
- Good when you plan to keep mining
- Faster progression during one run
TNT Blocks
- Best for clearing routes
- Speeds up dense block removal
- Useful in narrow tunnel setups
Potions
- Best for safety
- Supports deeper or riskier runs
- Good backup before long sessions
| Code | Reward | Best Use | Status |
|---|---|---|---|
| 1YEAR | 1,400 Chrono Shards | Fastest card progression boost | Active |
| 100KMEMBERS | 420 Chrono Shards, 10 Wormhole Potions, 10 Return by Death Potions | Long runs and emergency recovery | Active |
| UPDATE | 140 Chrono Shards | Early card unlock pacing | Active |
| FEATURED | 32 TNT Blocks, 2x EXP for 1 hour | Route clearing and focused farming | Active |
| 30KLIKES | 2x EXP for 2 hours | Longer leveling sessions | Active |
| RELEASE | Chrono Shards, Gold | Starter progression and lobby value | Active |
A code can become outdated later, so use the current list while it is still valid and avoid copying old community posts blindly.
How to Redeem Codes in Subterra
The redemption flow is short, but a small mistake can waste time. Follow the same routine every session so you never misread the NPC step or paste a code with extra spaces.
Codes are case-sensitive. Paste them exactly, and do not add spaces before or after the code.
Launch Subterra on Roblox
Open the game, join a live server, and finish the tutorial so the surface lobby becomes fully usable.
Reach the Spawn Gate Area
Move to the lobby hub and look for the Codes NPC near the spawn gate.
Interact With the NPC
Use the interaction prompt, open the redemption box, and prepare one code at a time.
Paste and Claim
Enter the code exactly as written, then press the claim button to collect the reward.
Repeat for Every Active Code
Move through the full active list, starting with the highest-value rewards first.
| Location | What To Do | Why It Matters |
|---|---|---|
| Roblox game page | Launch the experience and enter a live server | Main entry point for the game |
| Spawn gate lobby | Find the Codes NPC / Chrysos | Main redemption spot |
| Polyworks Studio Discord | Check announcements and code drops | Fastest place to watch for updates |
| Polyworks Studio X profile | Watch patch and project posts | Good backup for reward news |
Redeem codes before a long mining session. That way, your boosts and currency work together instead of sitting unused in your inventory.
Expired Codes and Troubleshooting
If a code fails, the issue is usually simple: a typo, an extra space, a retired code, or a tutorial step you skipped. Fix those four things first before assuming the game is broken.
Check the spelling, remove hidden spaces, confirm that you completed the tutorial, and try a fresh server if the claim window behaves oddly.
Quick Code Checks:
- Copy the code exactly as shown, including capitals.
- Remove extra spaces before or after the code.
- Make sure you finished the tutorial and reached the lobby.
- Try the code again after rejoining a server.
- Skip retired codes and use the active list only.
| Problem | Likely Fix | Priority |
|---|---|---|
| Invalid code | Recopy it and remove extra spaces | High |
| No reward window | Finish the tutorial and reach the lobby | High |
| Code already used | That reward was already claimed on your account | Medium |
| Nothing happens after claim | Rejoin a server and try again | Medium |
| Old community post | Use the current active list instead | High |
| Expired Code | Note |
|---|---|
| UPDATE1.4.50 | Retired entry |
| 25KMEMBERS | Retired entry |
| CRASHFIX? | Retired entry |
| LUNAREVENTS | Retired entry |
| 3MVISITS | Retired entry |
| BETTERTOGETHER | Retired entry |
| HOTFIX102 | Retired entry |
| MAJORUPDATE | Retired entry |
Expired codes are common in Roblox update cycles. If a list looks dated, assume the retired entries are no longer worth testing.
Best Ways to Spend Subterra Code Rewards
The best use of code rewards depends on where you are in the loop. Chrono Shards matter most when you want cards, while EXP boosts and TNT are strongest when you already have a mining route planned.
Use rewards to strengthen your routine, not to distract from it. A good code plan should make mining faster, safer, or more profitable.
| Reward Type | Best Time To Use | Priority | Why It Helps |
|---|---|---|---|
| Chrono Shards | As soon as you know your build direction | Very High | Helps push Ability Card progress |
| 2x EXP boosts | During a long mining or combat session | High | Makes one focused run more efficient |
| TNT Blocks | When you have dense rock or ore routes | Medium | Speeds up clearing and tunnel creation |
| Potions | Before deeper or riskier runs | Medium | Adds safety for longer sessions |
| Gold | Early lobby spending or basic progression | Low-Medium | Helps with small early purchases |
| Player Goal | Best Reward Focus | Recommended Move |
|---|---|---|
| Card progression | Chrono Shards | Save them until you want a better build |
| Faster leveling | EXP boosts | Use during a session you plan to extend |
| Route clearing | TNT Blocks | Pair them with dense mining paths |
| Safer deep runs | Potions | Keep them for longer underground trips |
| Mixed early progress | Gold plus shards | Spend on the route that fixes your biggest bottleneck |
If you are short on progress, spend for efficiency first. If you already move smoothly, save the reward for the next upgrade checkpoint.
Subterra Codes FAQ
Use this section when you want the shortest possible answer to the most common Subterra code questions.
Q: What are Subterra codes used for?
Subterra codes are used to claim rewards like Chrono Shards, EXP boosts, TNT Blocks, potions, and sometimes Gold. The biggest value usually comes from currency and long-duration boosts.
Q: Where do I redeem Subterra codes?
Go to the Codes NPC near the spawn gate in the lobby, open the redemption window, paste the code exactly, and press Claim Code.
Q: Why is my Subterra code not working?
The most common reasons are a typo, an extra space, an expired code, or skipping the tutorial before trying to redeem.
Q: Which Subterra code should I redeem first?
Start with the largest Chrono Shard reward, then claim EXP boosts and TNT. That order gives the best early value for most players.