Hell Rails: The Scary Train currently has one live public code. The active code matches the latest UPDATE 1.0 rollout and can be redeemed for a free reward.
Working Hell Rails: The Scary Train codes
UPDATE1— Free reward
UPDATE1 is the only active public code currently available. When the redemption goes through, the reward is added to your inventory.
Redeem Hell Rails: The Scary Train codes
Step 1: Open Hell Rails: The Scary Train in Roblox and join a session. Wait until you are fully loaded into the game before entering a code.
Step 2: Open the game’s code redemption option. Type or paste UPDATE1 exactly as shown.
Step 3: Submit the code to claim the reward. You will know it worked when the free reward appears in your inventory.
The game page points players to its community server for new code drops, so new public codes are most likely to appear around future updates.