Core Keeper
Core Keeper — Keys on RMT
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Core Keeper Keys on RMT — buy game license with zero fees
Core Keeper lets you explore underground caverns, mine resources and grow crops in co-op with up to 8 players. Get activation codes directly from other players without platform markups.
Available editions include standard releases, regional Steam codes and bundles with additional content for cooperative gameplay.
Transactions use P2P escrow protection — funds transfer to sellers only after you receive a working activation key.
What's available in Keys section:
- Steam keys for Core Keeper library activation
- Regional codes locked to specific territories
- Gift copies for Steam inventory transfers
- Bundle keys including Season Pass content
- Early Access licenses for pre-release content updates
Why buy through RMT:
- Check seller ratings and completed transaction history before buying
- Regional keys cost less due to Steam's price zone differences
- Activation codes delivered to chat immediately after escrow payment confirmation
- Request screenshot proof of unused key from traders before purchase
- Reviews show delivery timeframes and service quality from real buyers
How to buy Core Keeper keys:
- Go to Core Keeper > Keys section on RMT
- Select listing with required activation region and edition type
- Pay via escrow — funds freeze until key delivery
- Receive activation key in chat and redeem on Steam
- Verify region compatibility before Steam library activation
How to sell Core Keeper keys:
- Create listing — specify activation region, platform and edition type
- Set price below retail but above regional cost basis
- Wait for buyers and receive escrow fund lock notification
- Send unused key via chat to unlock payment
- Funds credit to balance after buyer confirms successful activation
Popular Core Keeper categories:
- Standard Edition codes for basic cooperative survival access
- Early Access licenses with early entry to new biomes
- Gift keys for multiplayer sessions with friends in underground world
- Regional RU/CIS codes with Steam activation without VPN
- Bundle editions including DLC for expanded content access
Core Keeper keys FAQ:
- Can I activate regional keys in different countries?
- Regional codes are locked to specific Steam zones and may not work in other regions.
- How long do unused keys remain valid?
- Steam keys don't expire until activated in your library.
- What if the key is already redeemed?
- Contact the seller via RMT chat — escrow protection allows fund recovery.
- Can I transfer Gift copies to other players?
- Gift versions transfer through Steam inventory to specified recipients.
- Does Early Access differ from the full release?
- Early Access provides test build access with new biomes and mechanics.
- Does the game support 8-player co-op immediately?
- Yes, Core Keeper supports up to 8 players in single underground world sessions.
RMT is not an official representative or affiliated partner of the developers and publishers of the featured games. All rights belong to Pugstorm. Official website: pugstorm.com