CUDL is an experimental game that was launched on Ethereum mainnet and currently running on Arbitrum. Players can mine $CUDL once a day with their NFT "pet" and use the $CUDL to feed, buy add-ons and LP for MILK. Each pet starts with a 3 day time of death (TOD), if the TOD counter reaches 0, other players can kill your pet for 60% of its points and send it to the burn address.
If you played CUDL on mainnet and your pet was still alive at the time of pausing, you can claim it on Arbitrum here. You will keep your old score, level, and mining capabilities (adjusted to the new algorithm).