CKB-SDK provides the following operational interfaces:

1. Create CKB transactions to interact with Kabletop contracts.
2. Provide a build-in P2P module to enable easy implementation of a P2P client and server. (Albeit unstable at the moment and soon to be replaced with more stable P2P crates.)
3. Implement a simple wallet manager to manage plaintext keys, and will soon be upgraded to support generic key management tools like WalletConnect.

kabletop-godot is written on kabletop-ckb-sdk, providing more productive interfaces to help developers write Kabletop games with ease using the Godot game engine.