Exit Games
Exit Games are the theoretical and practical strategies that govern how users can safely withdraw their funds from a sidechain or rollup during a period of failure. These strategies must account for all possible attack vectors, including the operator going offline or refusing to process withdrawals.
The goal is to ensure that every user has a clear, non-censorable path to reclaim their assets. This is particularly important for derivative protocols where large amounts of margin are at stake.
Exit games often involve complex cryptographic interactions with the main chain to prove the state of the user's balance. A well-designed exit game is the ultimate backstop for the security of any layer-two scaling solution.
It is the core component that keeps these systems decentralized and trustless.