Nethercore Game Testing

About

Nethercore Testing is a specialized Claude Code skill designed to help developers maintain game state integrity and synchronization. It provides comprehensive tools for running frame-by-frame sync tests, recording and replaying sessions for regression analysis, and identifying common causes of desyncs like non-deterministic RNG or floating-point errors. By integrating specific determinism rules and debug actions, this skill allows developers to efficiently simulate edge cases and validate game logic across different builds, ensuring a stable experience for multiplayer and rollback-based gameplay.

Key Features

• Frame-by-frame sync testing with automated checksum comparison
• Session recording and replay for robust regression validation
• Automated identification of common desync causes like non-deterministic RNG
• Debug action support for skipping directly to specific game states or levels
• Enforcement of determinism rules for Rust-based game logic and state
• 1 GitHub stars

Use Cases

• Detecting synchronization issues between local game instances during development
• Validating that new code changes do not break existing gameplay replays
• Debugging complex state desyncs by isolating forbidden non-deterministic patterns