How to use this tool
- Choose a sample team or prepare your own six-spirit lineup in the team builder.
- Select your opponent, starting spirits and controls, then start a practice battle.
- Choose a skill or switch spirits, resolve the turn and review the battle log. Export a replay to revisit the match.
What this tool does
This unofficial Roco Kingdom Showdown-style simulator runs battles in your browser using recovered legacy S3 rules. It supports AI practice and manual control of both sides. Supported spirit and skill mappings are checked before battle; unsupported configurations are reported rather than silently substituted.
Common questions
Can I battle another player online?
Online matchmaking and ranked battles are not available. Use solo AI training or control both sides on the same device.
Does this match the current game season?
It uses legacy S3 rules, normalized stats and the engine’s supported effects. Build levels do not scale battle stats. Current-season data can differ; review the rules notice and any configuration warnings before starting.
How do replays work?
Export a JSON replay containing teams, the random seed and actions. Import it into this tool to validate and recalculate the match with the same rules package. This does not publish a public replay page.