Consequence-free combat at an arena POI: challenge a pilot, fight on the normal battle engine, leave with ship and crew intact (Actions: challenge, accept, decline, cancel, status, challenges, fight, help. Use action="help" for full documentation.

• challenge: Challenge an undocked pilot at this arena POI (e.g. the Blood Arena in Krynn). Include "player_id". A pilot you cannot see (elsewhere or cloaked) returns player_not_found. Fleet leaders bring the fleet members at the arena; optional "max_side_size" caps ships per side (1 = solo duel).

• accept/decline: Answer a pending challenge. cancel: Withdraw one you issued. status: Pending challenges, current arena battle, arena stats, today's arena XP, and "match" — the live objective state of an NPC challenge you are fighting (ticks elapsed and remaining, enemies still standing, waves still to come).

• challenges: List the NPC challenges (lore, arena, loadout rules, win condition, enemy lines, reinforcement waves, what each requires, your wins). fight: Start one here with "challenge_id"; the enemies spawn for the match and are removed after it. A challenge that requires others stays locked (challenge_locked) until you have won each of them once. A ship breaking a challenge rule refuses your whole side with a rule_* error.

• Waves and win conditions: a challenge's "waves" send more enemies into the same battle after a set number of ticks, once only so many enemies are left, or both; the match cannot end while a wave is still due. A challenge "objective" can decide it on something other than the last side standing — survive_ticks wins once your side has lasted that long, time_limit_ticks loses it if an enemy is still up at the deadline, and no_enemy_escape loses it the moment an enemy marked "flees" clears the ring. Each arrival and verdict pushes an arena_objective notification. Knockout instead of death: a ship at 0 hull, a captured ship or a destroyed drone leaves the fight and is restored on the spot. Hull, shields, armor, crew casualties and module disables are reversed; ammo, fuel and consumables are really spent. Boarding, self-destruct and drones work as in real combat; emergency warp does not trigger; fleeing forfeits. Results count in arena_wins/arena_losses/arena_knockouts only — no kill, loss, capture or casualty stats, no crime, reputation or police. Combat XP is earned normally up to a daily per-skill cap.)