MMNM Structure Respawns is a server-side Forge add-on for Minecraft 1.16.5 that repopulates Marine bases and Pirate ships from Mine Mine no Mi.
The mod uses InControl’s custom spawning system to periodically attempt NPC respawns inside supported structures. Respawning only occurs while a player is within 100 blocks, with an average attempt interval of approximately five minutes. Local population limits prevent mobs from building up endlessly.
Supported structures include:
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Marine Camps
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Marine Watch Towers
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Marine Small Bases
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Marine Large Bases
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Marine Battleships
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Pirate Small Ships
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Pirate Medium Ships
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Pirate Large Ships
The add-on uses the original Mine Mine no Mi entities, so they retain their normal AI, equipment, stats, drops, rewards, and behavior. It also works with previously generated structures, even if their original hidden spawner is no longer present, provided Minecraft still recognizes the structure location.
When the server starts, the mod automatically adds its rules to config/incontrol/spawn.json and config/incontrol/spawner.json. Existing rules are preserved, and backup copies are created before the files are changed. Clients do not need to install the add-on.
Requirements:
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Minecraft 1.16.5
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Forge 36.2.39 or newer
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Mine Mine no Mi 0.10.11
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InControl 1.16-5.2.12
This is an unofficial community add-on and is not affiliated with the Mine Mine no Mi development team.

