Ruinmark's PVP Map V3

Included behavior packs:
- Ruinmark's Kit Mod
- Ruinmark's Instant Mushroom Stew

Ownership and redistribution terms are in RUINMARK_LICENSE.txt.
The packs are registered in world_behavior_packs.json.
Please test a copy of the world first. Pack/API compatibility depends on your Minecraft version.
