How to Survive the Betweenlands: Gear, Hazards, and Food
Armor and Tools
The Betweenlands has its own progression. Start with Betweenstone tools, then work toward Amphibious armor (Helmet, Chestplate, Leggings, Boots) which helps with swimming and underwater travel, and later Ancient armor for stronger protection. The Ancient Battle Axe and Ancient Greatsword are heavy hitters worth crafting once you have the materials. Always carry a shield — many mobs hit hard.
Environmental Hazards
The swamp is full of dangers beyond mobs. Murky water can hide hostile creatures, and some plants and blocks inflict status effects on contact. Bring Amphibious Boots early to move through water safely. Watch for Swamp Hags that curse you and Blood Snails that drain health. Light up your base and paths with torches or Betweenlands light sources to reduce spawns.
Food and Healing
The Betweenlands has unique flora and fauna you can cook. Fish with the Amphibious Fishing Spear, gather safe plants, and avoid eating anything that looks suspicious until you know its effect. Keep a stack of safe food and a bed or respawn anchor near your portal so a death doesn't strand you deep in the swamp.