Core Keeper: Beginner's Guide & Best Tips

This Game Will Kick Your Ass (And You'll Love It)

Look, I'm gonna be straight with you. Core Keeper looks like a cute little mining game where you dig up dirt and cook some mushrooms. That's the lie the store page sells you. The truth? This game is a survival-crafting time-sink that will absolutely wreck your sleep schedule, and I mean that as a compliment. I've got 400+ hours across four different worlds, and I still remember my first ten hours — I spent most of them either dead, lost, or staring at a crafting menu wondering why I couldn't make a simple iron bar.

What makes this game special is the pacing. You start with a pickaxe and a torch, completely blind in an underground cavern. No quest marker. No hand-holding. Just you, the dirt, and a growing sense that something big is lurking in the darkness. The progression feels earned — every new crafting station, every boss kill, every time you finally bridge that gap to a new biome — it all hits harder because the game doesn't give you anything for free. You have to claw for it.

But yeah, there's some BS too. The early game hunger mechanic is brutal, the map generation can screw you with bad chokepoints, and the first boss? He's a filter. A lot of people quit right there. I almost did. My first run, I walked in with a copper spear and a dream, and Glurch the Slime King sat on me like a cartoon anvil. I didn't know about the movement speed buffs. I didn't know you could kite him around the slime pools. I just got squished and lost everything in my inventory. That's the Core Keeper experience, baby.

Why You're Probably Stuck Already

Let me guess. You're reading this because something went wrong. Maybe you can't beat the first boss. Maybe you keep running out of food. Maybe you spent three hours digging in the wrong direction and found nothing but pain. I've been there. Here's what's actually happening:

• You're not eating the right food. Raw mushrooms are for peasants. You need Glow Tulip Salad (2 Glow Tulips + 1 Fiber) for stamina and Bomb Pepper Roast (2 Bomb Peppers + Any Meat) for damage. Gold food is a luxury, not a necessity. If you're dying to hunger, you're not planting seeds. Set up a farm plot within your first 30 minutes. I'm dead serious.
• The first boss (Glurch) is a DPS check, not a skill check. You don't need to dodge perfectly. You need a Copper Sword at +5 and at least 3 Health Potions. That's it. Run in circles around the outer edge of the boss arena. When he slams and leaves slime patches, move clockwise. If you stop moving for more than half a second, you die. I had a friend who tried to tank him with a shield and got flattened in four hits. Don't be that guy.
• You're hoarding resources. Stop it. That tin ore? Smelt it. Those glowing larvae? Cook them. I used to hold onto everything "in case I need it later," then I hit the second biome with a wooden pickaxe and got eaten by a giant bug. Use your stuff. The game is designed to make you spend resources to progress. Your chest is not your retirement fund.

The biggest lie the tutorial tells you is that you can just dig anywhere and find your way. You can't. The biomes have specific entrances. If you're digging in the Dirt Biome and haven't found the Clay Caves after an hour, you're going the wrong direction. Follow the dirt veins. Seriously, look at the ground color. Orange-ish dirt? You're near Clay. Grey stone? You're going towards the Forlorn Metropolis. If you're just digging straight down like Minecraft, you're gonna hit the void and cry.

First 2 Hours: What Nobody Tells You

Alright, fresh restart. The Core. You spawn. Grab your starter pickaxe. Ignore the glowing wall — that's the boss room, and you're not ready. Here's your actual checklist for the first two hours:

1. Build a base at the Core (the big glowing crystal). I know you want to build a cozy cabin somewhere else. Don't. The Core auto-lights a huge area, it has a repair station, and it's the center of the map. Building anywhere else means longer runs, more deaths, and more rage. My first base was in a random dirt tunnel and I spent half my time running back to it in the dark. Learn from my stupidity.
2. Craft the Basic Workbench and Anvil immediately. Upgrade your pickaxe to Copper first, not the sword. A copper pickaxe mines 3x faster than the starter one. Then make a Copper Sword and a Wooden Shield. You'll use that shield for way longer than you think — it blocks 100% damage if you time it right, but it has a cooldown. I still use it in the third biome sometimes, sue me.
3. Plant 4 crop plots. Now. Not "after I explore." Right now. Dig up some soil with your hoe, plant Carrots and Wheat. You get seeds from breaking yellow grass. Cook the carrots for basic hunger, turn wheat into bread. If you aren't farming in the first hour, you'll be dead to starvation by hour two. I'm not exaggerating.
4. Find the Dirt Biome exit to the Clay Caves. The path is usually northeast or northwest of the Core. You'll know you're there when the ground turns reddish-brown and the background music gets tense. Don't go deeper into the Dirt Biome — that's a dead end. The game's map is like a series of rings. Dirt is the first ring, Clay is the second. If you're digging outward from the Core and hitting stone, you're going too far. Back up.
5. Make a bed and set your spawn. You can craft a bed with 8 wood and 4 fiber. Place it near the Core. If you die, you respawn there instead of the random start point. I died to a slime on my way back from a mining trip and respawned at the edge of the map, 5 minutes away from my stuff. The bed mechanic is not explained anywhere. Now you know.

Your first hour is about survival, not exploration. Food, upgrades, and a safe base. Then you can start poking at the first boss. I told you this was real talk, right? Good.

The Stuff I Learned By Dying 50 Times

Once you've got the basics down, the game opens up. But there's a bunch of stuff the depth doesn't teach you. Here's the knowledge that took me three playthroughs to figure out:

• The Flamethrower is a trap weapon. Everyone online hypes it. It does 45 base DPS and ramps to 120 DPS after 3 seconds of continuous fire, which sounds amazing. But it consumes 5 energy per second, and the range is garbage. You'll run out of energy fighting the second boss and get stunlocked. The Iron Hammer with a +5 upgrade and a speed ring is actually better — it deals 65 damage per swing, hits multiple enemies, and doesn't eat your energy bar. I switched to the hammer after getting wrecked by the Hive Mother twice. Never looked back.
• Magnetism is your most important stat for the first three biomes. Every time you loot an item that gives +magnetism (like the Magnet Ring from the Clay Caves), equip it. Magnetism increases your pickup range. Why does this matter? Because when you're fighting a boss or a swarm, you need to pick up health and mana drops without walking into enemy fire. With +3 magnetism, I can pick up healing orbs from across the arena. It's the difference between living with 10 HP and dying because you couldn't reach a drop. Stat priority early: Magnetism > Move Speed > Damage. I'll die on that hill.
• The Great Wall exploit (nerfed but still works). In the Clay Caves, there's a structure called the Great Wall — it looks like a giant stone face. If you build a Conveyor Belt underneath the wall's water flow, the water will push items into a single tile. You can AFK-fish there for Fish Bones and Glowing Larva without any fishing gear. I got 40 Fish Bones in 15 minutes. The devs tried to patch it, but the water physics still work that way in single player. Don't tell anyone I told you.
• Don't upgrade your armor past +3 until you beat the fourth boss. The material cost goes up exponentially — +4 takes 4 bars and +5 takes 8 bars. You need those bars for tools and weapons. Armor gives diminishing returns early on. A tin armor +3 is fine until the Forlorn Metropolis. Spend your upgrades on the pickaxe and your weapon first. I learned this the hard way when I had +4 armor and a +2 pickaxe, and mining took forever while I could take two extra hits nobody was landing on me.
• Set up a portal network as soon as you get the Portal Station. You can craft it after beating the second boss. Place portals at key chokepoints: the entrance to each biome, your farm, and the boss arenas. I have 8 portals in my current world. Each one costs 20 wood and 5 fiber, practically free. If you're walking more than 30 seconds to get anywhere in the mid-game, you're doing it wrong. The portal is the best QoL item in the game and it's not close.
• Fishing is not optional. I know, you hate fishing in games. Me too. But Core Keeper ties fishing to recipes and souls. Specifically, you need Fish Bones for the Fishing Mastery skill tree and for certain cooking recipes that give +40% damage. You can fish in the Slime Biome pools for easy catches. Crank your fishing skill to level 10 and you unlock the Lure that auto-fishes. It's a grind, but it's worth it. I resisted fishing until hour 60. Don't be me.

Mistakes That'll Wipe Your Save (Or Your Sanity)

I've made every mistake this game has to offer. I'm about to save you from them. Read this list twice:

• Not bringing backup tools. Your pickaxe breaks mid-dig? You're trapped in a bug cave with no way out. I had a world where my pickaxe broke at depth 150, I had no wood to make a new handle, and I had to suicide just to respawn at my base. Lost all my ores. Now I carry a spare copper pickaxe in my inventory at all times. It takes one slot. Worth it.
• Fighting the first boss without a clear arena. The boss room is small and filled with slime pools that slow you. Clear out all the enemies in the room first, then place 4 campfires in a square pattern. The campfires provide light and mild healing over time. I didn't do this my first time and I kept running into walls. It's the difference between a 3-minute fight and a 10-minute panic.
• Ignoring the Rune Song merchant. There's a cat-like NPC that appears randomly in the Dirt Biome. He sells Rune Stones and Mysterious Idols. I thought he was a scammer — his prices are high, 30 coins for a stone. But Rune Stones are needed for the Obelisk Puzzle in the Forlorn Metropolis. Without them, you can't access the third boss. I spent 4 hours hunting for them in the wild before I realized the cat sells them. Buy two the moment you see him. Mark the spot on your map.
• Death running to your tombstone. When you die, a gravestone appears with all your items. If you die again before retrieving it, it despawns and your items are gone forever. I lost a full set of Gold Armor for this reason — I got cocky, died to a swarm, ran back unarmed, died again to the same swarm. Permanent loss. Rule: If your tombstone is more than one minute away, gear up with spare equipment first. Craft a cheap set of tin armor just for retrieval runs. I keep a "death kit" chest next to my bed now.
• Using the Hoe on random ground. The Hoe tills soil, but only where the ground is brown and has grass. If you till stone or clay, you just waste durability. You need to find fertile soil — it looks darker and has small roots. The best spot is near water sources in the Dirt Biome. I tilled a huge area of clay once and wondered why nothing grew. It doesn't work. Check the ground type before you spend 10 minutes farming.
• Selling everything to the NPCs. The merchants buy items for 1 coin each for common items. That's terrible value. You can sell weapons and tools for more if you repair them first — a damaged copper chestpiece sells for 1 coin, but a repaired one sells for 12. Use the Repair Station (free) next to the Core before you sell anything. I used to throw away broken gear and lost thousands of coins over time.

Questions You're Too Embarrassed To Ask

These are the questions I see in the Discord every single day. Here are the real answers:

Q: How do I find the second boss (Hive Mother)?
A: She's in the Clay Caves, inside a large structure that looks like a giant egg. The entrance is on the outer edge of the biome. Look for a pinkish glow on your map. You need to defeat Glurch first — his summon item drops the key. Don't try to dig through the walls to get in early. I tried. It's blocked by the same indestructible bedrock as the Core.

Q: My hunger bar won't stop draining. What do I do?
A: You have a food buff that increases hunger drain rate. Check your active effects. Some meals like Meaty Stew give high hunger but also increase drain rate by 20%. Switch to Bread (2 wheat, 1 water) for a steady fill with no drain penalty. Also, standing near Glow Tulips drains hunger slower. Farm them.

Q: Is there a way to teleport back to base without dying?
A: Yes. Craft the Recall Idol — it's a consumable that teleports you to the Core. You need 5 Tin and 3 Fiber. It's single-use and costs a little health to activate, so use it only in emergencies. I keep one in my hotbar at all times. Alternatively, build a portal network (see tips above).

Q: Why are my drills not working on ore deposits?
A: Drills only work on large ore boulders, not small ground tiles. The big glowing rocks that take 10 hits — those are minable with a drill. Small copper/tin spots on the ground are for manual digging only. I wasted 20 minutes trying to automate tin mining before I figured this out. Also, drills need power — you need a Generator or Solar Panel nearby. Without power, they're just expensive decorations.

Q: The third boss (The Giant Bug) keeps summoning minions. Help?
A: The Ivy boss in the Forlorn Metropolis spawns small bugs every time you hit it. The trick is to use a Piercing weapon (like the Pewp Gun you get from a merchant) and kill the minions first. Don't ignore them — they stack poison and you'll die in 3 ticks. I bring a Poison Ward Ring (crafted from 5 Fiber and 3 Glowing Larva) to negate the damage. Without it, you'll need to heal constantly. The fight is a marathon, not a sprint.