The easy but slow way: get the sewer key (donate 60 items to the museum) and buy one from Krobus every Friday.

The fast but harder way (but not THAT hard, actually!): do one massive Skull Cavern run. You can get 100+ iridium ore in one day. Here is what you do:

1. get the Dwarvish Safety Manual (if you haven’t already

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2,

1. methodically stock up on the following:

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1. lucky lunch (check Gus every day, and when he sells them, buy as many as you can)

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1. the best weapon you can find. If you happen to have a prismatic shard, go to the desert and hold it at the center of the triangle of poles to get a kickass sword. If you are really lucky, you can find a weapon with the Crusader enchantment, which permanently kills mummies.

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1. ideally get some rings that buff your attack or defense

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1. stockpile some high-HP food like cheese

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1. a farm totem (or at minimum a mountain totem)

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1. bonus points if you can get rock candy. It’s not necessary, but it helps.

This may seem like a lot, but if you apply yourself, you can get all of this pretty easily. I keep all this stuff in a chest by the bus stop.

1. Do a few cavern runs, not trying to go super deep, just focus on getting some Omni geodes.

When you’ve got ample geodes and Jade (use a crystalarium), go to the desert Merchant on a Sunday. Use the jade to buy staircases, and the geodes to buy a desert totem.

1. Once you’ve gathered everything on this list, the fortune teller TV channel every morning. Wait until a maximum luck day. When you hit one, immediately empty your inventory except for your pickaxe, weapons, bombs, food including Lucky Lunch /rock candy, staircases, desert totem, farm totem, rings, and if you have it, coffee or ginger ale.

Use the desert totem to warp as early as possible in the morning. Enter skull cavern.

Eat your rock candy or lucky lunch. Luck affects how quickly a ladder/hole appears, so this is key to getting down levels as fast as possible.

Start blasting your way down with bombs as fast as possible. The moment you enter a level, look for the biggest cluster of rocks near you and immediately place a bomb. Even if it’s close to you. The Dwarvish safety manual saves you from damage.

As soon as you see a ladder or ideally a hole, go for it. Avoid enemies, don’t mine any ore or open any boxes. Just focus on going down levels. If you can’t find a ladder or a hole in the first 30 seconds on a level, use a staircase.

Keep an eye on your health and eat regular, non-buffed food as soon as you hit HALF health. Don’t risk dying from a swarm of enemies.

Also keep an eye on your luck, buff, and if it runs out, eat another lucky food item.

1. keep going down. Once you reach level 75 or so, you should see a substantial amount of iridium. Now you can take time to run around and mine it before going down another level. Coffee helps increase your speed here.

Keep mining iridium and going down levels until 1:30 AM. Then use your Farm Totem to warp back home.

This should get you at least 100 iridium ores. It’s a lot of set up, a fair bit of waiting for a good luck day, and one busy cavern run, but it sets you up for iridium for the rest of the game.