Fishing in Solarpunk is a magnetic rod mini-game, not real fishing, and copper comes from a nearby island you reach with your first dock and airship.
How to fish in Solarpunk
Step 1: Craft the magnetic rod
Make the Fishing Rod at the Crafting Table using 5 Sticks, 2 Stone, and 4 Iron. The game’s fishing system is actually magnet fishing, so the rod is built to retrieve materials from water rather than catch fish.

Step 2: Cast into water
Stand near any lake or pond and use the rod’s primary action to cast.

Watch the swimmer or bobber on the surface instead of expecting a bite animation like a normal fishing game.

Step 3: Reel at the dip
Pull the rod back the moment the swimmer dips or splashes. Timing matters: too early or too late loses the catch, and the usual starter water gives early-game materials like leaves, sticks, clay, sand, and cotton.

Step 4: Read the lake loot
Different lakes can drop different items, so fishing one island may not match another. The fishing system can also be automated later with the Algae Drone, which needs power and generates Algae over time for tech crafting.
How to find copper
Step 1: Unlock basic travel
Build your first dock, then craft your first airship so you can leave the starter area.

Copper is not in the starter pond, so travel is the real gate to getting it.

Step 2: Fly to the nearest island
Head to the nearest visible island within range of your starting circle and land the airship on solid ground.

The copper spot is typically close enough to reach early, so you do not need a long expedition.
Step 3: Look for the copper rocks
Search for the small cluster of copper rocks or the copper node on that island. There are usually about three copper rocks you can mine right away, plus more from the node itself.

Step 4: Bring spare tools
Take extra pickaxes and enough basic crafting materials to make replacements on the spot. Copper mining can chew through a pickaxe fast, so a spare-tool loop saves a lot of time.

Critical mistakes to avoid
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Do not waste time trying to fish copper out of the starter pond; that water only gives early resource loot.
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Do not expect normal fish behavior; the rod works like a magnet and rewards timing, not patience.
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Do not go to the copper island with just one pickaxe if you plan to mine everything there.
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If the airship cannot reach the island comfortably, build the dock and airship progression first instead of forcing the trip.
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If you want a sustainable loop, replant and tidy the island after harvesting so you do not strip it bare.
Copper and fishing rewards
This route saves early-game time because it separates the two progression gates cleanly: use the magnetic rod for starter materials, then use your first airship trip for copper. That means faster tool upgrades, less random wandering, and fewer wasted pickaxes on the wrong island.