Target Geode Topside bosses for chances at Cosmic Gem Boxes.
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WHERE & HOW TO FARM
Where to farm
Geode Topside Adventure World, in an Uber world your character qualifies to enter.
Geode Topside’s dungeon bosses can award Cosmic Gem Boxes, making boss encounters the focused route when Cosmic Gem progression is the goal. A box is a possible reward rather than a guaranteed one, so the loop is to enter an eligible Topside world, locate and complete a boss dungeon, then compare any resulting gem with your current setup. Ordinary dungeon clears are useful for Crystal gear chances, but they are not interchangeable with the specific boss reward target.
Meet the displayed Power Rank and Light requirements for the selected world.
Combat build able to defeat that world’s dungeon boss.
Inventory space for gem boxes and comparison items.
Check the Topside Uber requirements and enter the highest tier you can complete reliably.
Explore a sub-biome for a dungeon with a boss encounter.
Activate the dungeon encounter by finding its Dark Heart when applicable.
Defeat the boss and collect the reward chest.
Check whether the chest awarded a Cosmic Gem Box; do not assume each boss will.
Open any box and compare the gem against your current Cosmic Gem setup.
Repeat boss dungeons while the box remains your progression target.
Farming tips
Topside bosses are the box target; routine dungeon clears are a better fit when you want Crystal gear chances.
The Topside areas share dungeon and monster sets, so choose terrain you can navigate comfortably.
Repeat, collect and use
Repeatable chance-based farm. Bosses may award boxes, but no box is guaranteed per encounter.
Common mistakes
Counting any dungeon completion as a guaranteed box: finish boss encounters and treat boxes as a chance.
Entering a tier above your requirements: verify both Power Rank and Light before travel.
Equipping a box result automatically: compare its stats and fit with your current gem build.
When to stop or switch
Stop when you obtain a useful upgrade or your current boss tier becomes inefficient; switch to accessible dungeons or gear progression if clears stall.
