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The ocean is often a lonely place in the world ofAnother Crab’s Treasure. While there are cities and towns, Kril is often on his own or faced with ocean life gone mad from Pollution. It’s just one little hermit crab and his shell against it all – unless you get yourself some Stowaways.
Stowaways are handy little creatures that can be equipped on your shell and provide you with all sorts of different buffs. Each has their own capacity though, and you can’t just equip every one you want. If you want to have all the best Stowaways on your shell, you’ll need to raise your Stowaway Capacity.

How To Increase Stowaway Capacity
To increase your Stowaway Capacity past the base capacity of three, you’ll first need tobeat Duchess Magistaandreach New Carciniaonce the upper westdoor in the main hall has opened up.
If the door closest to the Duchess' throne roomhasn’t opened yetafter beating her,try leaving Fort Slacktide, teleporting back, thengoing into her throne room and walking out again.
Once you’re in New Carcinia, headdown to the Lower Crustand over to theBottom Feeder tavern near the centerof the area andspeak to Poli, the child on the left side. If youcan’t buy from Poli, you’ll need toprogress in the storyenough tostart the treasure hunt.
They’ll give you the option toincrease your Stowaway Capacityin returnfor microplastics, and each upgradeadds one additional capacity point, up to amaximum of nine.
1st
2,500
2nd
5,000
3rd
10,000
4th
20,000
5th
30,000
6th
40,000