Here is the full list of all 26 Dread Hunger achievements.
Win every map as every character
Get an S rating with every character
Skipper the ship for 10 nautical miles
As a Thrall, win by sinking the ship
Win 20 games of poker
As a Thrall, win without either Thrall causing direct damage to another player
Destroy all the totems in the tutorial
Complete the tutorial
As a Thrall, use the nitro to explode 3 Explorers at once
Poison the ingredients of the crew's stew
As an Explorer, survive an entire match without eating any meat
Build a totem on the ship
As a Thrall, claim a musket
Build a totem
As an Explorer, win a game without hitting an iceberg
As an Explorer, win while 100% cannibal
Max the boiler fuel gauge
Kill a polar bear with your bare fists
As an Explorer, win a game
Craft a satchel
Cook a stew
Invite a friend aboard
Put coal in the boiler
As a Thrall, win by sailing the wrong way
Win a game without your heat or hunger ever fully depleting