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