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