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