You must be logged into a game account in order to earn achievements.
You must be connected to the Internet (required to keep achievements synced with your account in the cloud).
Here is a complete list of achievements in the current game:
Missions
Charmless - Get rejected by a potential mate.
Happy Together - Get a mate!
No Place Like Home - Choose a den.
It’s Mine, All Mine - Mark your territory in Slough Creek.
Because I Said So! - Finish training your pups.
Nobody Messes with Me - Finish defending your den.
Ready for a Journey - Finish feeding and growing your pups.
Survival of the Pack - Bring your pups to the rendezvous site.
That Was a Squeaker - Reach the rendezvous site with one pup, on Easy
& Then There Was One - Reach the rendezvous site with one pup, on Challenging
The Lucky One - Reach the rendezvous site with one pup, on Arduous
Last Pup Standing - Reach the rendezvous site with one pup, on Bring It On!
A Howling Success - Reach the rendezvous site with four pups, on Easy
Happily Ever After - Reach the rendezvous site with four pups, on Challenging
Through the Gauntlet - Reach the rendezvous site with four pups, on Arduous
Against All Odds - Reach the rendezvous site with four pups, on Bring It On!
One Big Happy Family - Multiplayer - Raise your pups and take them to the rendezvous site.
The Ranch Bandit - Kill the calf at the cattle ranch.
Bark Bark BANG! - Lose your life at the cattle ranch
Actions
What Smells? - Use scent vision.
Natural Selection FTW - Kill 1 cow elk.
Thinning the Herd - Kill 10 cow elk.
Tired of Elk Meat - Kill 100 cow elk.
Bulls-Eye! - Kill 1 bull elk.
Matador - Kill 25 bull elk.
Teamwork - Multiplayer - Work with your pack to kill an elk.
Strength in Numbers - Multiplayer - Work with your pack to kill a bull elk.
A Tasty Morsel - Kill 1 hare.
I’m Hunting Wabbits! - Kill 10 hares.
The Hare Slayer - Kill 100 hares.
Coyote Killer - Kill 1 coyote.
Coyote Nemesis - Kill 10 coyotes.
Coyote Exterminator - Kill 100 coyotes.
Nervy - Chase away 1 grizzly bear.
Gutsy - Chase away 10 grizzly bears.
Fearless - Chase away 50 grizzly bears.
To the Skies - Chase away 1 eagle.
Eagle Eye - Chase away 10 eagles.
You’re Ill-Eagle! - Chase away 50 eagles.
Puppy Rescuer - Chase away 1 predator wolf.
Quick-Footed - Chase away 10 predator wolves.
Defender in Chief - Chase away 50 predator wolves.
A Mighty Wolf - Win 1 encounter with a stranger wolf.
Big Bad Wolf - Win 10 encounters with a stranger wolf.
King of the Hill - Win 50 encounters with a stranger wolf.
Secret Hideaway - Earn 7,500 experience points to unlock the secret den.
Fairest of Them All - Earn 15,000 experience points to unlock a pure white puppy.
Bad Parent - Lose a puppy to starvation.
Natural Selection Sucks - Lose a puppy to a predator.
An Error in Judgement - Lose your life to a grizzly bear.
Places
Really Old Trees - Visit the Fossil Forest.
Scorched Land - Visit the Burn.
Hangin’ with the Druids - Visit the Druid pack’s territory.
A Fine Specimen - Visit the Specimen Ridge pack’s territory.
Slough Who? - Visit the Slough Creek pack’s territory.
Jack of All Territories - Visit all three stranger wolf territories in Amethyst Mountain.
Lose Something? - Find the boot on Amethyst Mountain.
Cold Ashes - Find the campfire on Amethyst Mountain.
Almost Pristine - Find all human traces on Amethyst Mountain.
Under the Broken Tree - Visit the Saddle Meadows den.
Just a Pile of Rocks - Visit the Aspen Heights den.
Under the Fir Tree - Visit the Bison Peak Cutoff den.
Just Being Thorough - Visit all three den sites before choosing one.
Smelly Leather - Find the boot in Slough Creek.
Ring of Fire - Find the campfire in Slough Creek.
Rolling, Rolling, Rolling - Find the wagon wheel in Slough Creek.
They Went Thataway - Find the trail sign in Slough Creek.
Boots Made for Walking - Find the bootprints in Slough Creek.
Seen It All - Find all human traces in Slough Creek.
Eye in the Sky - Visit the Lost River fire tower.
A Spot of Comfort - Find the old sofa in Lost River.
Home on the Range - Visit the abandoned camper in Lost River.
Unauthorized - Visit the locked Gate in Lost River.
The Two-Step - Visit the Lost River waterfall viewpoint.
Tanks for the View - Get a good view of downtown and Hank’s Ditch.
Where’s the Other? - Find the boot in Lost River.
Ashes to Ashes - Find the campfire in Lost River.
Dizzy - Ride the Twister in Lost River.
No Exit - Try to find a way out of Lost River.
Roof and Four Walls - Sit in a home of your own.
Drainage - Visit the sewer drainage in Lost River.
Grand Tour - Find all the achievements in Lost River.