Full list of all 27 Pit People achievements worth 1,500 gamerscore. It takes around 20-25 hours to unlock all of the achievements in the base game on Xbox One.
The base game contains 14 achievements worth 1,000 Gamerscore, and there is 1 DLC pack containing 13 achievements worth 500 Gamerscore.
Get a Quadra Kill
Someone reaches level 80
Win the INSANE unfair challenge
Recruit 1 of every creature type
Win an online versus battle in The Pit
19,999 Gold on-hand
Find a secret area in any worldmap
Beat any team of Elites in the wild
Successfully complete a full Quest series
Get Pip's Revenge
Horatio or Hailey reach level 20
Run over 10 enemies using the wagon's nitro boost
Get a full squad of 6
Defy the Narrator.
Kill 300 enemies
Save a replay
Watch a replay
Complete two quests in one outing on the world map
Complete 15 Bonus Missions on the world map
Defeat a Fortress
Do 100 points of damage in a single turn
Earn 1234 Pit Points in a day
Complete the Story
Recruit an Elite
Complete 5 quests in an outing on the world map
Win 20 Battles in PermaDeath
Defeat an Elite Team in PermaDeath