Here is the full list of all 59 Boundless achievements.
Defeated 180 different Creature variants
Defeated 1,000 Creatures
Defeated by a falling Meteorite
Placed 1,000 Plots
Successfully revived your first Citizen
Spent 500,000 Coin in Shop Stands
Achieved a Beacon Prestige rating of 500,000
Activated 20 unique Skills simultaneously in a single Skill Set
Became Warden of a Settlement
Became Viceroy of a World
Purchased your first Item with a Request Basket
Defeated a Creature with 1% Health remaining
Chiselled 10,000 Blocks
Consumed 1,000 Items
Unlocked your first Skill Set
Complete 100 Active Meteorites
Fully upgraded a Skill Set
Achieved level 50
Crafted 100,000 Items with Machines
Achieved level 40
Destroyed 100,000 Blocks
Completed all Daily Feats of the same type in a single week
Travelled 100 metres by a single Grapple-swing without touching the ground
Sold your first Item in a Shop Stand
Placed 50,000 blocks
Discovered 50 Regions on a single World
Achieved level 30
Crafted your first Item using Spark
Successfully completed your first Trade with another Citizen
Reached the top of the World
Mined right down to a World's Mantle
Achieved level 20
Cleansed 10 Skills
Travelled to a new World through a Citizen made Warp
Achieved level 10
Completed your first Journal Objective
Chiselled a Block for the first time
Learned your first Skill
Destroyed your first piece of Gear
Joined a Settlement
Placed and Fuelled your first Beacon
Travelled through a Portal
Discovered a new Region for the first time
Left the sanctum for the first time
Core Objectives completed
Completed 185 Journal Objectives
Completed 675 Feats
Fully upgraded all Skill Sets
Successfully increased the rank of an Item with the Forge
Increased the rank of an Item in the Forge to 300
Forged an Item with 3 Boons, 3 Defects and 3 Quirks
Successfully revived 500 Citizens
Completed a Meteorite on a Special World without being Defeated
Earned 500,000 Coin from Beacon Footfall
Defeated 5 Creatures at the same time in a single Bomb Hit
Harvested 100 Dormant Meteorites
Visited 40 Worlds of different types
Fell 200 meters without being Defeated
Survived on a Special World for 2 hours without Defeat