Here is the full list of all 74 Factory Town Idle achievements.
Have a town older than 30 calendar days
Collect 100 Hours of idle progress
Have a town older than 7 calendar days
Reach Town Level 50 in all 8 Biomes
Beat the Game (!?)
Reach Town Level 40 in 7 Biomes
Reach Level 40 in any Town
Complete 100 levels of Infinite Research
Earn 1 Star Coins
Earn 1 OmniCoin
Unlock All Sellable Items (137) and Have 100% Market Fulfillment in all of them
Build 150 Houses in a single Town
Make 1K Magic Potions
Unlock All (160) Items
Make 1K Magic Hats
Reach Town Level 30 in 6 Biomes
Reach Level 30 in any Town
Reach 100% Market Fulfillment with 100 Items
Earn 1 Purple Coin
Start a Town in the Magic Biome
Start a Town in the Snow Biome
Start a Town in the Desert Biome
Reach Town Level 20 in 5 Biomes
Start a Town in the Jungle Biome
Reach Town Level 10 in 4 Biomes
Start a Town in the Mountain Biome
Earn Town XP at the rate of 1M / sec
Have 3 Towns at level 15 or more
Reach a Market Fulfillment score of 400
Make 1K Pear Juice
Harvest 1K Berries
Start a Town in the Forest Biome
Reach Level 20 in any Town
Make 1K Gold Crowns
Build 60 Houses in a single Town
Make 1K Rail Tiles
Complete 100 Research
Make 1K Sandwiches
Earn 1B Coins from selling items
Reach 100% Market Fulfillment with 50 Items
Make 1K Cakes
Make 1K Apple Jam
Make 1K Refined Sugar
Complete 50 Research
Build 10 Wells
Build 10 Houses in a single Town
Build 25 Houses in a single Town
Start a Town in the River Biome
Complete 10 Research
Complete 25 Research
Make 1K Warm Coats
Complete 50 Quests
Harvest wood from trees at 1K / sec
Earn 1 Blue Coin
Make 1K Books
Reach 100% Market Fulfillment with 25 Items
Craft 500K Items
Reach a Market Fulfillment score of 100
Earn 1M Coins from selling items
Make 1K Eggs
Reach Level 10 in any Town
Make 1K Fire
Earn 1K items by clicking
Earn 100 Quest Coins
Earn 200K Coins from selling items
Craft 50K Items
Reach 100% Market Fulfillment with 10 Items
Earn 25K Coins from selling items
Craft 5K Items
Earn 1 Red Coin
Earn 5K Coins from selling items
Craft 500 Items
Earn 1 Yellow Coin
Start a Town in the Plains Biome