Here is the full list of all 69 Golden Rails: Harvest of Riddles achievements.
Got all level-3 achievements.
Built 70 railway sections.
Planted 25 gardens.
Completed Extra Levels.
Completed Extra Levels with 2 stars.
Completed Extra Levels with 3 stars.
Planted 20 gardens.
Collected 400 vegetables.
Completed Finale.
Completed Finale with 2 stars.
Completed Finale with 3 stars.
Found all the owls.
Completed 5 mini-games with 3 stars.
Found all the clues.
Collected 200 vegetables.
Completed Ghost Town.
Completed Ghost Town with 2 stars.
Completed Ghost Town with 3 stars.
Planted 10 gardens.
Built 100 houses.
Collected 200 tools.
Completed Prairies.
Completed Prairies with 2 stars.
Completed Prairies with 3 stars.
Collected 500 letters.
Built 50 railway sections.
Got all level-1 achievements.
Got all level-2 achievements.
Found 30 owls.
Arrested 50 bandits.
Collected 100 tools.
Completed Warehouses.
Completed Warehouses with 2 stars.
Completed Warehouses with 3 stars.
Completed 3 mini-games with 3 stars.
Collected 100 sticks of dynamite.
Arrested 30 bandits.
Collected 200 letters.
Built 50 houses.
Collected 20 tools.
Completed Town.
Completed Town with 2 stars.
Completed Town with 3 stars.
Collected 50 sticks of dynamite.
Found 5 clues.
Collected 10 letters.
Collected 10,000 units of iron.
Collected 10,000 units of wood.
Completed Farmland.
Completed Farmland with 2 stars.
Completed Farmland with 3 stars.
Collected 10,000nits of money.
Collected 4000 units of iron.
Collected 10 sticks of dynamite.
Arrested10 bandits.
Collected 10,000 units of food.
Collected 4000 units of money.
Built 10 railway sections.
Collected 4000 units of wood.
Built 10 houses.
Found 1 clue.
Completed a mini-game with 3 stars.
Found 5 owls.
Collected 4000 units of food.
Collected 10 vegetables.
Collected 100 units of money.
Collected 100 units of iron.
Collected 100 units of wood.
Collected 100 units of food.