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