(version v1.4.3.2 as of writing)

This is a standalone guide about how to obtain ALL achievements. It's worth noting there are obviously many ways to play the game. Here I am only recommending what I found to be the easiest methods. By following this guide (assuming no critical mistake is made), you too should be able to get all achievements in only 2 runs!

All the builds I'll be referencing are detailed in the following guide:
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=3434001252
As for general tips and overview of basic mechanics, see this guide as well:
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=3441649878

• Type 1 - Do certain things
  
  • Seven Seas Explorer - Buy 200 islands
    
  • Plant a Tree - Plant 350 trees
    
  • Architect of Utopia - House 500 sheeps
    
  • Noah's Ark - House 30 different animals
    
  • Cocoa Souls - Produce 50k Chocolate Bar in a turn
    
  • Holiday Loaf - Produce 2k Panettone in a turn
• Type 2 - Survive under certain conditions
  
  • Monoculture - Survive 500 days using only one "plant group"
    
  • Good Planning - Survive 1000 days without losing Water, Energy, or Fuel in any turn
    
  • Save the Animals - Survive 1000 days without animal on the farm

1. Start a run with the Corn build
   
   • Expand to include the Crab build
     
   • Get Monoculture III (Day 500)
2. Continue in the same run afterwards if possible, or restart until you have the Crab build
   
   • Expand to include the "Panettone" build (Holiday Loaf)
     
   • Expand to include the "Easter Bunny" build (Cocoa Souls)
3. Continue in the same run afterwards if possible, or restart until you have the Crab build
   
   • Expand to include the Crow-Gnome build
     
   • Expand to include the "Noah" build (Noah's Ark)
     
   • Keep planting trees (Plant a Tree III)
     
   • Keep placing sheeps (Architect of Utopia III)
     
   • Keep buying islands (Seven Seas Explorer III)
4. Start a new run with the "Grape Tree" build
   
   • Get Good Planning III (Day 1000)
     
   • Get Save the Animals III (Day 1000)

Alright this isn't a very long guide, since most details of each build are already mentioned in a separate Build Guide, so I don't want to repeat myself. But yeah, I believe that covers everything so far!

If you have any other questions or suggestions, let me know in the comments.