Harmonium

1. 
   Helping hand

   Buddy up someone for the first time
   —
2. 
   Harmonics

   Finish the game
   —
3. 
   The odd ones

   Buddy a traveler from far away
   —
4. 
   100% homegrown

   Fully upgrade your house
   —
5. 
   No good deed unpunished

   Complete a rare event
   —
6. 
   27 buds...

   Unlock every buddies except one
   —
7. 
   … 1 free

   Unlock the last buddy
   —
8. 
   Quick tempo

   Finish the game in less than 64 weeks
   —
9. 
   Point d'orgue

   Finish the game on the very last week
   —
10. 
    Busy hive

    Gather more than 5000 resources in a single week
    —
11. 
    Extraordinary gentlemen

    Reach 50 in every stats at the same time
    —
12. 
    That’s not how it works

    Have the max possible power, but none used
    —

Names, descriptions and icons are the game’s own, as Steam publishes them.