Bus Bound

1. 
   Maiden Voyage

   Finish your first drive
   90%
2. 
   Ashtree

   Upgrade Ashtree
   50%
3. 
   Belvedere

   Upgrade Belvedere
   42%
4. 
   The Strings

   Upgrade The Strings
   21%
5. 
   The Tracks

   Upgrade The Tracks
   56%
6. 
   Off to New Heights

   Unlock New Heights
   14%
7. 
   New Heights

   Upgrade New Heights
   11%
8. 
   Bus Stop Empire

   Unlock 30 bus stops
   14%
9. 
   I Would Drive 500 Miles ...

   Travel 500 miles
   0.7%
10. 
    Hail to the Bus Driver …

    Transport 10000 passengers
    0.8%
11. 
    Growing Fleet

    Unlock 10 additional buses
    15%
12. 
    Windfall Oaks

    Upgrade Windfall Oaks
    14%
13. 
    That's Better

    Drive a custom line
    68%
14. 
    Marketeer

    Unlock 10 perks
    19%
15. 
    Back to the Start

    Drive a custom line where the first bus stop is also the last bus stop
    55%
16. 
    Ping Pong

    Drive a mirrored line where all bus stops are served twice, except the turnaround stop
    9.8%
17. 
    Wright's Crossing

    Upgrade Wright's Crossing
    22%
18. 
    Transit Crossing

    Unlock 7 bridges
    13%
19. 
    Five Thumbs Up

    Serve a bus stop with a multiplier of x5
    78%
20. 
    Perfect

    Achieve a perfect positioning at a bus stop
    83%
21. 
    Smooth Operator

    Drive a line without receiving any negative reaction
    66%
22. 
    Picasso

    Showcase your artistry by customizing a bus
    63%
23. 
    Big Drop

    Collect 300 likes or more when serving a bus stop
    10%
24. 
    Such a Perfect Day ...

    Complete 3 shifts on a single day without receiving any negative reaction
    18%
25. 
    Perfect Service

    Get the additional rewards of 7 upgraded districts
    7.7%
26. 
    Scenic Route

    Drive a line containing bus stops in 7 districts
    5.4%

Names, descriptions and icons are the game’s own, as Steam publishes them; the share is how many owners have unlocked each, from Steam's global figures for 26 of them.