Worms Ultimate Mayhem

1. 
   Slide into First

   Complete any mission
   34%
2. 
   Teacher's Pet

   Complete the tutorials
   11%
3. 
   Loves Company

   Complete 10 online ranked matches
   9.7%
4. 
   I am The Worminator

   Kill more than 3 worms in one turn (ranked match only)
   1.2%
5. 
   If You Build It They Will Die

   Inflict 2000 damage in total using weapon factory built weapons
   2.8%
6. 
   Boom Shake The Worm

   Win a round using only grenades and bazooka
   4.6%
7. 
   Pimp My Worm

   Creat a team of worms including custom clothes
   32%
8. 
   Mr Popular

   Complete 5 four player games (online or offline)
   3.0%
9. 
   Credit To The Nation

   Enjoy the game's credits from start to end
   2.5%
10. 
    Eggceptional

    Collect all the Easter Eggs hidden throughout the story mode
    2.1%
11. 
    Glide Like A Worm

    Glide using the parachute in one go for more than 25 seconds
    8.6%
12. 
    Cartographer

    Create a random map and have someone save it to their machine
    1.3%
13. 
    Halfway House

    Reach the halfway point of the story mode
    8.0%
14. 
    Grave Digger

    Kill a total of 200 worms (all modes count)
    8.2%
15. 
    Ranked Up

    Win 10 online ranked matches
    1.2%
16. 
    Loves a Challenge

    Complete all the challenges
    1.7%
17. 
    Wormicide

    Kill a total of 400 worms all modes count
    4.1%
18. 
    Davey Jones

    Drown 50 worms all modes count
    18%
19. 
    Finger of Death

    Kill 5 worms using prod in ranked matches
    1.2%
20. 
    Embrace The Darkness

    Win 10 games with the last hit coming from a sentry gun all modes count
    1.3%
21. 
    Billy No Mates

    Complete the single player story mode
    5.2%
22. 
    Shop-a-holicSecret

    Steam withholds the description of a secret achievement.
    1.4%
23. 
    Genghis Worm!

    Kill a total of 600 worms (all modes count)
    2.7%
24. 
    Doing It Solo

    Complete all Single Player content (Story, Challenges & Tutorials)
    1.6%
25. 
    Fan of The Arts

    Collect all gallery images available
    1.6%
26. 
    Total Ranker

    Win 40 online ranked matches across any 3 game styles
    1.2%
27. 
    Challenge Accepted

    Take your first steps on the road to glory by completing the first challenge.
    2.2%
28. 
    Nick of Time

    Complete one challenge under the required time
    2.4%
29. 
    No Challenge At All

    Complete the deathmatch challenge
    1.7%
30. 
    Time For A Challenge

    Complete all the challenges
    1.6%
31. 
    Time Attacked

    Beat all the times on the new challenges
    1.6%
32. 
    Clock Watching

    Try and beat all the set times across all the challenges.
    1.5%
33. 
    Alexander The Worm

    Play an online game on each new map and win, proving you’re the greatest general
    1.3%
34. 
    Join Me Luke

    Win a ranked Deathmatch on a new map with at least one worm ending with more health than they started with
    1.2%
35. 
    I Love New

    Play each new map more than 5 times (all modes count)
    1.2%
36. 
    Dedicated Ranker

    Can you rise to the challenge and win a ranked Deathmatch on every new map?
    1.2%
37. 
    Davey Jones 2

    Drown 20 Worms across any of the new maps 
    2.7%
38. 
    Feel The Power of The Darkside

    Win a ranked match with two or more worms remaining on each new map
    1.2%

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 38 of them.