Here is the full list of all 49 Around Us : Zombie Shooter achievements.
Kill first zombie
First roulette upgrade
Full speed upgrade
Full health upgrade
First gun upgrade with 4 or more level
First rune unlock
Equip first super card
End first match
First gun unlock
Die for the first time
Got hit by explosion first time.
Got killed by explosion twice
End first wave for the first time
End wave 5 for the first time.
End wave 10 for the first time.
End wave 15 for the first time.
End wave 20 for the first time.
End wave 30 for the first time.
End wave 40 for the first time.
End wave 50 for the first time.
End wave 60 for the first time.
End wave 70 for the first time.
End wave 80 for the first time.
End wave 90 for the first time.
Reach wave 100.
End wave 25+ with more than 1 players.
You are on wave 25+ and you're only 1 left with dead teammates.
100 zombies killed.
1,000 zombies killed.
10,000 zombies killed.
99,999 zombies killed.
60 minutes played in 1 match.
120 minutes played in 1 match.
Kill 1 player
Kill 10 player
Kill huge zombie for the first time
Kill thrower zombie for the first time
Kill hybrid zombie for the first time
Kill rhino zombie for the first time
Kill bigarm zombie for the first time
Got 25,000 score for the first time.
Got 100,000 score for the first time.
Got 250,000 score for the first time.
Got 500,000 score for the first time.
Got 1,000,000 score for the first time.
Got 2,000,000 score for the first time.
Got 5,000,000 score for the first time.
Got 10,000,000 score for the first time.
Kill centipede zombie for the first time