Here is the full list of all 27 Starblast achievements.
Contributed 50000 gems to stations
Make 500 kills in the game
Get one tier 7 in survival mode
Win your first round in deathmatch mode
Make 100 kills in the game
Contributed 5000 gems to station
Make 10 kills without dying
Make 5 kills without dying
First victory in team mode
First victory in survival mode
Make a kill in the game
Get one maxed tier 5 in survival mode
Get one maxed tier 6 in survival mode
100 victories in deathmatch
500 victories in deathmatch
1000 victories in deathmatch
Make 1000 kills in the game
Make 5000 kills in the game
Make 25 kills without dying
Make 50 kills without dying
Make 100 kills without dying
50 victories in survival mode
100 victories in survival mode
500 victories in survival mode
50 victories in team mode
100 victories in team mode
250 victories in team mode