Here is the full list of all 23 Space Fighters achievements.
Win 3 Games In a Row
Fire 600 lasers into outer space
Join the developer for a game
Win 100 games
Get killed by an asteroid
Hit the enemy with 400 shots
Win an entire game without dying
Speak the secret code word
Play a game were your entire team is from the same country
Be the only person to deal 110 damage to an enemy player
Win a game within 1 minute of joining in
Win a game of King of The Hill
Win a game of Team Deathmatch
Win a game of Free For All
Play the game after not touching it for over a month
Make it to the top 1% of players globally
Kill an enemy in under 10 seconds
Get more than 50% of the kills in a single game
Win three games in a row without being killed
Kill an enemy 80 meters away from you in under 10 seconds
Win a game without missing a single shot
Kill more than 5 enemies without dying
Get 100% of the kills in a single game