Here is the full list of all 42 Survive in Space achievements. It takes around 10-12 hours to unlock all of the achievements on Windows.
Finish all levels on hard difficulty.
Destroy 500 enemy waves.
Unlock bonuses on all ships.
Spend 250 player upgrade points.
Finish all level on medium difficulty.
Destroy 5000 enemy ships.
Finish all levels on easy difficulty.
Kill Emperor.
Kill Eldon.
Use laser 250 times.
Kill Xila.
Spend 100 player upgrade points.
Use homing missiles 100 times.
Kill Narder.
Destroy 100 enemy waves.
Destroy 1000 enemy ships.
Use laser 100 times.
Unlock all bonuses on single ship.
Use homing missiles 50 times.
Play fortress mode.
Spend 50 player upgrade points.
Play enemy mode.
Destroy 50 enemy waves.
Play asteroid mode.
Destroy 500 enemy ships.
Use homing missiles 20 times.
Use laser 50 times.
Finish level 1 on medium difficulty.
Kill Hazzard.
Spend 50 ability upgrade points.
Unlock bonus on single ship.
Finish level 1 on hard difficulty.
Spend 20 ability upgrade points.
Use laser 20 times.
Destroy 10 enemy waves.
Destroy 100 enemy ships.
Destroy 50 enemy ships.
Spend ability upgrade point.
Spend player upgrade point.
Finish level 1 on easy difficulty.
Destroy 10 enemy ships.
Add your own music.