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.
Spend 250 player upgrade points.
Finish all levels on hard difficulty.
Destroy 500 enemy waves.
Unlock bonuses on all ships.
Destroy 5000 enemy ships.
Finish all level on medium difficulty.
Kill Emperor.
Finish all levels on easy difficulty.
Spend 50 ability upgrade points.
Kill Eldon.
Spend 100 player upgrade points.
Use laser 250 times.
Kill Xila.
Destroy 100 enemy waves.
Unlock all bonuses on single ship.
Destroy 1000 enemy ships.
Spend 50 player upgrade points.
Kill Narder.
Use homing missiles 100 times.
Use laser 100 times.
Destroy 50 enemy waves.
Destroy 500 enemy ships.
Finish level 1 on hard difficulty.
Spend 20 ability upgrade points.
Kill Hazzard.
Play enemy mode.
Play fortress mode.
Play asteroid mode.
Use homing missiles 50 times.
Unlock bonus on single ship.
Use laser 50 times.
Use laser 20 times.
Use homing missiles 20 times.
Destroy 10 enemy waves.
Destroy 100 enemy ships.
Spend player upgrade point.
Spend ability upgrade point.
Finish level 1 on easy difficulty.
Destroy 50 enemy ships.
Finish level 1 on medium difficulty.
Destroy 10 enemy ships.
Add your own music.