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