Here is the full list of all 13 Factotum 90 achievements.
Study 30 organic samples.
Send the Space Squid back home unharmed.
Activate magical light bridges 60 times.
Blow up a bomb 100 times.
Embrace the vortex 50 times.
Use crystals to split an energy beam 60 times.
Scan 50 terminals.
Blow up 60 red barrels.
Talk about the weather 100 times.
Drop a ballast container 100 times.
Depress a red pressure plate 100 times.
Change walker 1000 times.
Reset your walker 100 times.