Give the note you take from Amélie's safe to Doyle.

Beat the navigation test in 5 steps. The solution is: < << << << <

Doyle gives you a scanner to scan for error codes.
Sabotage the Energy Output Gauge in the Artifact Room and use the terminal to copy the error code onto the scanner. Give the scanner to Doyle and he'll give you a note and pin this note on the whiteboard. Repeat four more times so there are 5 notes on the whiteboard,.

After getting the screwdriver head to the sickbay and measure your height. Use the screwdriver to remove the Stand and use the machine again.

Fill the glove with helium and use it from your inventory.

After Zoe gives you the blue pill, give it to Doyle.

When answering the questions of the psych evaluation, answer with all the 3-point answers.

After Doyle gives you his recommendation, return the screwdriver in your inventory to him.

After the captain gives you the key to the artifact panel, show him the photo of Zoe and Ivan.

Order the cat food from the terminal and use it with the broken glass.

After getting Jonsey in your inventory, use the cat food on him.

The only unmissable achievement. Simply beat the episode.