Complete the indicated pre-requisite missions to unlock the corresponding side mission.

Side mission	Pre-requisite	Level
All the Little Creatures	Systems Jammed	9
An Urgent Message	Home Sweet Home	18
Another Pickle	Treasures of ECHO Madre	15
Boarding Party	Home Sweet Home	18
Boomshakalaka	A New Direction	12
Bunch of Ice Holes	A New Direction	11
Cleanliness Uprising	Science and Violence	18
Don't Get Cocky	Trouble with Space Hurps	23
Don't Shoot the Messenger	Eye to Eye and start The Beginning of the End	26
Eradicate!	Trouble with Space Hurps	23
Follow Your Heart	Land among the Stars	3
Fresh Air	Science and Violence	20
Grinders	A New Direction	11
Guardian Hunter	The Beginning of the End	29
Home Delivery	Treasures of ECHO Madre	11
Hot Head	Home Sweet Home	18
In Perfect Hibernation	Quarantine: Back on Schedule	29
Infinite Loop	Science and Violence	20
It Ain't Rocket Surgery	Science and Violence	20
Kill Meg	Paint Job	18
Lab 19	Science and Violence	20
Land Among the Stars	Lost Legion Invasion	3
Last Requests	Lost Legion Invasion	4
Lock and Load	To the Moon	23
No Such Thing as a Free Launch	Intelligences of the Artificial Persuasion	12
Nothing is Never an Option	Intelligences of the Artificial Persuasion	15
Nova? No Problem!	Marooned	4
Paint Job	An Urgent Message	18
Picking Up the Pieces	Eye to Eye	20
Pop Racing	A New Direction	11
Quarantine: Back On Schedule	Watch Your Step	23
Quarantine: Infestation	Quarantine: Back on Schedule	23
Recruitment Drive	All the Little Creatures	11
Red, Then Dead	Watch Your Step	23
Rough Love	Treasures of ECHO Madre	11
Space Slam	Boomshakalaka	9
Sterwin Forever	Guardian Hunter	29
Sub–Level 13 Part 1	Let's Build a Robot Army	18
Sub–Level 13 Part 2	Sub–Level 13 Part 1	18
Tales from Elpis	Lost Legion Invasion	3
The Bestest Story Ever Told	The Beginning of the End	28
The Don	Eye to Eye	24
The Empty Billabong	Systems Jammed	7
The Return of Captain Chef	The Voyage of Captain Chef and start The Beginning of the End	27
The Secret Chamber	Intelligences of the Artificial Persuasion	12
The Voyage of Captain Chef	Let's Build a Robot Army	19
These are the Bots	Eye to Eye	24
Things That Go Boom	Watch Your Step	23
To Arms!	A New Direction	11
To the Moon	Science and Violence	23
Torgue-o! Torgue-o!	Marooned	4
Treasures of ECHO Madre	Intelligences of the Artificial Persuasion	15
Trouble with Space Hurps	In Perfect Hibernation	23
Voice Over	Home Sweet Home	18
Wherefore Art Thou?	Systems Jammed	7
Wiping the Slate	Intelligences of the Artificial Persuasion	13
Z8N-TP	Eye to Eye and start The Beginning of the End	26
Zapped 1.0	A New Direction	11
Zapped 2.0	Zapped 1.0	11
Zapped 3.0	Zapped 2.0	11