Life Support
You may need it.

Basic
Cost ☐1 ♢1 ⚡1 

 Supports life. Holds emergency reserves that can last up to 3 hours. Is also explosive.

Improved
Cost ☐3 ♢2⚡2 

 Supports life. Can still operate for 2 days in case of emergencies. Still explosive.

Extraordinary
Cost ☐7 ♢3 ⚡2 

 Supports life. Can project a breathable bubble around the ship. All people breathing air produced by this module can move faster, by one tile. Can run for a whole week in emergency conditions. Again, it's explosive, but has more durability so that it hopefully won't do that.