One of the core mechanics in the game is the mentioned component system, and it need resource management to be in any way exciting. A non-casual game with no resource management is just plain boring. In its simplest form it is about limited ammunition. To make it more exciting another one can be added; in Lost Planet there is the thermal energy(TODO: describe) and <TODO: add more>.
Planned/possible resources include:
The game will also have various secondary lootable items.
One must-be-included way is blowing up asteroids. Another one would more elegeant, carefully ‘tapping’ them for liquids and gasses.
Blown up enemies could also drop resources to be picked up.