In Infected you need to find a parasite among space animals to test your capabilities as a medic bot. Make too many mistakes then you are deemed useless and another robot takes your place.

Infected animals while visually the same have different sounds, movement and behavior compared to other animals with the differences becoming more apparent as the animals health goes down. After killing it's host parasite quickly finds another animal to latch. 

Controls:

WASD - Move

E - To inject nearby animal

Headphones recommended since the infected animal has sound cues. 

Music by InstruMetal