Story about person fighting aliens in exoskeleton before joining them
72061
Looking for a book about a crystal like prison planet
92145
Funny short story on man and insect that land on new planet and irritate war-loving inhabitants
75740
90s/2000s book with space soldier is fighting rebels. Then joins rebels who have alien tech
42867
Short story about an astronaut that has to harvest/collect the body fluids of an alien for a panacea
6002
Story (series) identification: Mind controlling satellite, a return to Earth, and two warring alien species
131908
short story about astronauts/colonists in a hostile planet
100531
Novel about a teleportation device and a con artist alien
142581
Short story describing an alien invasion where humans are the invaders
143476
70's/80's sci-fi book about conscript trained to be a powerful warrior
87201
Short story or novel from the 1970s or before about two warring alien tribes
98562
Story about spaceship and a tool
105978
Short story about the drawbacks of human telepathy on an alien planet
118194
Looking for the title of a book about alien invasion, mining asteroids and using lasers to defend earth
87947
Employment office encounters an alien masquerading as a human
153150
Story about mankind being alone in the Milky Way galaxy
131436
Story about tricking the earth empire into saving hopeless aliens
38857
Story Identification: Human Resistance to Conquering Aliens