This spaceships were made originally for the game-artist.net "Armada" contest were they won the 2nd best lowpoly spaceship award. Now has been updated to fit into Unity5 including pbs materials and textures.
I've also created a special heat FX for the spaceship so the engines look more realistic. It's not usual for a real spaceship to leave traces in outer space but a heat effect will be more accurate.
The pack is composed for 2 different spaceship models. One of them bigger to work as cruiser and the other one is a smaller fighter.
I've set 2 webplayers so you can take a better look to the ships here: [Extended Nautika Info]