By "Organic Ships", I mean alien-like blocks that look deformed and pulsate every second. An Alien species like Xsotan but more biological.
For example: The Flood from the Halo Franchise. It had biomass on it's ships that it infected.
WHAT IT WOULD DO
Also, with the boarding system coming up, it could really fit in. An alien ship that launches its infected pods at the opposing ship and when taken over, overtime the ship will have visible spores or infection on the outside of the ship (Don't know if that's possible but it sure would be awesome). The weaponry that the ship originally had would shoot different projectiles (Pulse turrets shoot spores, cannon turrets shoot biomass, etc.). It could also have unique turrets like tentacles and such. The hanger bays will look like holes that contain nests. The alien ship made of biomass of course would be weaker to any kind of turrets, but instead of armor it would have rapid regeneration so it wouldn't need mechanics.
GETTING ALIEN CREW/CREW NEEDS
The alien crew won't need payment as they're controlled by a hive mind (The player). The only way to get an alien crew is by either getting the crew from stations before the ship was infected, or invade other ships with the infected boarders to assimilate the enemy crew into your own.
GETTING THE MATERIALS/MAJOR QUEST
To get the alien materials, you would have to find a sector that is guarded by lots of strong NPCS. Once all the NPCS are defeated, the leader of the group shows up and warns you of the danger you're getting in to. When he dies, a portal opens far away in the sector. Once in the portal, Everywhere around you is very foggy and sickly green. It would be highly rich in the alien materials (Zansis would be a preferable name of an alien material in my opinion).
ALIEN SHIP MAKING/SHIP REQUIRMENTS
When making the alien ship with the materials, it will be extremely expensive. It would be expensive because once you invade other ships with the alien ship, it will overtime convert to an alien ship as well. Depending on the block count of a ship will determine the speed of the transformation. To start the infection on your ship, place a single block of the alien material on your ship to start the converting process or simply recycle your ship and make it purely out of the alien material (A ship made out of complete biomass will receive an added bonus of higher regeneration and will add a crew bonus of 100-1000. Bigger the ship, the bigger crew bonus you'll get.).
SHIP INFECTION PREVENTION
The most important feature of the alien ship is it's strong boarding capabilities. It's boarders are stronger due to their large numbers.
Two easy ways to stop the destruction/loss/infection of your ship is:
1. Get loads and loads of security (Downfall is having to pay all the security crew unless you've got a good way of making credits)
2. Just completely annihilate the alien ship (Results in loss of getting the the ship materials and/or profit of selling it)
GETTING MATERIALS FROM ALIEN SHIP/DEFEATING ALIEN SHIP
Defeating the alien ship by destroying it with turrets would make it's non-essential alien parts degrade or rust very quickly due to the fact of losing it's "vital organs" (Vital organs as in when a ship has taken too much damage and becomes lifeless. Like the regular ships that blow up and you start as a drone again). To gain the alien materials from the alien ship is to board it. If you successfully destroyed all the infected crew in the alien ship, you will obtain the alien ship as it would not have the crew to move the sentient ship (Alien ship is controlled by the player but cannot function without the crew). Since the ship is still alive and immovable, you will have time to salvage the ship without it dying or rusting quickly due to not destroying it's vital parts.
Be warned that obtaining the alien ship will be extremely difficult as it will contain most likely 3-4 times more security than you do. You will be stronger but they will have more numbers which will eventually overwhelm your boarders and convert them into their army if the alien ship's army is large enough to do so. Also, remember that getting materials from a completely, untouched asteroid biomass is different from a moving, aggressive, intelligent alien biomass.
(LORE)-Not needed but something I think sounds very interesting and awesome.
A couple centuries after the explosion that created the Xsotan, They began experimenting on their own kind to see any kind of weaknesses they could have. Over the years they've rarely found anything they were weak against. But then, they used some kind of dark energy ray weaponry on their kind and it triggered a very disturbing event. The experiment began to mutate into something horrid. It then killed the scientist it was next to. Guards eventually came in shot the creature down. The creature died but shocked by the horror they've seen, they were not focusing on a more important matter. The spores that emerged from the creature went into the ventilation infecting those not wearing a protection suit. Time later came and turned everything and everyone into the infection. There was only a handful of survivors that in time, escaped.
They told their military leaders of what happened and by the looks of the scientists, they believed them. The scientists traveled by portal to get to the military leaders. And so, the scientists insisted to guard the portal instead of going in to cleanse the sector within. Their reasoning was if the infection spread onto the ships, they would infect the galaxy (Not knowing that they needed a chosen individual to lead them as they're feral without a leader). The Xsotan, trusting their people greatly, followed their advice. They sent the best containment control force to guard the sector and close off all signals, signs of treasure, everything. For if one went into the portal and the infection was founded by despicable individuals, the end of the galaxy could be at hand.
TLDR: Make biological ships.
This may seem like a lot but if created, it would be extremely amazing for biological alien ship creations and role play. Or you could just make ships that look gross and alive that'll be fine to. That's pretty much the main feature i'll and maybe some people would be looking forward to. This as well may seem like a benefit of added diversity to the game. If it doesn't work it's fine, but it is still one heck of a suggestion.