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You've been walking around in the lab, constantly cleaning up corpses. You always have to watch your back, and glare at every corner due to the escaped parasite. - This is outcome 1 if you choose the janitor.
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You've been testing the still contained two parasites, as they screeched, slamming on the glass in a miserable attempt to escape. You fear the escaped creature, as it could be around any wedge or side you look at. - This is outcome 2 if you choose the researcher / scientist.
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One of your crew members was slaughtered, and his corpse was taken ahold by the monster. You're constantly patrolling the lab and the surface, making sure it never escapes, in a hope to neutralise or re - contain it. - This is outcome 3 if you choose the gaurd / task force.
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You recently slaughtered over 12 victims, spreading their organs across the walls, making meals out of them, and manipulating and scaring everybody in the lab. You can't decide whether you want to help release your fellow parasites, or kill everybody and leave them to rot. The best you know, is that you have a bloodlust for chaos and murder. - This is the last outcome, 4, if you decide to be the main parasite.
[ There are four endings to this. ]
1 - Gone and forgotten. The parasite has effectively murdered everyone in the lab, and has left the other creatures to rot.
2 - Rise and revolt. The parasite has managed to release the other two creatures, slaughtering everyone and evoking chaos on the planet.
3 - A huge clot of lead. The gaurds / task force have managed to slaughter / neutralise the main parasite with a shit ton of bullets.
4 - Secure, Contain, Protect. (Yeah, I know. SCP: containment breach reference.) The main parasite has been captured once again, and research shall continue.