Intrusion Gamemode

[Cirrial]

So it turns out I forgot to look through ALL of my notes, to my chagrin, so here's some of that along with some of the points mentioned here:

• Monkeys and possibly even NPC humans (not player controlled humans, even if braindead) should be contenders for control, but as mentioned it will require establishing more Presence first.
  
• I'm especially loathe to allow mindslaving because I can easily see humans running around screaming HEY HEY HEY I'M YOUR WILLING DEVOTED SERVANT PLEASE CONTROL MY BRAINS SO I HAVE A BLANK CHEQUE TO GO ON A MURDER SPREE, although the overmind gets resources from things not being killed and any explosions would potentially damage its minions and structures, so there would be some limit to how much destruction a mindslave could get away with.
  
• I did have the idea for "critter nests" where critters could be told to take food items on the ground and gather them into a tile to be used as nest building materials, and which would passively spawn more critters as you had critters roaming the station in search of food, but I thought the concept might have been adding even more complexity to an already unconventional and game-changing antagonist. Perhaps it'd be best to have some sort of portal structure instead as suggested. I like Mageziya's ideas for specific structures per critter type, too.
  
• as are the ideas for critters representative of other parts of the intruder seeping through, I like that a lot
  
• One potential counter to "oh hey, critters are acting weird, AI look for weird glowy shit" is that the buildings initially start off completely undetectable until the intruder has enough Presence to start defending itself properly. This does however cause a problem of a lazy intruder just sitting pretty and causing mild mischief without revealing itself, but this problem more or less exists for a lot of special antags already (wraith and blob could sit there and do nothing the entire round)
  
• I originally wanted there to be some way to make the intruder's actual mob visible and manifest and damageable but I thought that might be getting into wraith's territory too much. Although, if destroyed, what would happen is the intruder is completely out of play for some amount of time and loses some amount of Presence (potentially all of it) and has to wait to tunnel through back into this dimension with some new part of itself. 
  
• Related to the intruder being vulnerable itself, I was at one point considering that human speech would cause it some sort of stamina harm until it manifested, and then I immediately realised how godawful an idea this was and threw it into the rubbish. Suggestions for weird idiosyncratic weaknesses that force manifestation (that are not related to salt piles) incredibly welcome.