X-Sector: Named after the section of Alton Towers that The Smiler coaster is actually in, this is the domain dedicated to Smiler’s interest in technology and chemistry (with the actual look of the tech ranging from more steampunky to more cyberpunky depending on the time period of the AU it features in).

-->The domain consists mostly of a big old lab, surrounded by a yard featuring grass made out of green wire, flowers made out of twisty bits of metal with stained glass leaves and petals, and simple conical trees (like the kind you might see in an old Playstation or XBox game before graphics really started taking off -- that Smiler Game screenshot above is roughly the right aesthetic). The sky here would be filled with swirling, spiraling yellow and black clouds, lit with the occasional flash of lightning. It's all very dramatic.

-->The lab itself is divided into two wings, separated by a main hall with lots of optical illusions a la the actual The Smiler station (with various changing patterns on the walls -- be warned, that linked video has a fair amount of flashing lights in it!). The left wing would be devoted to engineering and be filled with things like whirring little hypno-wheel gadgets, boxes with flashing lights, various skittering tiny robots, and other things of that nature. The right wing would be devoted to chemistry and have various workstations covered with bubbling flasks of liquid and hissing tanks filled with volatile gases -- though I'm really tempted to throw in a little bit of Willy Wonka flavor and have a big old waterfall of Joy Serum somewhere in here too. XD I mean, it feels like something Smiler would have -- maybe it flows into a giant pipe to provide the liquid for the fountain in Smile Street? Or perhaps it just serves as the "drinking water" for everyone there...

-->As for residents -- well, I suppose in addition to Advocates in lab coats tending all the various experiments, it would make sense to have Dr. Gladwell from the Smiler Takeover "Fear Test" show at the very least. After all, he is the Ministry's Chief Neurological Cortex Reprogrammer! :p The only thing complicating that is that I wanted to name Smiler's outfit for this area after him...but I suppose I could name it after his role in the Ministry instead... Anyway, the most notable resident here would naturally be the Marmaliser itself -- a big robot wandering around on its five limbs, looking for unhappy people to make happy and coming by the lab to have its Inoculator syringes and Giggler gas tanks refilled and its Tickler brushes, Flasher bulbs, and Hypnotiser wheels looked at and realigned as necessary.

Musical Mayhem: Hey, Victor wasn’t using the name :p This domain is all about Smiler's love of music and festivals and things of that nature, and -- as you might expect -- is strongly based around that whole The Smiler Takeover that Alton Towers did for the ride's 10th anniversary.

-->The domain itself is a giant fairground set in a field of glittery green grass under more of those yellow spiraling clouds, with a couple of black-and-white-cobbled looping paths winding through it. There are various carnival games scattered about (like the "Beat the Buzzer" game where you have to get a wire loop around a metal simplified Smiler logo without touching it, otherwise it'll buzz and you'll have to start again; hook-a-smiling-duck; bag tosses with grinning Smiler-logoed bags; one of those water gun games where you shoot Joy Serum at a target to make something rise up; etc), along with food stalls, comfy sitting areas, and carts where people can get balloons and little sparklers and trumpets to blow. As you might imagine, it's chaotic, but in a good way!

-->The dominant feature of the fairground, though, is a huge stage at the far end -- a bigger version of the Takeover's Celebration Stage, with all the smiley-face decorations but yellow curtains instead of red. There's a few rows of seats in front of the stage for people who want to sit down and watch, and designated "dancing spots" for those who want to dance and sing along. The dancing spots are generally more populated than the seats, as you might expect. XD

-->Again, the domain is mostly populated by Advocates from Smile Street, just enjoying the carnival -- but you can't have a Celebration Stage without Felix E. Lated as the star performer! :D (Again, Smiler can have their uncle in their Otherland, as a treat.) When he's not up on stage singing, he's wandering the fairground, encouraging everyone to let loose and have fun. Possibly Grin-Grin the clown (from the above-linked "Fear Test") also makes an appearance from time to time, creating balloon animals and telling ridiculous stories -- oh, and we probably should also have the contortionist and the magician from the "Meet The Ministry" stage show up too! All the performers for the Advocates to enjoy!

Sanctuary: Unfortunately for Smiler, as stated in the original post, we can’t neglect the spookier, scarier parts of the coaster’s theming -- and that means having a domain where everything is creepy and horrible, to represent their fears about going too far and actually harming people. And thus we have Sanctuary, inspired by all the Kelman-related materials, such as the Smile Always series and the Sanctuary scare mazes (a few clips of which can be seen in this informative video -- again, watch out for some flashing lights)! Hooray! :D

-->The area is a large, underground asylum, accessed by a pair of rusty metal swinging doors spray-painted with "THE TRUTH" in bright yellow (taken from one of the AR spots you could access with The Smiler Mobile Game back in the day -- there's a set hidden away in each of the other three domains) -- once inside, you're confronted with an absolute maze of concrete corridors, all painted a faded white. The place is not in good repair, with plenty of patches of exposed rebar and wiring on the walls and cracks in both the ceiling and the floor. The whole place is poorly lit, with buzzing yellow lights dangling from the ceiling and occasionally sparking or going out entirely. The only concession to color is in the various posters that have been hung up -- images of spirals with DO NOT RESIST written under them, photos of decaying animal corpses captioned with LIFE IS BAD, and various images of people with their mouths distorted into extremely creepy smiles. It's just a very unpleasant place to be!

-->There are two groups of people that live in this horrible location -- the first being the Corrected. These are the asylum's patients, dressed in tattered and dirty white t-shirts, pants, and dresses, who roam the halls and live in the various cells dotting the hallways. Most of them either have Glasgow smiles or various bits of machinery forcing their mouths into grins, and many also have at least a partially-shaved head and nasty scars on their scalps indicating brain surgery. However, the Corrected are all completely non-violent, either just wandering around doing their thing (vaguely giggling to themselves, drawing on the walls with whatever they can find, standing in small groups and laughing together) or hiding away from anyone they think is a threat.

-->No, the actual enemies of this area are the Staff -- the nurses and orderlies who run the place. The nurses are dressed in stained white uniform dresses, sporting dark circles around their eyes, vicious grins accented by dark lipstick, and long claw-like nails ready to take a swipe out of misbehaving patients; and the orderlies are dressed in similarly-stained yellowed scrubs, with the same dark circles around their eyes and vicious grins. The nurses carry syringes to stab unsuspecting victims, subjecting them to a variety of bizarre hallucinations; the orderlies carry shock batons guaranteed to bring patients to their knees. Their favorite activities are to stalk unwitting Corrected, then take them down while laughing hysterically. Not nice people at all!

-->And the person in charge of the whole shebang? Why, that would be Dr. Minister, a Kelman-like old man with a neat white suit sporting the Sanctuary logo, glinting glasses, and a smile that -- well, it's obvious the man's HEARD of smiling, but you're not sure he's ever seen it in action. He's insistent that everything he does for the Corrected is for their own good, and his ultimate goal is to turn Smiler into his apprentice/successor -- and Victor and Alice into Corrected. Smiler, as you might imagine, loathes this guy, and is absolutely terrified of ending up like him. :(