engine: Arkane Studios proprietary

• atmospheric/environmental effects
  • smoke: fire, smouldering wood
  • water: mist, ripples & splash (- walking)
  • weather: fog, wind (cobwebs)
  • other: barrel tap turns, cold air blows near observatory window, earthquakes, expands when baking (bread dough, pies), explosions, fire (campfires, spells, torches, etc), fire shield spell melts ice, flowing lava, picked up objects from water causes ripple and splash, sparks (fist/weapon impact), steam (object-lava contact); see particle effects
• collision detection: break cobwebs, spin hanging body
• lighting: dynamic, colored, vertex; coronas, flickering; crystals, fire, forcefields, lanterns, rock, spells, teleporters, torches
• particle effects: blood spray, fire, lava spurts, liquid spray, poison spray, smoke, sparks
• physics
  • gravity: NPCs
  • friction, inertia, momentum
  • dropped/thrown objects bounce slightly
  • weight (body or stones) pushes ground panel down to open door
• shadows: ovalular masks; NPCs, player character
• skeletal animation: yes
• texture: 16-/32-bit depth
  • filtering: bilinear
  • mapping: mip
  • decals: blood, torch smoke wall marks
  • detail textures
• transparency: cobwebs, cold air, fire, forcefields, magic item glow, smoke, snakewomen "camera" viewer sphere, teleporter portal effects, tracers (arrows, magic, menu mouse cursor), water
• other: camera shaking (earthquakes, paralyze spell), usable objects highlight

player character

• name/description: nameless ("Am Shigar") male prisoner
• body rendered in 1st-person view
• breathing moves camera slightly
• different armor changes look, facial animaion, skill points
• drinking too much wine causes screen to fade maroon in/out for a while
• footsteps: dirt, metal, mud/wet/slosh, stone, water, wood
• moves: drop/pickup/throw object, hit, jump, lean left/right, magic, run, shoot/swing weapon, sneak ("stealth mode"), strafe
• needs to eat or will lose health
• view: 1st-person (character, flying eye, snakewomen "cameras")
  • pan: mouse

level/world design

• # levels: 1 city, 22 levels
• location: Arx (underground city: castle, village); caverns, caves, foundry, mines, outpost, etc
• cutscenes: yes
• level editor: Theo
• environmental interaction
  • break: cobwebs, grate, walls (some)
  • drop/pickup/throw: benches, blacksmith's files & pliers, body limbs, bones (pelvis, skull), chairs, chest (1, small), cushions, forks, goblin game board, hoe, jars, "kitchen utensils" (bowls, containers, holder, pots), mugs, pack of cards, plates (clean, dirty), shields (broken), stone blocks, stools, sword blades, tokens, troll art; see inventory
  • open/close: chests, cupboards?, curtains ("changings"), doors (normal, gear-- - close)
  • push: ?
  • ride: lift
  • search: barrels, bodies, chests (floor, table), corpses, flour sacks
  • other
    • cook food over fire: bread dough, chicken drumsticks, fish, pies, ribs
    • eat: see inventory
    • dig up buried chest
    • drink from, and fill up bottles with water from, wash basins & watering holes
    • fix levers: broken levers + wood pieces
    • make: enchanted ammo/weapons, fishing rod (fishing pole + rope), keyrings (keyring + keys), pies (dough + rolling pin; apple: + apple), potions (powder + empty bottle + still), powder (pestle-and-mortar + bone/plant)
    • mine gems/gemstone/gold (pickaxe + object)
    • light (via spell): fires (campfires, candles, torches, etc)
    • lock/unlock door
    • look through telescope
    • pick: locks (chests, doors), pockets
    • poison ammo/weapons & food/drinks?
    • pull switches
    • pump bellows
    • read books/letters/notes
    • repair: armor/weapons (anvil + armor/weapon), lift gears (rope)
    • shoot stalagtite
    • spin hanging body (+ bump)
    • turn spitroast handle
  • puzzles: deliver messages, find things/people, get signature, save girl from being sacrificed, shoot stalagtite
  • traps/hazards: gravity (falling), fire

weapons: axes (+ pick-), bones, bows (? kinds + cross-?), clubs, daggers, fists, hammers, spells, swords

NPCs: bat(s?), demons?, dwarves?, ghosts?, goblins, golems?, humans, liche?, mummies?, rats (large), ratmen, spider women, spiders (various), trolls, undead/zombies?, worms (large)

• non-threatening: dogs, chickens, frogs, pigs, rats (small)
• AI: dodge; idle chit chat
  • run away and call for backup/help
  • can hear and smell(?) player
  • different races fight each other
  • guards relight torches (some)
  • limited line-of-sight vision
  • look at player while in range (+ turn)
  • react when stepping on fire (goblins only?)
  • react to theft
  • stop following after certain distance and return to origin
  • frogs leap away when approached
  • dog follows player after "petted" or fed

inventory: armor, blades (+ glowing), books, bones (leg), bottles (blood, empty, powder, water, wine), candles, fishing poles/rods, food (apples, bread + dough, carrots, cheese, chicken: drumsticks, roast; fish, flour, garlic, leets, mushrooms, pies--normal, apple; ribs, water, wine), gems (diamonds, emeralds, rubies), gemstone, golem hearts, gold (bars, chunks, coins), golden cup & snake, jewlery (bracelets, necklaces, rings: gold, key, magic, silver), keys, letters, magic items, metal chunks, paper (letters, notes, goblin mine shares), pestle-and-mortar, plants (ferns, flowers: morning glory, snowdrop; healing herbs, water lilies), potions (cure, lili, mana), powder (antidote, boneform, water lily), rolling pin, rocks, rope, runes, pickaxes, sacred dagger pass, sacrificial implements, scrolls, shiny orb, shovels, toolsets (lockpicks), torches, troll idol, wall blocks, weapons/ammo, wood pieces, wooden stakes; more info

• combine objects
• expandable via bag

other

• sound: stereo, EAX