circa: 1999
genre: real-time strategy (dungeon building)

engine: Bullfrog proprietary

• atmospheric/environmental effects
  • water: waves
  • other: decaying bodies (rot, flies), doors open/close automatically, dungeon hearts beat (incrementally increase, hiss, and steam with damage), dust (ground/walls during tremor spells), fire, gas (fart, poison), lightning ("thunderbolts"), smoke (fire, lava), training room dummies react to hits, tremor spells weaken barricades, doors, and walls), wooden bridges burn from lava
• lighting: dynamic, colored; fireballs
• particle effects: chicken feathres, explosions, fire, gas, gold shimmer, smoke, spells
• reflection: environmental bumpmapping (lava, water)
• texture: bi-/tri-linear filtering
• other: camera shaking, deformable terrain

player character

• character: dungeon keeper, any unit in possession mode
• moves: attack (possession mode), build, pickup/drop, slap
• view: 1st-(possession, some units have infrared)/3rd-person; rotate/pan/zoom

level/world design

• location: underground
• level editor: yes
• environmental interaction
  • breakable objects: boulders, doors, traps, walls
  • build: barricades, bridges (wooden, stone), doors (braced, magic, secret, steel, wooden), rooms (casino, combat pit, graveyard, guard room, hatchery, lair, library, portal, prison, temple, torture chamber, training room, treasure room, workshop)
  • pickup/drop: gold, units
  • other: lock/unlock doors
• puzzles: collect gold/mana, torture units
• traps/hazards: traps (alarm, boulder, fear, fireburst, freeze, gas, jack-in-the-box, lightning, sentry, spike, trigger)

NPCs: demons, dwarves, elves, fairies, giants, goblins, humans (guards, heroes, knights, "Lords of the Land", maidens, mistresses, monks, rogues, thieves, warlocks, wizards), imps, salamanders, skeletons, trolls, vampires

• non-threatening: chickens, fireflies, rats
• AI: afraid of fear traps, collect gold, eat, moods (if not kept fed and entertained, units will get upset and leave dungeon), party, sleep, train fighting/spells
  • imps: build things, move crates/gold/traps

other

• map: 2D, real-time
• multiplayer: modem, LAN, TCP/IP
• sound: A3D, EAX, stereo