TEXT: Tucker's Kobolds
  A
  dventurers can find immense trouble inside
  kobold lairs, for their warrens are littered with
  traps and murder-holes large enough for the
  nimble kobolds to strike and maneuver, but too
  small for most adventurers to pursue. In turn,
  kobolds are famous for their ruthless guerrilla
  tactics, which are named for the great historian
  Tucker, who first detailed them.
  Each round the party is within the tunnels of a kobold lair,
  roll a d100 for the hazard they encounter. For many of these
  obstacles, the kobolds presented can't be easily slain, and the
  hazard can merely be avoided. If the adventures try to hack
  and slash through their kobold foes, as few as 3 kobolds can
  present a particular hazard, and the kobold lair may be
  manned by between 24 and 48 kobold fighters at a time.
  Otherwise, the adventures can simply run though the tunnels,
  and will escape after encountering 3d6 hazards. In all cases,
  the kobolds lock the door leading into their warrens, and bar
  the exit, trapping would-be adventurers inside.
  Hazards
  d100 Hazard
  1-2
  Kobolds throw firebombs and oil from tunnels
  above.
  3-4
  Kobolds in low tunnels, with small openings near
  your feet, attack your legs with daggers.
  5-6
  Kobolds push an avalanche of boulders downhill in
  your direction.
  7-8
  Kobolds in parallel tunnels attack with spears
  through narrow murder-holes alongside you.
  9-10 Kobolds above drop barbed nets to ensnare and
  lacerate you.
  11-
  12
  Kobolds have littered the path in front of you with
  dozens of caltrops.
  13-
  14
  You are harried from behind by kobolds firing
  poison darts, who retreat upon your approach.
  15-
  16
  Kobolds drop basketfuls of poisonous insects and
  spiders on to you from above.
  17-
  18
  Kobolds light a fire to discharge smoke into your
  tunnel, choking and blinding you.
  19-
  20
  Kobolds ahead release pet giant rats to attack you.
  21-
  22
  Kobolds ahead release a pet giant boar to stampede
  down the hallway toward you.
  23-
  24
  Kobolds pour boiling pitch down a sloped tunnel
  atop you.
  25-
  26
  Kobolds near your feet attempt to entangle your feet
  with ropes and chains, knocking you prone.
  27-
  28
  Kobolds throw gas bombs from above, choking you
  with noxious fumes.
  29-
  30
  Kobolds with hooked poles trip and ensnare the
  rearmost party member.
  31-
  32
  Kobolds hurl javelins at head-height from the end of
  this tunnel.
  33-
  34
  Kobolds hurl a beehive onto your party, releasing an
  angry swarm.
  d100 Hazard
  35-
  36
  Kobolds toss boiling water to extinguish your
  torches and scorch your skin.
  37-
  38
  Kobolds ahead and behind toss bags of flour, which
  causes an explosion with your torches.
  39-
  40
  Kobolds ahead retreat with ropes tied to support
  columns, intending to fell the columns and cause a
  cave-in.
  41-
  42
  Kobolds roll a makeshift bomb down the tunnel with
  a lit fuse.
  43-
  44
  Kobolds with longbows fire from behind a line of
  shielded allies.
  45-
  46
  Kobolds behind and in front attack with spears,
  retreating and advancing as you move.
  47-
  48
  A monstrous kobold champion, a fully-armored half-
  dragon, blocks the tunnel ahead alone.
  49-
  50
  Nimble kobold rogues drop from the ceiling and
  attack with poison daggers.
  51-
  52
  A tripwire up ahead triggers a hail of dart traps.
  53-
  54
  A pit trap up ahead drops only waist-deep, and
  kobolds with daggers below wait to carve up your
  lower half.
  55-
  56
  The floor of the hallway ahead is covered with spikes
  and broken glass.
  57-
  58
  The hallway is muddy and contains hidden bear-
  traps.
  59-
  60
  The hallway up ahead is riddled with lines of razor
  wire to shred your skin as you run past.
  61-
  62
  The hallway ahead tightens, slowing your movement,
  while kobolds archers pepper you with arrows.
  63-
  64
  A trip wire ahead triggers a massive swinging log
  trap.
  Kobold Wizard by Bryan Syme
  
  d100 Hazard
  65-
  66
  A pit trap up ahead is filled with dozens of
  poisonous snakes.
  67-
  68
  The hallway ahead is littered with crude landmines,
  buried under gravel and poised to explode.
  69-
  70
  A pit trap up ahead is filled with poisonous spikes.
  71-
  72
  Half of the hallway ahead is blocked by an imposing
  metal wall, which you must squeeze past. A fire has
  been built and the wall is scalding hot.
  73-
  74
  The hallway up ahead opens to a tavern with a
  rickety bridge crossing it. The bridge has been built
  to flip upside-down on any Medium creature
  crossing it.
  75-
  76
  The floor and walls ahead is coated with sticky,
  flammable tar, and a kobold waits to light it aflame.
  77-
  78
  A pit trap up ahead is filled with water and kobolds
  ready to throw weighted nets over their victim.
  79-
  80
  A heavy ballista fires an armor-penetrating bolt
  down this hallway at regular intervals.
  81-
  82
  The only way ahead is up a steep gravel slope. A
  rope is tied to allow easy climbing, but kobolds wait
  in hiding above to cut it.
  83-
  84
  Sections of the floor ahead are built with wood of
  varying thicknesses, allowing you to step directly
  through, catching your leg.
  85-
  86
  The hallway ahead is full of sturdy, horizontal metal
  poles, which slows your movement, while kobolds
  with crossbows make targets of you.
  87-
  88
  There are several pit traps up ahead that you need to
  jump over. The ground between them is smooth,
  sloped stone.
  89-
  90
  The only way forward is down a dangerously steep
  slope, which has been covered in grease.
  91-
  92
  A pressure plate in the tunnel triggers a cloud of
  poison gas.
  93-
  94
  The hallway up ahead is half as high as the rest of
  the tunnel, forcing you to crawl as kobolds throw
  darts at you.
  95-
  96
  The hallway is flooded to your knees, and snakes
  swim in the water.
  97-
  98
  Pressure plates ahead trigger spear traps hidden in
  the walls.
  99-
  00
  Several crude explosives are rigged to the walls. The
  entire tunnel is rigged to explode.
  Scrapyard Kobold by Bryan Syme
  
SOURCE: textdata/thevault/Dungeons & Dragons [multi]/5th Edition (5e)/3rd Party/Mage Hand Press/Non-Published/Tuckers Kobolds.pdf