Alternative Rules for Friendly games of Space Hulk, By Sean Patten

OVERVIEW
DERELICT is an alternative way to enjoy Games Workshop's famous tabletop game, Space Hulk.  You can play solo, or cooperative.  The board is randomly generated as you explore, and encounter blips keep things fresh with each new room or corridor.

COMPONENTS
To play DERELICT, you will need: A Copy of Space Hulk [] 6-sided Dice [] Troop Stats [] Enemy Stats [] Encounter Blips []Enemy Blips, Hit and Grenade Markers

Set aside one 4-way intersection per player.  Set aside all of the corridors that are only 1 or 2 squares long.  Set aside all the dead end corridors.   REMOVE all the 5-square corridor tiles from the box.  Then put all the rest of the room, corridor, and intersection tiles in the box so you can draw randomly from them.

Choose a Squad, any specialists your squad allows, and a Chapter bonus (see TROOPS for details).

When you're ready to start, have each player roll two dice- whoever has the highest roll goes first, and turns continue around the table in a clockwise order.  If playing teams, stagger the players so teams alternate.  When it's your turn, you may do TWO things with each of your models.  These things are called ACTIONS.  Finish both actions with one model before you start with the next.  Continue until ALL of your models have done two actions (or chosen to do nothing).  Then it's the next player's turn. After the last player's turn is the ENEMY TURN.  Once all the Enemies have gone, it's back to the FIRST player's turn.

EXPLORING THE DERELICT
Whenever you reach the center of an intersection with open connections, or expose a connection by opening or destroying a door, draw a random tile out of the box.  You may place it in any direction.  You may insert a 2 space hallway section "buffer" before the new tile if any are still available.   Use the 1 space hallways ONLY to help make connections between sections.   Alternatively, you may insert your 4-way intersection tile before placing the new tile.  Use your 4-way wisely- you only get one, and they can help you find alternate routes through the hulk, so don't waste them!

If you are 3 squares or less away from making a connection to another section and the new tile doesn't fit, go ahead and just hook the two together using buffer tiles instead.  Otherwise, if the new tile does not fit on the board for any reason, you must place a DEAD END CORRIDOR instead!

• If the new tile is a ROOM, place two encounter BLIPS face down on the two center-most squares.  Place a DOOR on each of the room exits.
• If the new tile is a CORRIDOR, place one blip in the center-most square.   Place a DOOR on any corridor exit that is directly visible at the time of placement.
• If the new tile is a DEAD END, place the blip (or blips) FACE UP in the end square- they are immediately revealed!
  

If the new tile touches an OBJECTIVE, the objective is placed on that tile.  The objective can be completed as described in the scenario (objectives are completed by spending an action on that tile unless otherwise noted).
If the new tile touches an EXIT TILE, attach the exit point on any available connection of that tile. 

DOORS.  To clear a DOOR away, you must destroy it.  Doors roll 2 dice in defense (1 die if already damaged), and have 2 hits.  If you are attacking a door in MELEE, you will do +1 hit per attack.  After destroying a door, you must treat the connection beyond as revealed, and place a new tile there as above.

THREAT POOL.  The ever-increasing threat of enemies is represented by the THREAT POOL.  Add ENEMY BLIPS (face down) to the threat pool as follows:

• Add One if an AMBUSH encounter blip is revealed
  
• Add Three if an INFESTED encounter blip is revealed
  
• Add one PER PLAYER at the start of the enemy turn.
  

ENCOUNTER BLIPS
When a marine moves onto a tile that has any blips on it, pause the movement and FLIP OVER the blips- consult this chart to find out what happens.  You may finish your move after the blips have been flipped and ambushes have ambushed.  Note that Missions and alternate enemy lists can affect how blips are treated.  BURN WEAPONS: If a burn weapon passes through or hits a square with a blip in it, it REVEALS the blip.  If it is an ambush, you may roll to damage the ambush before they can move and attack.  If it has a defense value, it will use that to defend. If the blip has no defense value, it will defend with 1 die and be DESTROYED if it loses. 

• AIRLOCK.  Spend 1 action to open the airlock.  ALL models in the section must roll their defense dice and the airlock rolls two dice.  Any models that lose are sucked out into space!  This kills enemies instantly, and treats any marines lost as having EXITED the board.  Marines may exit the board through an airlock on purpose if they wish.
  
• AMBUSH.   Add one THREAT point, then draw a random blip from the ENEMY BLIPS, and reveal it on the spot. The enemy or enemies may immediately move / attack with 1 action!
• ARTIFACT.   Spend 1 action to collect this ancient relic.  Earn 2 Honor points if any of your squad exits the board.
• BARRICADE.  If found in a room, place in the farthest doorway instead of a door.  Unlike doors, barricades do NOT block line of sight.  Anyone behind a barricade gets +1 defense die if the attacker is not adjacent to the barricade.  No one may move onto or through a barricade.    It may be destroyed, but defends with 3 dice and has 3 hits.
  
• BOGUS.  False alarm- there's nothing there.
• BOOBYTRAP.  Any time a model moves into the section (including the revealing model), roll their defense dice- on any 1s, the BOOBYTRAP goes off.  Any time a weapon is fired into that section, any 1s or 6s will set it off.  If it goes off, roll 3 dice vs. each model in that section!  (Discard after it goes off).
• CHAPEL.  Once per turn, a squad member may spend an action in this section to earn 1 CMD point.
  
• CHIRURGEON.  Spend 1 action adjacent to remove ALL hits from your model.  Then roll a die- remove the Chirurgeon if the roll is an odd number.
  
• COLLAPSE.  Any model that attempts to move through this section must roll their defense dice- if any die rolls a 1, they FALL, taking 3 dice of damage.  They must start back at their original entry point to represent backtracking through the lower levels.  If they don't fall, they do not have to roll again unless they re-enter the section, or take damage or knockback.
• DATA. Spend 1 action adjacent to download valuable data and earn 1 Honor point. 
  
• DECK GUN.  Spend 1 action adjacent to fire the DECK GUN.  Draw line of sight from the gun's position.  It rolls 6 dice, blast!  (Discard after use).
• FUEL DUMP.  Any time a weapon is fired into or out of that section, any 1s or 6s will set it off.  If it goes off, roll 3 dice vs. each model in that section!  Then place a flamer template on the section that lasts 1 turn (PERSISTANT).  Remove the blip.
  
• GENERATOR.  Spend 1 action adjacent to OPEN or CLOSE any 1 DOOR anywhere on the board.  If the door closes on a model, it rolls 4 dice against the model's defense!   If the model survives, it must move to either side of the closed door.
• INFESTED.  Immediately add 3 THREAT points when revealed.  Acts as an ENTRY point for enemies until destroyed.  Defends with 3 dice.
  
• LAB.  Spend 1 action to learn more about the enemies.  Roll two dice and choose the lower roll- earn that many command points.  Techmarines and Medics may reroll.  This can go ABOVE the normal maximum for command points!  Discard after use.
• MACHINERY.  Spend 1 action to turn on.  Adds 1 THREAT point, but replace with any encounter blip on the board or in the discard pile of your choice!
  
• POWER FIELD.  If found in a room, place in the farthest doorway instead of a door.  Spend 1 action adjacent to turn on or off.  Any model attempting to move on or through it will be attacked by 3 dice.  May not shoot through it.   Defends with 3 dice.
  
• SCANNER.  Spend 1 action adjacent to roll 1 die- may reveal that many Enemy or Encounter blips on the board.  Remove the blip if you roll a 6.  Revealing an ambush does not allow it to ambush until the section is entered as normal.
  
• RELAY.  May spend an action adjacent to activate any encounter blip anywhere else on the board.
• SENTRY GUN.   Defense 3 dice, 3 hits (MELEE defense is only 1 DIE).  Earns 1 OVERWATCH token per remaining hit at the start of the ENEMY turn (max 3).  A SENTRY GUN will automatically SHOOT at ANYONE moving INTO the section, rolling 3 dice, and will JAM if it rolls any doubles (it may attempt to unjam by using an OVERWATCH token).  Enemies will attempt to destroy it just like a player model.
  
• SERVO SKULL.  Spend an action to pick up.  At any time during your turn, you may deploy the servo skull from any of your models.  Treat it as a 1 hit model with 1 defense die and no attacks.  May move, activate encounter blips, and draws line of sight as a normal model.  It may move past enemy models and does not block line of sight or movement.  Enemies may attack it though.  Does not count as a casualty if destroyed (you do not earn CMD point).
  
• SUPPLIES.  1 action to pick up.  Anyone in the squad that picked it up may discard it in order to:
  
• Automatically unjam 1 weapon.
• Acquire a grenade.
• Reload an empty weapon (flamer, missile launcher) with 3 shots.
• Heal 1 hit on any injured model.
  

• SURVIVOR.   Whoever reveals may place a wounded tactical marine and take control of them for the rest of the game.  If they survive the mission, earn 1 Honor point!
  
• TRANSMITTER. Spend an action adjacent to try transmitting crucial data and roll 3 dice- on any 6, discard and earn 2 Honor points!
  
• VICTIM.  This tragic scene heightens your danger sense.  Immediately take 1 CMD point.

ENEMY TURN
1.  MOVE REVEALED ENEMIES.  Move any REVEALED  enemies towards the nearest target and attack as appropriate.  Remember that enemies get a free melee attack at the end of each move.
2.  INCREASE THREAT.   Add ONE face down enemy blip PER PLAYER to the THREAT pool.
3.  ROLL FOR ENEMIES.  Roll one die per player and add the rolls together.  If the total is LESS than the number of blips in the threat pool, the threats become active!    Players must place the Enemy Blips from the Threat Pool, face down, at ENTRY POINTS listed below.   Keep going until the threat pool is empty.

A.  Place two blips on each revealed INFESTED encounter blip.
B.  Place one blip outside each OPEN ENDED CORRIDOR.
C.  Place one blip behind each CLOSED DOOR.
D.  Return to step A until all blips have been placed.

IF NONE of the entry points listed above are available, place TWO enemy blips outside of each DEAD END, and return the rest of the blips to the THREAT POOL.

4.  MOVE BLIPS.   Any blips on the board get 2 actions, which they can only use to move (up to 6 squares per move) or try to break through doors (see below).  They must move towards the nearest Marine.   If a blip moves into view of a Marine model, it is immediately flipped over - the indicated enemies must be placed on or adjacent to that square  If there is not enough room for the revealed models, remove the extras.  If the blip had any move left when revealed, the enemies may finish moving after being revealed (including into melee).  If the blip had an action left after being revealed, the enemies may spend one action to move, shoot, etc. as normal.  Shooting enemies that have no actions to shoot may spend any remaining move to get AWAY from the marines once revealed.

• DOORS: If the blip is behind a DOOR or BARRICADE and can't get to the marines any other way, it may attack the door or barricade by spending an action, rolling 3 dice.  If a door is destroyed while in line of sight of a marine, it reveals the blip (as above), and a tile must be placed behind the door (as Exploring the Derelict above).
• DEAD ENDS: If the blip is outside a DEAD END, it may try to break in by spending an action, rolling 3 dice.  The Dead End defends with 3 dice and has 3 hits.  Leave the hit markers on the dead end to indicate any damage it has taken- this means enemy blips may have an easier time getting in later!
  

ENDING THE GAME
Unless specified by the scenario, the game ends when all the Marines are either killed or have exited the board through an exit point.

• Earn 3 Honor points for every objective completed.
• Earn 1 Honor point PER PLAYER  if your squad got the most kills.
• Earn 1 Honor point if you make a connection to an EXIT tile.
• Several Encounter Blips award Honor points on completion!  See encounters for details.
  

• MOVE. Move 6 squares.  Cannot move diagonally.  May not move through doors or enemy models.  May move past friendly models.  May NOT end move in a square occupied by any model or door. 
  Any model may make a free MELEE attack at the end of a move.
• MELEE.  A model can make a melee attack on any enemy model in an adjacent square (diagonal included).
• SHOOT.  A model can perform a shooting attack if armed with a gun(see combat below).  May not shoot through terrain.
• OVERWATCH. Place an overwatch marker next to the model (see shooting for details).   If you do this before moving, it can apply to the next Ambush you reveal.
• GUARD. Place a guard marker next to the model.  Your melee is at +1 die (whether attacking or defending), until the end of the enemy turn.
  
• UNJAM.  A model may attempt to unjam a jammed weapon (their own or an adjacent models) by rolling the weapon dice.  If they don't get doubles, the weapon is unjammed.
• FOCUS.  A model may add +1 to any one of their dice at any time by spending an action.
  

You may grant an additional action to any of your troops at ANY time by spending a command point.   This includes putting them on Overwatch or Guard during the enemy turn!

• Some characters listed on the TROOPS page have a CMD value. 
  
• At the start of a player's turn, roll one die per CMD value.  Any dice that roll a 5 or 6 will earn a COMMAND point.
• A squad earns 1 command point every time one of their members is killed.
• A squad may save up a maximum of 3 command points at any time unless otherwise noted.
  
• If using a Command Point to move, you may only move 3 squares.

COMBAT
A model can usually attack with a SHOOTING attack or in MELEE.  Players may not attack each other.  OVERKILL: For every die the winner rolls that is HIGHER than the loser's HIGHEST die, they do one point of OVERKILL.  You can read more about how contested die rolls work by reading this page.

• SHOOTING: You must have a clean LINE OF SIGHT to the target.  You may never fire through friendly models.  However, grenades may be thrown past friendly or enemy model at targets further away!   Burn weapons may fire through enemy models. There are no range penalties in a space hulk, as corridors are usually not that long.
  • Attacker rolls ranged dice.  Defender rolls defense dice.  If defender ties or wins, nothing happens.  Otherwise, the attacker does one hit per OVERKILL (or one hit if attacker wins with no overkill).
  • RAPID FIRE weapons may shoot twice for one action, if the targets are within 6 squares.  On the second shot, if you roll any DOUBLES, you will JAM (the shot still applies).   If firing more than once in a turn, this also counts as a second shot for jamming purposes!  To unjam, you must spend an action, roll the weapon dice, and not roll doubles.  You may use rerolls to reroll dice when trying to unjam.
    
  • OVERWATCH: On the enemy turn (or during an ambush action), if an enemy model moves into view, you may make an attack on the model (may shoot twice if you have rapid fire and they are within 6 squares).  Remove the overwatch marker after firing (may hold multiple overwatch markers).  At end of enemy turn, remove any unused Overwatch markers.

• MELEE: You must be adjacent to the target (diagonal counts, as long as there aren't enemy models or walls on BOTH pinching squares).
  • Attacker rolls melee dice.  Defender rolls melee dice.  If attacker wins, does one hit per OVERKILL (or one hit if attacker wins with no overkill).  If Defender wins, does one hit per OVERKILL.  If defender ties or wins with no overkill, nothing happens.
  • GUARD:  the next time you melee (whether attacking or defending), you may roll an extra die.  Remove the Guard marker after the attack.  At end of enemy turn, remove any unused Guard markers.

• RESCUE- Objectives are SURVIVORS (as the encounter blip).
• BREAKTHROUGH- Objectives are exit points.  Start all players on one side of the board and place the objectives on the other side of the board, 24 inches away.   Reach them to complete the objective and escape.  Consider using the BREACH rule (see optional rules below).
  
• SELF DESTRUCT- If any objectives have been completed, at the end of each enemy turn, roll  one die and add +1 to the roll per objective completed. On a roll of 5 or more, the countdown starts!  Three turns later,  the entire board blows up, killing anyone that hasn't exited.   Whoever earned the last objective before the countdown gets points for any enemies killed by the explosion!
• GENOCIDE- No objectives.  Whoever kills the most Enemies wins.  Play until all marines are wiped out or you run out of Enemy blips and kill all models on the board.
• TREASURE HUNT-  No objectives.  Treat all DATA blips as ARTIFACTS instead.   Last blip is treated as an artifact too. Game ends when you run out of blips, or marines!
• PATRICIDE- No objectives.  Whoever defeats the enemy leader (Patriarch, Warboss, etc) earns +1 HONOR point.
• SECURE THE PERIMETER- Whenever separate sections meet, the squad who makes the connection earns 1 Objective.  Earn 1 HONOR point for every dead end you find.  If there are no entry points left, the player who closed off the last entry point earns an Objective.
• SURVIVAL-  Objectives are supply rooms- treat the objective as a Supplies encounter blip.  When an objective is found, add 5 enemy blips to the THREAT pool!  Once found, a squad must stay alive for 4 turns in order to earn an objective.
• TOXIN- Each squad gets 1 Toxin canister.  Must be carried- as HEAVY.  Must spend 2 actions with the Toxin on the objective to complete it.  If bearer killed, toxin is dropped.  SUPPLIES blips can be more TOXINs.  Game ends when all objectives are poisoned.
• RECOVERY- Objectives are a rogue C.A.T. droid with crucial data.  Once spotted, C.A.T.s move immediately, and at the start of each enemy turn.  C.A.T.s move 6 squares, as far away from all Marines as possible, and may add a new section if  one reaches a board edge.  C.A.T.s may move right THROUGH a door at the cost of 3 squares of movement.  The C.A.T. cannot be damaged in any way, including moving through fire.  Genestealers ignore the C.A.T.   Spend 1 action adjacent to capture it.  Must exit the board with it to earn the objective.  If bearer is killed, C.A.T. is dropped and immediately moves again.
• UNCONSCIOUS- Your ship has been hit by an enemy mind blast, knocking everyone unconscious!  Treat all entry points as EXIT points instead- do not start there!    Place one objective blip per squad member- these are your unconscious squad members!  Pick 1 model to be the first to wake up, and pick an objective blip location for him to start on.  Place a random tile under that blip location and start exploring as normal.  At the beginning of each turn thereafter, roll 1 die for each objective marker.  On a 6, it wakes up!   Place another model and a tile under them as above.  If you reach an objective marker before it wakes up, you may wake it up by spending an action.  Enemies will ignore and may move past unconscious models.  Earn 1 Honor for every model you get off the board via an exit point.  Game ends when all marines have woken up and escaped or have been killed.
  
• ESCAPE- Objectives are the only POSSIBLE escape routes: draw an encounter blip when objective reached- if it is a BOGUS and the section has any open connectors, you found an EXIT point!  Add it to any available connector.   The last objective is always an escape route.  Earn +1 Honor per model that escapes.  Treat regular BOGUS blips as an ENTRY POINT- place a ladder marker in the square to represent a hole in the floor where enemies can pour in!  VARIANT: try starting in a 4-way room in the board center.
  
• NO ESCAPE- Don't place the objectives yet: Treat Bogus blips as the Objectives until you run out of objectives.  Objectives are ESCAPE PODS- they defend with 3 dice.  If an enemy moves into an escape pod, you lose!  Enemies will aim for the nearest escape pod, and will only fight if you get in their way.  Game ends when all escape pods have been destroyed.

• WALL BREACH- Your squads may attempt to break through walls.  Pick any existing 3-square CORRIDOR tile (straight or corner).  Attack the center square in any way (it has 3 hits and defends with 3 dice). Techmarines do +1 hit.  Melee attacks do +1 hit.  Blast weapons do +2 hits.  Once 3 hits have been done, you may replace that CORRIDOR tile with a 3-way intersection corridor tile!   If the 3-way intersects with another corridor or room, you must be able to replace that corridor or room with an equivalent tile that allows a connection, or the breach will fail.  If there are no more 3-way tiles available to represent the breached corridor, the breach will fail.

• DARKNESS- Nothing is VISIBLE unless it is within 6 squares of a player model OR the center of a Flamer Template.   So you can only shoot at visible targets, blips are only revealed when visible, and new tiles are only placed when the open connection is visible.  Darkness no longer applies after the GENERATOR enounter blip is activated.
  
• SEPARATED- Your squad must be split into two groups, each group starting at their own entry point.
• JAMMING SIGNAL-   Max CMD pts = 1.  SUPPLIES blips are the jammers!   They defend with 1 die.  Max CMD pts is +1 for each jammer you destroy.