Combat rules reference

Coriolis RPG rules - GM and PC support page

Checking on the Coriolis Discord, I read that the publishers are OK with players recreating tables, figures and data from the RPG source material where the only purpose is the facilitation of playing their game and I hereby promise this is my only intent with this article. Here I've taken the Year Zero Engine to modify the Coriolis rules for my own games - Doctor Weather

This is a summary of combat rules from the Coriolis core rulebook.

• Initiative
• Sneak attacks
• Actions
• Attacking
• Weapons I often forget
• Modifiers
• Defence
• Damage
• Healing damage
• Grappling

Initiative

Roll 1d6 and act in order highest to lowest

• Combat Veteran talent: take the best of 2d6
• Ties are resolved by a roll off
• Retain initiative between rounds

Modifiers

• Weapons - by weapon stat
• Surprise attack: +2

Increase initiative: success spends give +2 (cost 1, multi-buy possible)
Decrease initiative: permanently descrease your initiative score by holding your action
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Sneak attacks

Pass an infiltration test to get a free normal action

• PC and primary NPC get to oppose with observation
• Modifier by length of the sneak: close +2, short 0, long -2, extreme -4

If lying in ambush then test infiltration +2
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Actions

Take 3AP worth of actions on your initiative

• Remember to leave some AP for reactions if you think you'll want them
• Defending in an opposed roll doesn't cost AP

	ATTACKS	OTHER
SLOW - 3 AP	Ranged: Aimed shot (+2) Auto-fire * - long range max	First aid Mystic power Tinker with gadget
NORMAL - 2 AP	Standard attack	Reload
FAST - 1 AP	Quick attack (-2) - melee: light weapon only - ranged: short range max Prepare attack (ready a standard or quick attack; attack precedes awaited circumstances)	Defend against melee attack Draw weapon Drop prone Move (up to move rating) Pick up item Prepare action (ready a normal or fast action; action precedes awaited circumstances) Stand from prone Take cover

(*) Auto-fire

• -2
• May keep re-rolling 1d6 until roll 1 and stopped by empty clip
• May hit multiple targets within close range of each other, distribute successes with at least one to each target before other effects can be spent
• Successes spent to suppress do 2 stress instead of 1

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Attacking

Weapons I often forget

Club or improvised weapon: Bonus 0, Initiative 0, Damage 2, Critical 3
Unarmed: Bonus 0, Initiative +2, Damage 1, Critical 3
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Modifiers

MELEE AND RANGED	RANGED ONLY
Weapon bonus	Target prone (-1)
Target size Tiny -2 Small -1 Large +1 huge +2	Range Close (2m): -3 (+3 if target unaware) Short (20m): 0 Long (100m): -1 Extreme (1km): -2 Beyond weapon range: -3

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Defence

Defence roll possible in melee only
All successes are spent as extra successes (see right).
Armour
Successes cause -1 weapon damage. If damage is reduced to zero then critical hit fails.
Cover
Cover value sdds to armour: e.g. divan 2, door 4, wall 6.
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Damage

Attack successes are spent
First success inflicts weapon damage, spend extra successes (see right).
Target broken at 0 HP or 0 MP

• Heal by successes on medicurgy (and also command for MP)
• Death only occurs on critical of 65 and 66, not through damage or stress

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Healing damage

Each recovery in the table below must be rolled for separately. 

	Natural healing	Medicurgy *
Critical injury - prevent death	not possible	successful roll
Critical injury - heal all penalties	wait the time for that injury	successful roll halves recovery time
Recover from broken	wait 1d6 hours, return to 1 HP/MP	succesful roll to return to 1 HP/MP
Recover HP / MP	1 per hour	gain HP / MP equal to successes

* Command can be used instead of medicurgy to heal stress (MP).
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Grappling

Damage an opponent in a pin
Normal action: unarmed melee roll +2, no defence possible.
Break out of a pin
Normal action: opposed melee roll.
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Attack success spends

All cost 1 except crit (see weapon stat)
Where logical, multi-buy is possible

• Increase Damage: +1
• Critical Injury: roll on table
• Critical Reroll: roll again on table
• Disarm: weapon or item
• Raise Initiative: +2

Melee only

• Grapple: pin
• Strike Fear: 1 stress damage

Ranged only

• Suppress: 1 stress (2 if auto fire)

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Defence success spends

All cost 1 except crit, (see weapon stat and +1; also, can only bought with counterattack)
Where logical, multi-buy is possible

• Decrease Damage: -1 attacker success
• Counterattack: deal damage
• Critical Injury: roll on table
• Critical Reroll: roll again on table
• Disarm: weapon (after attack)
• Raise Initiative: +2