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--- projects:odds_rpg:core [2026/02/17 20:22] – created freedomotter
+++ projects:odds_rpg:core [2026/02/17 21:39] (current) – freedomotter
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 ====== Core System ======
-===== Dice =====
+ODDS RPG uses:
-Action Roll: 1d20 + Attribute + Skill
+  * 1d20 for resolution
-Impact Roll: 2d10 + relevant modifier
+  * 2d10 for impact
+The system is genre-neutral and supports cinematic but tactical play.
+Only roll when:
+  * The outcome is uncertain
+  * Failure has consequences
+  * The situation will meaningfully change
+If nothing changes, do not roll.
+----
+===== The Core Roll =====
+When attempting something risky:
+  Roll 1d20 + Attribute + Skill
+Compare the result to a Target Number (TN).
-===== Target Numbers =====
 ^ Difficulty ^ TN ^
 | Easy | 8 |
@@ Line 13: / Line 31: @@
 | Extreme | 22 |
-Beat TN by 5 = Strong Success
+If the result meets or exceeds the TN, the action succeeds.
-Beat TN by 10 = Critical Success
-Nat 20 = Strong Success
+If the result is lower, the action fails and the GM introduces a consequence.
-Nat 1 = Complication
+----
+===== Degrees of Success =====
+If you exceed the TN by:
+ or more → Strong Success
+ or more → Critical Success
+Natural 20:
+  Automatic Strong Success.
+Natural 1:
+  Failure plus Complication.
+Strong Success may grant:
+  * Increased effect
+  * Faster completion
+  * Tactical advantage
+  * +5 to Impact (if applicable)
+Critical Success may grant:
+  * Major narrative advantage
+  * +10 total Impact (if applicable)
+  * Significant positional advantage
+The GM determines the exact benefit based on the situation.
+----
 ===== Attributes =====
-Might – physical power
-Agility – speed & reflex
-Mind – intelligence & awareness
-Presence – will & charisma
-Start with: +2, +2, +1, +0
+^ Attribute ^ Represents ^
+| Might | Strength, endurance, durability |
+| Agility | Speed, reflexes, coordination |
+| Mind | Logic, perception, technical ability |
+| Presence | Willpower, charisma, leadership |
+Starting array:
+  +2, +2, +1, +0
+Attribute maximum depends on campaign Tier.
+----
+===== Skills =====
+Skills represent training or specialization.
+Untrained skills default to +0.
+Roll:
+d20 + Attribute + Skill
+The GM may approve new skills appropriate to the setting.
+----
+===== Impact Rolls =====
+When a successful action causes measurable effect:
+  Roll 2d10 + relevant modifier
+Impact is used for:
+  * Damage
+  * Healing
+  * Structural harm
+  * Mental strain
+  * Influence shifts
+Armor reduces incoming damage.
+Impact cannot be reduced below 0.
+----
+===== Combat Structure =====
+Combat occurs in Rounds.
+At the start of combat:
+  Each participant rolls 1d20 + Agility for Initiative.
+Highest result acts first.
+On your turn, you may take:
+Move
+Action
+Minor Action (optional)
+You may trade:
+  Move → Minor
+  Action → Move
+You may not trade a Minor into a full Action.
+Keep turns concise and decisive.
+----
+===== Actions =====
+Common Actions include:
+  * Attack
+  * Cast an ability
+  * Use complex equipment
+  * Full Sprint (double move)
+  * Assist an ally
+Common Minor Actions include:
+  * Draw or stow a weapon
+  * Open or close a door
+  * Stand from prone
+  * Quick interaction
+The GM has final say on action categories.
+----
+===== Attacking =====
+To attack:
+  Roll 1d20 + Attribute + Combat Skill
+Compare against the target’s Defense TN.
+On a hit:
+  Roll 2d10 + relevant Attribute for damage.
+Armor reduces the damage taken.
+----
+===== Defense & Positioning =====
+Base Defense TN: 12
+Modifiers:
+Partial Cover:
+  +2 Defense
+Heavy Cover:
+  +4 Defense
+Prone:
+  +2 vs ranged attacks
+  -2 vs melee attacks
+High Ground:
+  +1 to attack rolls
+Flanking:
+  +2 to attack rolls when an ally threatens the target from the opposite side
+Modifiers should not stack beyond what is reasonable.
+----
+===== Range Bands =====
+ODDS uses abstract distance:
+Engaged – melee distance
+Close – same room
+Near – across open area
+Far – long range
+Extreme – sniper range
+Attacks beyond optimal range:
+  -2 per range band beyond intended use.
+----
 ===== Health & Resolve =====
 Health = 10 + Might
 Resolve = 10 + Presence
- Health = Incapacitated
+Health measures physical durability.
-Resolve = Broken
+Resolve measures morale and mental stability.
+When Health reaches 0:
+  The character is Downed.
+While Downed:
+  You may take 1 Action per round.
+If you take additional damage while Downed, roll 1d20:
+–10: Unconscious
+–19: Stable but still Downed
+: Regain 1 Health
+If you take damage equal to your full Health again while Downed:
+  You are dying (GM discretion).
+----
+===== Resolve Damage =====
+Some effects reduce Resolve instead of Health.
+When Resolve reaches 0:
+  The character is Broken.
+A Broken character:
+  * Cannot initiate aggression
+  * Must retreat, surrender, or freeze
+  * Recovers after the scene or meaningful support
+----
+===== Conditions =====
+Conditions do not stack with themselves.
+Shaken:
+  -2 to next roll
+Wounded:
+  -2 to physical rolls
+Frightened:
+  -2 to mental rolls
+Restrained:
+  Movement prevented
+Stunned:
+  Lose next Action
+Conditions last until resolved by time, action, or GM ruling.
+----
+===== Advantage & Disadvantage =====
+Advantage:
+  Roll 2d20, take the higher result.
+Disadvantage:
+  Roll 2d20, take the lower result.
+Multiple sources do not stack beyond one level.
+----
+===== Assisting =====
+To assist an ally:
+  Roll TN 12 using a relevant skill.
+On success:
+  Ally gains +2 to their next roll.
+On Strong Success:
+  Ally gains Advantage instead.
+----
+===== Extended Tasks =====
+Used for hacking, rituals, repairs, negotiations, or other multi-step goals.
+Set a Progress Goal (3–10).
+Each success:
+  +1 Progress
+Strong Success:
+  +2 Progress
+Failure may:
+  * Increase danger
+  * Add time cost
+  * Trigger a complication
+Extended Tasks should remain dynamic.
+----
+===== Environmental Hazards =====
+Fire:
+  TN 12 Agility or take 2d10 damage
+Falling:
+d10 damage per range band fallen
+Poison:
+  TN 12 Might or lose 2d10 Health over time
+Radiation / Corruption:
+  TN 15 Might or lose 2d10 Resolve
+Adjust TN based on severity.
+----
+ODDS RPG Core v1.0 Playtest