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odds_rpg:start [2026/02/17 21:31] – freedomotterodds_rpg:start [2026/02/17 21:34] (current) – freedomotter
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-====== Core System ======+====== Open20 Dual Dice System (ODDS RPG) ======
  
-ODDS RPG uses: +A universal tabletop RPG system using: 
-  * 1d20 for resolution +  * 1d20 for Resolution 
-  * 2d10 for impact+  * 2d10 for Impact
  
-The system is genre-neutral and supports cinematic but tactical play. +Genre-neutral. Modular. Expandable.
- +
-Only roll when: +
-  * The outcome is uncertain +
-  * Failure has consequences +
-  * The situation meaningfully changes+
  
 ---- ----
  
-===== The Core Roll ===== +===== Core Rules ===== 
- +  * [[projects:odds_rpg:core|Core System]] 
-When attempting something risky: +  * [[projects:odds_rpg:player_guide|Player Guide]] 
- +  * [[projects:odds_rpg:gm_guide|GM Guide]] 
-  Roll 1d20 + Attribute + Skill +  * [[projects:odds_rpg:intro_adventure|Intro Adventure]]
- +
-Compare the result to a Target Number (TN). +
- +
-^ Difficulty ^ TN ^ +
-| Easy | 8 | +
-| Standard | 12 | +
-| Challenging | 15 | +
-| Hard | 18 | +
-| Extreme | 22 | +
- +
-If the result meets or exceeds the TN, the action succeeds. +
- +
-If the result is lower, the action fails and the GM introduces a consequence.+
  
 ---- ----
  
-===== Degrees of Success ===== +===== Reference ===== 
- +  * [[projects:odds_rpg:reference:quick_reference|Quick Reference]] 
-If you exceed the TN by: +  * [[projects:odds_rpg:reference:character_sheet|Character Sheet]]
- +
-  5 or more → Strong Success +
-  10 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 ===== +===== Expanded Systems ===== 
- +  * [[projects:odds_rpg:systems:hero_points|Hero Points]] 
-^ Attribute ^ Represents ^ +  * [[projects:odds_rpg:systems:talents|Talents]] 
-| Might | Strength, endurance, durability | +  * [[projects:odds_rpg:systems:economy|Economy & Wealth]] 
-| Agility | Speed, reflexes, coordination | +  * [[projects:odds_rpg:systems:enemy_builder|Enemy Builder]] 
-| Mind | Logic, perception, technical ability | +  * [[projects:odds_rpg:systems:power_tiers|Power Scaling]]
-| Presence | Willpower, charisma, leadership | +
- +
-Starting array: +
-  +2, +2, +1, +0 +
- +
-Attribute maximum depends on campaign Tier.+
  
 ---- ----
  
-===== Skills ===== +===== Optional Modules ===== 
- +  * [[projects:odds_rpg:modules:magic|Magic Module]] 
-Skills represent training or specialization. +  * [[projects:odds_rpg:modules:cybernetics|Cybernetics & Advanced Gear]] 
- +  * [[projects:odds_rpg:modules:sanity|Sanity System]] 
-Untrained skills default to +0. +  * [[projects:odds_rpg:modules:vehicles|Vehicle Rules]] 
- +  * [[projects:odds_rpg:modules:factions|Faction System]]
-Roll: +
-  1d20 + Attribute + Skill +
- +
-The GM may allow new skills appropriate to the setting.+
  
 ---- ----
  
-===== Impact Rolls ===== +===== Tools ===== 
- +  * [[projects:odds_rpg:tools:encounter_tables|Random Encounter Tables]]
-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 ===== +===== Playtest Module ===== 
- +  * [[projects:odds_rpg:playtest:echoes_below|Echoes Below – Space Lab Adventure]]
-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: +
- +
-  1 Move +
-  1 Action +
-  1 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 ===== +ODDS RPG Version: v1.0 Playtest Build   
- +Status: Locked for Testing
-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 do 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 measures physical durability.   +
-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, roll 1d20: +
- +
-    1–10: Unconscious +
-    11–19: Stable but still Downed +
-    20: 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: +
-  2d10 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 +
-  +
-Status: v1.0 Playtest Build (Locked for testing) +
  
odds_rpg/start.1771363869.txt.gz · Last modified: by freedomotter
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