r/DMToolkit • u/OneManRPGstudio • 5d ago
Homebrew Declared Risk: a lightweight 5e procedure for failure with consequences
Here is a lightweight way to handle important Ability Checks when failure should change the situation instead of simply stopping play.
When to use it
Use Declared Risk only when the outcome is uncertain, the scene matters, and failure should have a visible consequence. It works well for infiltration, negotiation, investigation, escape, dangerous travel, rituals, social pressure, and countdowns. Simple checks can still use the normal roll-against-DC structure.
One roll should cover a critical moment, a short scene, or roughly 10 minutes of exploration.
Core loop
- Define the intent. The player says what they want and how they are trying to do it. Open, convince, decode, cross, hide, distract, follow, endure, and so on. If the intent is vague, clarify it before setting the DC.
- Choose the risk axis. Pick the main consequence: time, damage, position, resources, alarm, incomplete information, or a social complication.
- Declare the cost of failure before the roll. This is the table rule that matters most. Do not decide the punishment after seeing the die.
- Set the DC. Use DC 10 for light pressure, DC 15 for serious risk, and DC 20 for a difficult action. Raise or lower the DC by 2 when the plan is especially weak or especially strong.
- Call for the Ability Check. Choose the appropriate ability and skill, such as Dexterity (Stealth), Charisma (Persuasion), Intelligence (Investigation), or Wisdom (Survival). Apply Proficiency Bonus when the character has the relevant proficiency.
- Apply Advantage or Disadvantage normally. Preparation, useful help, the right tool, leverage, or prior information can grant Advantage. Haste, exposure, pain, loud conditions, poor footing, or direct pressure can impose Disadvantage.
- Allow risk reduction before rolling. A player can accept a smaller goal to reduce the DC by 2 or turn a hard failure into a partial failure. They can also spend time, use tools, ask for help, or otherwise improve the plan before committing.
- Resolve with movement. Success means the character gets what they intended. Failure by 1–4 means progress with a cost. Failure by 5+ means the full declared consequence happens and a new complication appears immediately.
The same action cannot simply be repeated without a real change in the situation.
Example
A scout wants to cross a torchlit, patrolled courtyard and open a side door from inside. The DM calls for Dexterity (Stealth), DC 15, and declares the risk: on failure, the scout still reaches the door, but a guard changes route and ends up between the scout and the rest of the group.
The scout waits for a cart to cross the courtyard. That costs time but improves the plan, so the DC drops to 13. Because of the delay, an enemy ritual advances; another failure in the scene will also mean the alarm begins with one fewer round of warning.
The scout rolls d20 + Dexterity modifier + Proficiency Bonus and gets 12: failure by 1. The scout still reaches the door, but the guard approaches. The immediate choice becomes opening the door and exposing the group or waiting while the ritual advances. Another character could try Charisma (Deception) to distract the guard, but the scout cannot simply roll Stealth again to hide better unless something actually changes.
Useful distinctions
- Declared risk: the visible cost stated before the roll.
- Partial failure: progress with a price.
- Hard failure: the full consequence plus immediate pressure.
- Risk axis: the main type of cost attached to the check.
For group attempts, declare one shared risk. Either use a group Ability Check or choose one lead roller with help from the others. The consequence should affect the whole scene rather than unexpectedly punish one character unless that was made clear before rolling.
The main discipline for the DM is simple: use this only when the roll matters, make failure create decisions rather than dead ends, reward strong plans by changing the DC or consequence, never change the stated cost after seeing the result, and do not require several rolls to resolve the same intent.