Prosper

Prosper
Release date	6 February 2017 (Update)
Gizmo type	Tool
Maximum rank
Standard	1
Ancient	1
In-game description
Allows you to find clue scrolls whilst skilling and a 1% chance for elite clues found this way to be upgraded to master.
Infobox • Talk page

Prosper is an Invention perk that provides a chance to find clue scrolls while training skills. It can be created in tool gizmos. The chance of obtaining a clue scroll differs depending on the skill that is trained.

Prosper has a chance of triggering whenever experience is gained in one of the skills listed below, and so to trigger this perk most frequently the method that grants the quickest experience drops should be chosen. Different skills have different chances of granting a clue scroll (see Drop rate). Smithing offers both the greatest chance at rolling a clue and has the fastest experience drops (once every two ticks).

The Prosper perk can still trigger while training even if the player has reached the soft cap of clue scrolls of a certain tier, which is 25 or 50 clue scrolls, depending on whether the clue capacity upgrade has been purchased. If the player's inventory is full when the perk triggers, the clue scroll will be dropped to the floor.

When the perk triggers, it prompts the message: Your Prosper perk allows you to find a new treasure trail: Sealed clue scroll (difficulty)

Drop rate

Rolling a clue

Prosper rolls whenever experience is gained in the following skills. The chance for Prosper to activate for each skill is as follows:

Skill	Chance	Chance (level 20)
Woodcutting	1/1,280	1/1,152
Mining	1/2,560	1/2,304
Firemaking	1/1,280	1/1,152
Fishing	1/1,280	1/1,152
Smithing	1/960	1/864
Archaeology	Unknown	Unknown

Clue tier

When Prosper activates, the chance to obtain a specific tier of a clue scroll is as follows:

Tier	Chance (simplified)	Chance (specific)
Easy	1/20	1/20
Medium	2/20	2/20
Hard	10/20	10/20
Elite	7/20	693/2000
Master		7/2000

Sources

Material		Rarity	Perk ranks with X materials
			Standard gizmo					Ancient gizmo
			1	2	3	4	5	1	2	3	4	5	6	7	8	9
	Timeworn components	Ancient	0	0	0	0	0	0	1	1	1	1	1	1	1	1
	Evasive components	Uncommon	0	0	1	1	1	0	0	0	1	1	1	1	1	1
	Third-age components	Rare	1	1	1	1	1	0	1	1	1	1	1	1	1	1
	Stave parts	Common	0	0	0	0	1	0	0	0	0	0	0	0	1	1

Suggested gizmos

Gizmo layout	Possible perks	Approx costs
	Prosper Cautious Open in calculator: Tool	64,947 4x Evasive 16,236.75 each See RS:Material prices for details on how prices are approximated.
	Prosper Open in calculator: Tool	9,221,764.89 1x Third-age 9,221,764.89 each See RS:Material prices for details on how prices are approximated.
	Fortune 3 Prosper Open in calculator: Ancient tool	300,719.16 7x Timeworn 42,959.88 each See RS:Material prices for details on how prices are approximated.
	Honed 4–5 Prosper Open in calculator: Ancient tool	5,825,109.66 3x Timeworn 42,959.88 each 6x Silent 949,371.67 each See RS:Material prices for details on how prices are approximated.
	Chance increases with and level 120. Chance for Honed 6, Prosper is 18.69% or 1/5.35 chance. Honed 5–6 Prosper Open in calculator: Ancient tool	16,816,738.25 1x Third-age 9,221,764.89 each 8x Silent 949,371.67 each See RS:Material prices for details on how prices are approximated.

Update history

This information has been compiled as part of the update history project. Some updates may not be included - see here for how to help out!

• patch 17 February 2020 (Update):
  • The Prosper perk from the Invention skill now states which level of clue you obtain when it activates.

• patch 26 March 2018 (Update):
  • The Prosper perk text now mentions the chance to get a Master Clue scroll.

• patch 20 March 2017 (Update):
  • Unfiltered the message received when acquiring a clue scroll via the Prosper perk.

• patch 13 February 2017 (Update):
  • The chance of the Prosper perk giving a clue scroll is now doubled.

• update 6 February 2017 (Update):
  • Added to game.