Spendthrift

Spendthrift
Release date	25 January 2016 (Update)
Gizmo type	Weapon
Maximum rank
Standard	5
Ancient	6
In-game description
1% chance per rank to deal 1% extra damage per rank, at the cost of 1 gold coin per extra point of damage dealt. This perk has an increased chance to activate on level 20 items.
Infobox • Talk page

Spendthrift is an Invention perk that has a chance to deal extra damage, but at the cost of consuming coins. It can be created in weapon gizmos.

Spendthrift is much weaker than other damage increasing perks like Precise and Crackling. The exact effects of spendthrift are difficult to calculate as damage is not evenly distributed; however, rough calculations of its effects can be created if a scenario is created where every attack does the same amount of damage.

For the table below, a rate of 100,000 damage per minute spread across 50 attacks has been used.

Spendthrift does not increase the damage from bleed attacks, such as Dismember. Spendthrift will first take coins from your inventory, and then coin pouch.

When the perk triggers, it prompts the message: Spendthrift has activated and dealt an additional [number] damage, costing that amount in coins too!

Cost of spendthrift

Rank	Chance	Damage/Attack (effective)	DPM	Damage increase (%)	Cost/Minute	(per hour)
None	0%	2,000.0	100,000	0%	0	0
1	1%	2,000.2	100,010	0.01%	10	600
2	2%	2,000.8	100,040	0.04%	40	2,400
3	3%	2,001.8	100,090	0.09%	90	5,400
4	4%	2,003.2	100,160	0.16%	160	9,600
5	5%	2,005.0	100,250	0.25%	250	15,000
6	6%	2,007.2	100,360	0.36%	360	21,600

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
	Magic parts	Common	0	0	0	1	1–2	0	0	0	0	1	1	1–2	1–2	1–2
	Precious components	Uncommon	0	1	1–2	1–3	1–4	0	1	1–2	1–2	1–3	1–4	1–4	1–5	1–6
	Saradomin components	Rare	0	1–2	2–3	3–4	5	0	1	2	2–3	3–4	4–5	5–6	6	6
	Fortunate components	Rare	0	1–2	1–3	1–4	1–5	0	1	1–2	1–3	1–4	1–5	1–6	1–6	2–6

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 16 April 2018 (Update):
  • Added a missing space to the message given when the spendthrift perk activates.

• update 25 January 2016 (Update):
  • Added to game.