Help tracking down something

[Kane0]

Help me forums for my google-fu has failed me!

I'm looking for the system or supplement that uses something called the 'supply die', where instead of tracking things like ammo and rations manually it's abstracted into a die roll. I think the size of the die shrinks as you use up your supply too?

[timesparrow]

If I remember correctly, Forbidden Lands from Free League has supply/resource dice that are rolled and decreased depending on certain circumstances.

[Pauly]

Help me forums for my google-fu has failed me!

I'm looking for the system or supplement that uses something called the 'supply die', where instead of tracking things like ammo and rations manually it's abstracted into a die roll. I think the size of the die shrinks as you use up your supply too?

It’s a reasonably common mechanic in wargames. In wargames it usually is rolling a “1” on an attack roll causes a “low on ammo” condition and to remove the condition you have to withdraw a certain distance away from the enemy or move within supply range of your supply wagon.

[SpyOne]

D20 Modern had PCs make purchases by rolling against their wealth instead of tracking cash.

[Nizaris]

The Alien RPG has a die roll mechanic for using anything that's battery powered, iirc, each time you use a powered object and it matters in the narrative, you roll a d6 to determine if you lose one point of power (1-5), if you roll higher than the current power remaining you don't lose a charge. Ammo though is largely ignored unless you panic or intentionally empty a magazine and it's measured in reloads.

[Atranen]

There's the "usage die" in the Black Hack, which sounds like what you're describing.

Any item listed in the equipment section that has a Usage die is considered a consumable, limited item. When that item is used the next Minute (turn) its Usage die is rolled. If the roll is 1-2 then the usage die is downgraded to the next lower die in the following chain:

d20 > d12 > d10 > d8 > d6 > d4

When you roll a 1-2 on a d4 the item is expended and the character has no more of it left.

[Kane0]

There's the "usage die" in the Black Hack, which sounds like what you're describing.

Huh, well there you go. Turns out I was on the right track.