Pathfinder 2e has a prescient planner feat that lets you 'have bought' things as you need them to simulate super-preparedness, but its not a big part of the system.I wonder if anyone here has experience with versions of this as part of a more traditional RPG?
There is a GURPS supplement called "Impulse Buys" which allows players to use earned character points (or, alternately, other pools of points) to affect the game state in ways that go well beyond the usual sorts of character spells and powers. I haven't read it carefully yet, but I think it is an attempt to mechanically support more narrative control to the players while still remaining compatible with the balancing mechanisms of GURPS. I see more references on the GURPS forums to people playing hybrid "PBtA-style" (for example) GURPS games. I'm curious how that might play out. I've been surprised over the past few years how much I enjoy allowing some meta-currency in my games, both as a player and a GM.
I like the idea, in theory, of allowing flashbacks even in dungeon crawls (which can have heist-like qualities).