RPGMemes

It's more formalized than Fate, but absolutely. There are feat trees, even entire classes that make that their whole deal. Buffs, special moves and tactics, AOE debuffs, heal spells that target a different number or area of creatures depending on how many actions you use to cast them, the whole thing.

Paizo just released "Battlecry" last month, and the new classes in the book would be terrible for a solo game: the Guardian (literally a big sack of hit points with high AC, but with special powers to force enemies to attack them and only them) and the Commander (a class that the RPGBot guys called "Dual-Wield your friends!" because they have, among many other support actions, an ability that lets them give one teammate the ability to shove an enemy toward another teammate, who can then hit it. On the commander's turn.)

But every character can use the Aid action, which is very powerful, and often worth sacrificing an attack for; especially if your multiple attack penalty is at -10.