The best rpg games like Greedfall are GreedFall II: The Dying World, Dragon Age: Inquisition and The Outer Worlds. Below are 9, each with the reason it is here — and, at the end, what filtering to rpg costs you.
Filtering to RPG means you want progression — a character to build or a party to grow — layered on top of whatever else you liked.
What you get: A reason to keep going after the novelty wears off. RPGs are the genre that reliably converts hours into feeling more capable.
What made Greedfall worth playing in the first place is covered on the full list. This page is the rpg part of that answer, and only the rpg part.
The follow-up, from the same studio.
The template GreedFall is built on.
Companion-led RPG with real dialogue solutions and a similar scale.
Another mid-budget RPG that commits entirely to its setting.
By Piranha Bytes, with the same rough-edged ambition.
The best version of the companion-and-loyalty structure.
If you want the quest freedom with far better combat.
BioWare's other unusual-setting RPG.
A recent first-person RPG with a similar faction focus.
Immediacy. Almost every RPG asks for a slow first few hours, and the systems that make hour forty good are the same ones that make hour one a menu.
The full list is on games like Greedfall — 9 picks, no genre filter.
GreedFall II: The Dying World. The follow-up, from the same studio.
No. Greedfall released on the PC & Modern Multi-Platform, but a recommendation is only useful if you can play it, so the picks above span platforms and eras. What they share is the genre and the reason.
Whether the stats are the point. In an RPG the build decides what you can do; in an action game with stats the build only decides how fast you do it.
No. The picks below span turn-based, real-time and action RPGs, and each one says which it is.
By hand. Each pick was written for the full Greedfall list first, on what the game actually does, and this page is the part of that list that is rpg — never a genre tag lookup, which is how "best racing games like Super Mario 64" used to be a page on this site.
Or read the rpg guide for where to start in the genre generally.