Diablo IV
The Paragon board system is one of the most thoughtful high-level progression systems in action-RPG history. Once you hit the level cap, progression becomes a puzzle of board layouts, rare glyphs, and node paths that interact in non-obvious ways. The same class can produce radically different high-end builds depending on board choices.
Elden Ring
Elden Ring's level-up system is deceptively simple — stat points across eight attributes — but depth comes from how attributes interact with equipment requirements and scaling. Understanding when diminishing returns kick in for each stat is genuine mastery. The progression system rewards knowledge, not just time investment.
Baldur's Gate 3
Built on D&D 5e, BG3's progression rewards players who understand multiclassing, feats, and subclass systems. Combining three levels of one class with nine of another can produce entirely new archetypes not described anywhere in the game. Discovery-driven progression — learning that a combination is devastating because you experimented — is uniquely satisfying.