It sounds like you're looking for a deep dive into , particularly as it relates to the CODEX release or perhaps the "Codex" as an in-game concept (like the lore-heavy Blood Codes).
Players can swap Blood Codes at any time, instantly changing their stats and available "Gifts" (active and passive skills). CODE VEIN (CODEX)
This version often served as a baseline for the modding community, which introduced everything from costume swaps to significant gameplay rebalances. 4. Gameplay Innovation: The Partner System It sounds like you're looking for a deep