A series first, clouds act as physical objects that can be used for stealth to break missile locks. However, flying in them for too long causes icing, which reduces aircraft performance.
| Game | Codex Function | Perspective | Player Relationship | | :--- | :--- | :--- | :--- | | Mass Effect | Cultural & Species lore | Third-person academic (Prothean VI) | Expansive, exploratory | | Halo (Terminals) | Cryptohistorical mystery | First-person (Cortana/Forerunner) | Puzzle-solving, passive | | Ace Combat 7 | Operational intelligence | Diegetic analyst (LRSSG) | Reward-driven, active | ace combat 7: skies unknown codex