Spoiler warning
These codes expose the modern cast graph: D&M leadership, engineers, researchers, and the late Ervin reveal. Use only on the modern keycard.
When a line shows (+64), complete the Ervin unlock, then replay with 64 included.
These codes expose the modern cast graph around D&M and outside researchers. They are major spoilers for the second half of the investigation.
Modern spoilers include workplace relationships and the Ervin reveal path.
Modern codes spoil workplace relationships inside D&M and the outsider researchers. If you are still enjoying the office mystery cold, leave this page.
Complete Part 2 code list
Codes: 27-EN-67-70-74; 27-AT-66-75 (+64); 27-DI-65-73; 28-ST-64; 28-LI-67-70; 28-DI-73-74; 28-BI-65-66; 29-BI-64-73; 29-DI-66-67; 29-LI-70-74; 30-ST-67-74 (+64); 30-LI-66-70; 31-LI-67-70; 32-KI-66 (+64); 32-CH-64.
Modern periods begin at 27 in the public tables. Reya is 70. Laurence Dunn 67, Meg Patterson 66, Sam Moors 65, Pippa Smith 74, Mason Gibbs 73, Jacqueline 75, Ervin 64.
Reya is 70 on every multi-person modern code that includes the player frame. If a code fails, confirm the modern keycard is inserted before assuming the list is wrong.
Parentheses in (+64) are documentation, not typed characters. Add 64 as another person token after the reveal.
Write Reya as 70 in every personal note even when a guide writes 'you'. Consistency prevents dropping the player ID from multi-person addresses.
Cleanup order that wastes less time
Run the mandatory spine without Ervin first so story flags trip in order. After Ervin is available, replay only the (+64) marked addresses. Then return to any modern notebook gaps before hunting TYPE HE-L-P and other mastery achievements.
If a modern code fails, confirm you are not still on the historical keycard. Keycard mismatch is the most common false negative at this stage.
After Ervin is available, only the (+64) marked addresses need a second pass for full cast coverage. That is faster than replaying the entire modern spine.
If only one modern code fails, check leading zeros and keycard state before editing the whole list.
A practical cleanup order is spine without Ervin, Ervin reveal, (+64) replays, then mastery achievements. Skipping the order usually creates false missing-code reports.
Quick answers
FAQ
When do I swap keycards?
Swap when the story prompts you. After that you may freely return to historical memories. If every modern code fails at once, check that the historical keycard is not still inserted from a verification detour.
Is Ervin required to finish?
The critical path can complete without every optional replay, but full cast coverage and some completion goals expect the 64 replays. Treat Ervin as cleanup after the mandatory modern spine rather than an early side hunt.
Why do modern IDs start so high?
They are a separate person namespace from the 1936 1–11 cast so the machine never confuses eras inside one string. That namespace split is also why the diegetic keycard swap exists as a player-facing control.