
Before the Dark
Excavate a ruin-cache, at most 1 nights survived, 2400 ticks endured.
Read it as: a ruin-cache dug before the second night is over, and the run still going at tick 2,400. Nights are counted at dawn, so the count is 0 until tick 2,400 and 1 until tick 4,800. It cannot unlock before 6:40 on the clock however early you dig, and the chance ends at 13:20.
Why the autopilot alone misses it
Idle villagers dig ruin-caches by themselves, up to Orders → Dig crew at once. The autopilot keeps Dig crew at 2 and rewrites every order each tick, and its people are busy building, so its first cache usually comes too late. So dig first, by hand, and hand over after.
The run, in order


The recorded run
One game on seed 75 from a fresh profile, at the game's ×8 speed: Dig crew 8 by hand with the autopilot off, then the autopilot (F1) from the moment the first cache opened. The run is left from the pause menu once the achievement is announced, and the video ends on the in-game Achievements screen. The badge on every frame says who played; the game's own music, no commentary.

What goes wrong
- Pressing F1 before the cache opens puts Dig crew back to 2 at once.
- Waiting too long without the autopilot: nothing is built, and the Holdfast falls to the first waves in about five minutes.
- Reaching tick 4,800 (13:20) with no cache dug: the second night has been counted and the chance is gone for this run.