1. Horde Frequency Timescale:
You can adjust your horde attack frequency in the Menu (from 10 minutes up to 8 hours). Shorter intervals automatically scale reward multipliers and threat curves to keep progression balanced and challenging.
2. Robust Offline Attack Catch-Up:
When offline, missed horde invasions are accurately simulated sequentially with correct exponential threat scaling so your defense ratings always matter.
3. Veterans & Roster Sorting:
Survivors stay for 4 real-world days before a 60% roll to become Veterans. Veterans give exponential combat bonuses ($1.5^v$) and +0.05 job efficiency per level. Roster sorts by earliest departure.