What happens
Truegold buildings reach TG8 and Tempered Truegold building progression unlocks. Tempered upgrades sit beyond the normal Truegold stages.
Timing
Around day 315. Treat this as an estimate unless you’ve confirmed the date in your kingdom.
Truegold 8 & Tempered Truegold
Tempered Truegold unlocks for later Truegold steps.