DEFEND THE INNER SANCTUM
Cultists carve a sigil into reality. Stop them in 15 waves. Build towers along the path, weave passive sigils, hold the line.
Lifetime cores defended: 0
The sigil shatters at dawn.
Click pad in side rail → pick tower
Click empty tile → build it
Click placed tower → upgrade or sell
SUMMON WAVE → begin next wave (early-call bonus gold)
SPACE — toggle pause 1/2/3 — speed
SIGILS are passive auras unlocked with rune gold during play. They affect every tower of that element.