"The prodigious waste from the Serpent forges has to go somewhere, and it all collects here: a toxic trough eaten into the hillside, where slag bubbles up from the ground and scorches our boots. Delightful!"
Each new Star you win in this level earns you a reward from this chest! (Items in parentheses are predefined and not random.)
Related Quest Edit
|Easy||Dark Sinkhole||Win "The Sinkhole" with 3 Stars without using Illuminator Towers|
Upgrade all Pyroclast Surge abilities for the Volcano Towers to Level 1 when you can, then upgrade the Bullseye! for the Sniper Towers to Level 1. After you have all that done, max out Pyroclast Surge abilities as well as max out the two outer Sniper Towers (both Bullseye! and Full Metal Jacket abilities). The inner Sniper Tower should only be upgraded for Bullseye! ability.