The darkness-centric biome presents new challenges for players, including tougher Mist horrors that your units can’t attack without light.

Digital Sun Games’ Cataclismo exits early access in less than two weeks, adding the final campaign Act, but even more intriguing is the new biome – The Depths. Playable in all modes, it features tougher Mist horrors with an opaline sheen. To illustrate the challenges posed by The Depths, a new first-look gameplay video is available.

The biome is shrouded in darkness, which isn’t just for atmospheric purposes. You can’t attack any of the horrors lurking within without placing lighting. Iris is getting a range of new Eco-focused skills, which should increase your chances of survival.

Of course, the gameplay also showcases the overhauled Survival mode, which now offers rogue-lite upgrades. Players can select bonuses at the start, including +50 HP to all units or an extra Hunter. After surviving additional waves, upgrades like increased trap damage, additional buildings, etc., will become available.

Cataclismo launches on March 20th for PC.