Curious Expedition 2

You'll quite likely unlock this accidentally without much planning on your part, especially if you steal from shrines.

Will unlock when an enemy (hostile) character on the map is removed by an environmental hazard. These include:

• Fire from volcanoes

• Magma

• Chasms

• Water

If you want to engineer this, get an enemy following 1 square behind you and then walk across sealed magma. They will killed when the path collapses behind you.