Here is the full list of all 20 Tesla vs Lovecraft achievements.
Activate the Wardenclyffe and save the world in Eldritch Plane.
Repel 100 Tentacles
Activate the Wardenclyffe and save the world in Aether Plane.
Collect 100 crystals
Activate the Wardenclyffe and save the world.
Complete Chapter 3
Kill 50 Shoggoths
Complete Chapter 2
Choose an EPIC perk
Kill 50 Polyps
Kill 500 Fire Vampires
Complete Chapter 1
Purchase a meta upgrade
Kill 50 Parasites
Kill 200 Spawns of Dagon
Kill 1000 Spiderghouls
Recover and Operate the Mech
Complete Tutorial
123 Deep Ones must die.
Recover lost Tesla Backpack