Full list of all 27 Kill It With Fire achievements. It takes around 5-6 hours to unlock all of the achievements in the base game on Windows.
The base game contains 24 achievements, and there is 1 DLC pack containing 3 achievements.
Kill every type of spider.
360 no-scope a spider with the Assault Rifle.
Destroy the printer using the RPG.
Transform a Spiderling hatched from a Queen into a Queen
Complete a mission while in Tiny Mode.
Destroy EVERY dish.
Find every upgrade.
Face the music.
Find batteries.
Find all equipment.
Find every tracker upgrade.
Find every flavor.
Knock every letter off Kill It With Fire HQ
Execute Contingency Omega.
Sink a putt.
Kill a spider by dropping an anvil on it.
Kill a spider after being webbed.
Decimate the hedge maze.
Destroy the gas station.
Kill an Exploding Spider with C4.
Kill a Jumping Spider in mid-air.
Shoot a spider with the Revolver from a long distance.
Burn the money in the safe.
Play a tune.
Unlock the shoe's true power.
Eliminate every blade of grass in the yard.
Betray a Spider Bro.