Here is the full list of all 29 Volcanoids achievements.
Finish the story
Pick up a collectible hidden somewhere on the island
Silence three lava sources
Make drillship as long as possible
Kill a large drone by making it fall into a lava pool
Silence two lava sources
Kill an enemy with helper drone in an unconventional way
Get multiple back to back caffeine induced speed boosts
Take your first sip of coffee
Have 5 control stations running at the same time
Kill 10 Cogs
Silence one lava source
Collect technology component
Install drillship segment upgrade
Claim your own drillship
Mine 100 coal
Mine 1000 coal
Kill 100 Cogs
Win the game without taking any quest
Win the game in 7 hours or less
Win the game without having more than one power plant at any time
Win the game without having more than one storage module at any time
Survive eruption in a cool improvised shelter
Destroy a large drone with your pickaxe
Destroy a tank by hitting its weak spot
Hit 6 enemies with the Tesla Cannon at the same time
Destroy an enemy mining drone