Here is the full list of all 29 Volcanoids achievements.
Get multiple back to back caffeine induced speed boosts
Finish the story
Kill an enemy with helper drone in an unconventional way
Silence three lava sources
Mine 100 coal
Make drillship as long as possible
Have 5 control stations running at the same time
Silence two lava sources
Kill 100 Cogs
Take your first sip of coffee
Silence one lava source
Install drillship segment upgrade
Collect technology component
Claim your own drillship
Kill 10 Cogs
Mine 1000 coal
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
Kill a large drone by making it fall into a lava pool
Pick up a collectible hidden somewhere on the island
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