Here is the full list of all 29 Volcanoids achievements.
Survive eruption in a cool improvised shelter
Mine 1000 coal
Kill an enemy with helper drone in an unconventional way
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
Finish the story
Silence three lava sources
Kill a large drone by making it fall into a lava pool
Have 5 control stations running at the same time
Mine 100 coal
Pick up a collectible hidden somewhere on the island
Make drillship as long as possible
Silence two lava sources
Kill 100 Cogs
Claim your own drillship
Silence one lava source
Install drillship segment upgrade
Collect technology component
Kill 10 Cogs
Destroy a large drone with your pickaxe
Take your first sip of coffee
Get multiple back to back caffeine induced speed boosts
Destroy a tank by hitting its weak spot
Hit 6 enemies with the Tesla Cannon at the same time
Destroy an enemy mining drone