Here is the full list of all 27 Simmiland achievements.
humankind beat you and crossed the spacetime dimension
found all non edible resources
build modern homes and cars
create enough metal/glass/oil drums/batteries for an industrial revolution
50% of eaten food was processed
mankind flew to space
get an IQ over 200
humankind beat the plague
found all types of food
have mankind build villages on 3 different islands
have mankind learn about conductive electricity the hard way
a type of divine intervention
humans surviving in sub-zero temperatures
have mankind create a church
create an oil reservoir
you shouldn't eat that...
build the sky tower
have mankind create a smelting furnace near lava
have an oven and a cooking pot
create a volcano
create the town center
get 10+ population
have farms, an animal pen and a farmhouse
inspect a swamp herb to have mankind realize medication
create a berry bush
build a log cabin in the woods
create a civilization of at least 6+ pop with an IQ lower than 70