There are a total of 32 achievements in Game Dev Tycoon.

Achievement Description
Good Judgement Create a game with good theme/genre combination.
Cult Status Set a new standard for the early gaming industry.
100K Engine Invest over 100K in a new game engine.
500K Engine Invest over 500K in a new game engine.
1M Engine Invest over one million in a new game engine.
Gold Sell half a million copies of a game without the help of a publisher.
Platinum Sell one million copies of a game without the help of a publisher.
Diamond Sell ten million copies of a game without the help of a publisher.
Unobtainium (seriously?) Sell one hundred million copies of a game without the help of a publisher.
Professional Reach level 5 with a character.
Legend Reach level 10 with a character.
Diversity Have a male and female staff.
Famous Hire someone famous.
Full House Have the maximum number of employees.
Game Dev Tycoon Finish Game Dev Tycoon.
Perfect Game Release a game with a clean score of 10.
Versatile Release a successful game in each of the five main genres.
Writer's Block Naming games is sometimes difficult.
Supporter Support a young start-up. Buy the game.
Detective Find at least one of the easter eggs in the game.
Treasure Hunter Activate the hidden treasure in the garage. (Easter Egg)
Bluehair Reporting for Space Duty Little known fact: Cats go all aggro in space. (Easter Egg)
Eat Cake Show them red barrels some action. (Easter Egg)
Inception Develop the game within the game. (Easter Egg)
Fan Pick an inspired company name. (Easter Egg)
Admirer Fun fact: We almost named our company Megaflop Productions! (Easter Egg)
The Sky is not the Limit Welcome back Chris. We've missed you. (Easter Egg)
Welcome to Mars How did I get here? Why is there a chainsaw? Who cares! (Easter Egg)
Best ride to work ever Workplace saftey anyone? (Easter Egg)
Welcome to your Hospital Patients are reminded not to die in the corridors. (Easter Egg)
Welcome Chief This world is round but different. (Easter Egg)
Painting with nature. Pay homage to a specific Japanese video game (Easter Egg)
Turn it up to 11 Get a reviewer to give a 11/10 rating (Easter Egg)