Here is the full list of all 14 Apocalypse Hotel - there are The Post-Apocalyptic Hotel Simulator achievements.
You are still alive, and in business, after 2 weeks!
You are still alive, and in business, after 4 weeks!
You have achieved a desirability of 30. Your hotel is thriving!
You have managed to save a unique artwork from destruction!
You have entered the bowels of an alien spaceship!
You have killed a terrible, horde spider!
You have closed an enemy portal, slowing the invasion!
You have become allies with the rebel Gogfang!
You have become allies with the Sentizians!
You have become allies with the Grand Fishop Kevin!
You have had 10 guests stay at your hotel at one time!
You have had 20 guests stay at your hotel at one time!
You have had 30 guests stay at your hotel at one time!
You have run out of fuel and had to walk home!