Here is the full list of all 50 Nihilist Simulator achievements.
Die 30 times.
Die 20 times.
90 graves on map.
80 graves on map.
70 graves on map.
60 graves on map.
Smash Xenophon's Grave!
50 graves on map.
Smash Zeno's Grave!
Smash W. O. Quine's Grave!
40 graves on map.
Smash Miguel de Unamuno's Grave!
Smash William James' Grave!
Smash George Berkeley's Grave!
Smash G. W. F. Hegel's Greve!
Smash Yan Yuan's Grave!
Smash Albert Camus' Grave!
Smash Gottlob Frege's Grave!
Smash Gottfried Leibniz's Greve!
Smash Immanuel Kant's Grave!
Smash Arthur Schopenhauer's Grave!
Smash Voltaire's Grave!
Smash Allama Iqbal's Grave!
Smash Plato's Grave!
Smash Nelson Goodman's Grave!
Smash Epicurus' Grave!
Smash Ludwig Wittgenstein's Grave!
Smash Friedrich Nietzsche's Grave!
Smash J. J. Rousseau's Grave!
Smash Aristotle's Grave!
30 graves on map.
20 graves on map.
10 graves on map.
5 graves on map.
Smash William of Ockham's Grave!
Smash René Descartes' Grave!
Smash Thales' Grave!
Smash Niccolo Machiavelli's Grave!
Hang yourself 5 times in one life.
Get struck by electricity power 5 times in one life.
Get hit by anvil in the head 5 times in one life.
Burn yourself 5 times in one life (oil).
Get stunned by bees 5 times in one life.
Get squished by piano.
Get stabbed by spikes 5 times in one life.
Die 10 times.
Drink poison 5 times in one life.
Get squished by cripple.
Get cut by saw 5 times in one life.
Burn yourself 5 times in one life (campfire).