Anime, with its diverse range of genres and themes, has explored existential questions through its complex characters and intricate storylines. Here are seven of the best anime that deal with existentialism:

1. Neon Genesis Evangelion – This classic anime delves deep into the psyches of its characters as they face apocalyptic threats and personal demons, all while questioning their existence and purpose.

2. Serial Experiments Lain – A series that challenges perceptions of reality and identity in the digital age, Serial Experiments Lain is an immersive dive into the nature of existence within an increasingly interconnected world.

3. Ergo Proxy – In a post-apocalyptic future, humans and androids coexist in a bleak world where characters search for meaning and identity, prompting viewers to ponder what it means to be alive.

4. Texhnolyze – With its gritty cyberpunk setting, Texhnolyze presents a nihilistic view of the future, focusing on survival in a dying city where hope seems lost.

5. Ghost in the Shell – Exploring what it means to be human when machines start to assimilate human qualities, Ghost in the Shell is philosophical cyberpunk at its finest.

6. Haibane Renmei – This anime weaves a tale about a group of beings resembling angels who try to find their purpose within a walled town, touching upon themes of existential angst and redemption.

7. Mushishi – Following the travels of Ginko, a “Mushi Master,” this anime contemplates the interconnection between life and nature, revealing a beautiful yet indifferent world full of ephemeral creatures that affect human lives in mysterious ways.

These anime not only entertain but also offer profound insights into the human condition and existential philosophy.