PGSimCity - How PostgreSQL Works | Hacker News

Hacker News commenters praised PGSimCity as an engaging 3D way to learn how PostgreSQL internals work.

The main criticism was UX: the interface feels crowded, with too much on-screen noise and unclear camera controls.

Readers wanted the product to emphasize the core visualization more and simplify the presentation.

Commenters also said the same interactive approach could be reused for other technical domains and self-teaching.