Tool Profile

Hmmsim 2

A train simulator recommended in the Japan railways thread.

At a glance:

First seen:2026-04-19

Last seen:2026-04-19

Sightings:1

Source:jeminie.kr

What it is

A train simulator recommended in the Japan railways thread.

Why developers recommend it

A concrete game/app resurfaced as a fun rail-adjacent recommendation.

Hacker News evidence

2026-04-19

The railways discussion pointed to Hmmsim 2 as a notable simulator.

Why Japan has such good railways